Wykres commitów

427 Commity (master)

Autor SHA1 Wiadomość Data
JPFrancoia 3dcb551d89 nrf/README: Describe Pin numbering scheme for nRF52840.
Clarify that the nRF52840's GPIO 1.00 to 1.15 maps to Pin(32-47) in
MicroPython.
2020-11-22 21:01:49 +01:00
Damien George 18518e26a7 ports: Use correct in/out endpoint size in TUD_CDC_DESCRIPTOR.
The last argument of TUD_CDC_DESCRIPTOR() is the endpoint size (or
wMaxPacketSize), not the CDC RX buffer size (which can be larger than the
endpoint size).

Signed-off-by: Damien George <damien@micropython.org>
2020-10-17 15:49:16 +11:00
Damien George 71f3ade770 ports: Support legacy soft I2C/SPI construction via id=-1 arg.
With a warning that this way of constructing software I2C/SPI is
deprecated.  The check and warning will be removed in a future release.

This should help existing code to migrate to the new SoftI2C/SoftSPI types.

Signed-off-by: Damien George <damien@micropython.org>
2020-10-01 12:57:10 +10:00
Damien George 39d50d129c ports: Add SoftI2C and SoftSPI to machine module where appropriate.
Previous commits removed the ability for one I2C/SPI constructor to
construct both software- or hardware-based peripheral instances.  Such
construction is now split to explicit soft and non-soft types.

This commit makes both types available in all ports that previously could
create both software and hardware peripherals: machine.I2C and machine.SPI
construct hardware instances, while machine.SoftI2C and machine.SoftSPI
create software instances.

This is a breaking change for use of software-based I2C and SPI.  Code that
constructed I2C/SPI peripherals in the following way will need to be
changed:

    machine.I2C(-1, ...)            ->  machine.SoftI2C(...)
    machine.I2C(scl=scl, sda=sda)   ->  machine.SoftI2C(scl=scl, sda=sda)

    machine.SPI(-1, ...)            ->  machine.SoftSPI(...)
    machine.SPI(sck=sck, mosi=mosi, miso=miso)
                        ->  machine.SoftSPI(sck=sck, mosi=mosi, miso=miso)

Code which uses machine.I2C and machine.SPI classes to access hardware
peripherals does not need to change.

Signed-off-by: Damien George <damien@micropython.org>
2020-10-01 12:57:10 +10:00
Damien George aaed33896b extmod/machine_i2c: Remove "id" arg in SoftI2C constructor.
The SoftI2C constructor is now used soley to create SoftI2C instances, it
can no longer delegate to create a hardware-based I2C instance.

Signed-off-by: Damien George <damien@micropython.org>
2020-10-01 12:57:10 +10:00
Damien George c35deb2625 extmod/machine_i2c: Rename type to SoftI2C and add custom print method.
Also rename machine_i2c_type to mp_machine_soft_i2c_type.  These changes
make it clear that it's a soft-I2C implementation, and match SoftSPI.

Signed-off-by: Damien George <damien@micropython.org>
2020-10-01 12:57:10 +10:00
Damien George 27e117307d nrf: Remove unnecessary includes of mpconfigport.h and its header guard.
The mpconfigport.h file is an internal header and should only ever be
included once by mpconfig.h.

Signed-off-by: Damien George <damien@micropython.org>
2020-09-09 00:13:34 +10:00
Damien George 75344af4ca nrf/main: Make mp_builtin_open signature match that in py/builtin.h.
Signed-off-by: Damien George <damien@micropython.org>
2020-09-09 00:13:34 +10:00
Damien George 06659077a8 all: Update Python code to conform to latest black formatting.
Updating to Black v20.8b1 there are two changes that affect the code in
this repository:

- If there is a trailing comma in a list (eg [], () or function call) then
  that list is now written out with one line per element.  So remove such
  trailing commas where the list should stay on one line.

- Spaces at the start of """ doc strings are removed.

Signed-off-by: Damien George <damien@micropython.org>
2020-08-29 15:18:01 +10:00
Roberto Colistete Jr 91c5d168c0 nrf/Makefile: Improve user C modules support.
Add CFLAGS_EXTRA to CFLAGS. Include LDFLAGS_MOD to the compilation.
And, add SRC_MOD to SRC_QSTR.
2020-08-26 22:14:40 +02:00
Glenn Ruben Bakke caaaa2b1f4 nrf: Enable more features for all targets.
Enabling the following features for all targets, except for nrf51
targets compiled to be used with SoftDevice:

- MICROPY_PY_ARRAY_SLICE_ASSIGN
- MICROPY_PY_SYS_STDFILES
- MICROPY_PY_UBINASCII
2020-07-22 12:54:20 +02:00
Glenn Ruben Bakke 0a79e18398 nrf: Split mpconfigport.h into multiple files.
Splitting mpconfigport.h into multiple device specific
files in order to facilitate variations between devices.

Due to the fact that the devices might have variations in
features and also variations in flash size it makes sense
that some devices offers more functionality than others
without being limited by restricted devices.

For example more micropython features can be activated for
nrf52840 with 1MB flash, compared to nrf51 with 256KB.
2020-07-22 12:54:20 +02:00
Matt Trentini 486cb6dd4a nrf: Add board definition for nRF52840-MDK-USB-Dongle. 2020-07-16 23:47:13 +10:00
Glenn Ruben Bakke 95d0d1c486 nrf/boards: Enable RTCounter machine module for nrf9160 boards.
Resolves dependencies for MICROPY_PY_TIME_TICKS which
requires to link against nrfx_rtc.c functions by setting
MICROPY_PY_MACHINE_RTCOUNTER to 1.
2020-07-16 11:48:52 +02:00
Glenn Ruben Bakke b776fe6969 nrf/nrfx_config: Disable RTC2 for nRF9160 targets.
nRF9160 does not have any RTC2. Disable the configuration in
case of NRF9160_XXAA.
2020-07-16 11:44:44 +02:00
Alex Tsamakos f743bd3d25
nrf/boards: Add initial support for Actinius Icarus.
Example make command:

make BOARD=actinius_icarus
2020-07-10 03:48:30 +02:00
Martin Fischer 59ed3bdd9f nrf: Enable nrf tick support on all boards by default.
Having time.ticks_ms/us/add/diff is very useful and used by many drivers,
libraries and components.
2020-07-08 23:47:08 +10:00
Martin Fischer 15574cd665 nrf: Add support for time.ticks_xxx functions using RTC1.
This commit adds time.ticks_ms/us support using RTC1 as the timebase.  It
also adds the time.ticks_add/diff helper functions.  This feature can be
enabled using MICROPY_PY_TIME_TICKS.  If disabled the system uses the
legacy sleep methods and does not have any ticks functions.

In addition support for MICROPY_EVENT_POLL_HOOK was added to the
time.sleep_ms(x) function, making this function more power efficient and
allows support for select.poll/asyncio.  To support this, the RTC's CCR0
was used to schedule a ~1msec event to wakeup the CPU.

Some important notes about the RTC timebase:

- Since the granularity of RTC1's ticks are approx 30usec, time.ticks_us is
not perfect, does not have 1us resolution, but is otherwise quite usable.
For tighter measurments the ticker's 1MHz counter should be used.

- time.ticks_ms(x) should *not* be called in an IRQ with higher prio than
the RTC overflow irq (3).  If so it introduces a race condition and
possibly leads to wrong tick calculations.

See #6171 and #6202.
2020-07-08 23:47:02 +10:00
Glenn Ruben Bakke c2317a3a8d nrf/Makefile: Disable ROM text compression when compiling for debug.
When compiling for debug (-O0) the .text segment cannot fit the flash
region when MICROPY_ROM_TEXT_COMPRESSION=1, because the compiler does not
optimise away the large if-else chain used to select the correct compressed
string.

This commit enforces MICROPY_ROM_TEXT_COMPRESSION=0 when compiling for
debug (DEBUG=1).
2020-07-01 22:54:52 +10:00
Glenn Ruben Bakke f22f7b285e nrf/bluetooth/ble_uart: Swap end character on cooked strings.
Changing line ending character of cooked strings makes rshell/pyboard.py
work correctly over Bluetooth socat/pts devices.
2020-07-01 22:51:30 +10:00
Glenn Ruben Bakke 5996bf72f1 nrf/bluetooth/ble_uart: Fix random advertisement name.
The storage space of the advertisement name is not declared static, leading
to a random advertisement name.  This commit fixes the issue by declaring
it static.
2020-07-01 22:50:56 +10:00
Glenn Ruben Bakke ab0c14dba0 nrf/bluetooth/ble_uart: Add mp_hal_stdio_poll function.
This adds support for enabling MICROPY_PY_SYS_STDFILES when running UART
over Bluetooth (NUS).
2020-07-01 22:50:41 +10:00
Glenn Ruben Bakke fc1f22a097 nrf/bluetooth: Handle data length update request.
The Bluetooth link gets disconnected when connecting from a PC after 30-40
seconds.  This commit adds handling of the data length update request.  The
data length parameter pointer is set to NULL in the reply,  letting the
SoftDevice automatically set values and use them in the data length update
procedure.
2020-07-01 22:49:04 +10:00
Glenn Ruben Bakke 9dfb4ae6aa nrf/bluetooth/ble_uart: Fix implicit declaration of function.
mp_keyboard_interrupt() triggers a compiler error because the function is
implicitly declared.  This commit adds "py/runtime.h" to the includes.

Fixes issue #5732.
2020-07-01 22:48:25 +10:00
Glenn Ruben Bakke 8d71cc2e7d nrf/bluetooth: Use MP_ERROR_TEXT for all error messages.
This follows up on commit def76fe4d9.

Fixes issue #6152.
2020-06-17 11:33:22 +10:00
Jim Mussared cd9a8c1742 nrf: Add openocd as a supported flasher.
Tested with the Particle Debugger on a Xenon.
2020-05-15 15:06:02 +10:00
Jim Mussared e7f8c7d9a3 nrf: Update to work with nrfx v2.0.0, to match TinyUSB.
Commit 6cea369b89 updated the TinyUSB
submodule to a version based on nrfx v2.0.0.  This commit updates the nrf
port to work with the latest TinyUSB and nrfx v2.0.0.
2020-05-15 15:06:02 +10:00
Damien George 8f348778e1 nrf/mphalport: Remove need for "syntax unified" in mp_hal_delay_us.
Because it can confuse older versions of gcc.  Instead use the correct
instruction for Thumb vs Thumb-2 (sub vs subs) so the assembler emits the
2-byte instruction.

Related to commit 1aa9ff9141.
2020-05-15 15:04:49 +10:00
Damien George eb5e9c00f8 nrf/Makefile: Don't use -fno-builtin for Cortex-M0 builds.
So that error string compression is optimised correctly (it needs strcmp to
be optimised away by the compiler).
2020-05-15 13:39:12 +10:00
stijn 84fa3312cf all: Format code to add space after C++-style comment start.
Note: the uncrustify configuration is explicitly set to 'add' instead of
'force' in order not to alter the comments which use extra spaces after //
as a means of indenting text for clarity.
2020-04-23 11:24:25 +10:00
stijn d6243568a0 all: Remove commented-out include statements. 2020-04-23 11:24:15 +10:00
Damien George 8e048d2548 all: Clean up error strings to use lowercase and change cannot to can't.
Now that error string compression is supported it's more important to have
consistent error string formatting (eg all lowercase English words,
consistent contractions).  This commit cleans up some of the strings to
make them more consistent.
2020-04-13 22:19:37 +10:00
Jim Mussared 073b9a5eb8 ports: Enable error text compression for various ports, but not all.
Enabled on: bare-arm, minimal, unix coverage/dev/minimal, stm32, esp32,
esp8266, cc3200, teensy, qemu-arm, nrf.  Not enabled on others to be able
to test the code when the feature is disabled (the default case).

Code size change for this commit:

   bare-arm:  -600 -0.906%
minimal x86:  -308 -0.208%
   unix x64:    +0 +0.000%
unix nanbox:    +0 +0.000%
      stm32: -3368 -0.869% PYBV10
     cc3200: -1024 -0.558%
    esp8266: -2512 -0.368% GENERIC
      esp32: -2876 -0.205% GENERIC[incl -3168(data)]
        nrf: -1708 -1.173% pca10040
       samd:    +0 +0.000% ADAFRUIT_ITSYBITSY_M4_EXPRESS
2020-04-05 15:02:06 +10:00
Jim Mussared def76fe4d9 all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
Zoltán Vörös c5cc64175b ports: Add lib/libm/roundf.c to bare-metal Makefile's.
This function is not used by the core but having it as part of the build
allows it to be used by user C modules, or board extensions.  The linker
won't include it in the final firmware if it remains unused.
2020-03-25 01:22:00 +11:00
Damien George feb2577585 all: Remove spaces between nested paren and inside function arg paren.
Using new options enabled in the uncrustify configuration.
2020-03-25 00:39:46 +11:00
Damien George ad9a0ec8ab all: Convert exceptions to use mp_raise_XXX helpers in remaining places. 2020-03-18 17:26:19 +11:00
Damien George 69661f3343 all: Reformat C and Python source code with tools/codeformat.py.
This is run with uncrustify 0.70.1, and black 19.10b0.
2020-02-28 10:33:03 +11:00
Damien George 3f39d18c2b all: Add *FORMAT-OFF* in various places.
This string is recognised by uncrustify, to disable formatting in the
region marked by these comments.  This is necessary in the qstrdef*.h files
to prevent modification of the strings within the Q(...).  In other places
it is used to prevent excessive reformatting that would make the code less
readable.
2020-02-28 10:31:07 +11:00
Damien George ac8383a95d nrf: Use MICROPY_HW_ENABLE_RNG instead of MICROPY_PY_RANDOM_HW_RNG.
The "random" module no longer uses the hardware RNG (the extmod version of
this module has a pseudo-random number generator), so the config option
MICROPY_PY_RANDOM_HW_RNG is no longer meaningful.  This commit replaces it
with MICROPY_HW_ENABLE_RNG, which controls whether the hardware RNG is
included in the build.
2020-02-18 12:43:16 +11:00
Damien George 6ad3bb1e12 nrf: Remove custom "random" module and use extmod version instead.
Hardware RNG code is moved to drivers/rng.[ch].
2020-02-18 12:43:16 +11:00
cccc 4f3e5ea934 nrf/drivers/bluetooth: Fix variable initialisation error with older gcc.
Without this change, arm-none-eabi-gcc version 4.9.3 (at least) would give
a "missing braces around initializer" error.
2020-02-16 23:46:27 +11:00
Damien George ad7213d3c3 py: Add mp_raise_msg_varg helper and use it where appropriate.
This commit adds mp_raise_msg_varg(type, fmt, ...) as a helper for
nlr_raise(mp_obj_new_exception_msg_varg(type, fmt, ...)).  It makes the
C-level API for raising exceptions more consistent, and reduces code size
on most ports:

   bare-arm:   +28 +0.042%
minimal x86:  +100 +0.067%
   unix x64:   -56 -0.011%
unix nanbox:  -300 -0.068%
      stm32:  -204 -0.054% PYBV10
     cc3200:    +0 +0.000%
    esp8266:   -64 -0.010% GENERIC
      esp32:  -104 -0.007% GENERIC
        nrf:  -136 -0.094% pca10040
       samd:    +0 +0.000% ADAFRUIT_ITSYBITSY_M4_EXPRESS
2020-02-13 11:52:40 +11:00
Damien George 97eca38c4f py: Add mp_raise_type helper macro and use it where appropriate.
This provides a more consistent C-level API to raise exceptions, ie moving
away from nlr_raise towards mp_raise_XXX.  It also reduces code size by a
small amount on some ports.
2020-02-13 11:03:37 +11:00
Damien George 580fd636c0 nrf/drivers: Use mp_raise_msg where appropriate, and shorten exc msgs.
If the exception doesn't need printf-style formatting then calling
mp_raise_msg is more efficient.  Also shorten exception messages to match
style in core and other ports.
2020-02-11 11:45:14 +11:00
caochaowu 61f64c78a6 nrf/boards/common.ld: Add ENTRY(Reset_Handler) in linker script.
It's not strictly needed but can be helpful when using a debugger.
2020-02-01 00:09:44 +11:00
Memiks 4ab4bf3ec6 ports: Modify mp_hal_pin_write macro so it can be used as a function.
Even though it doesn't return anything it could still be used like a
function.  Addresses issue #5501.
2020-01-14 23:48:42 +11:00
Tim Gates 007a704d82 nrf/examples: Fix typo in mountsd.py, wireing -> wiring. 2019-12-28 12:07:30 +11:00
Yonatan Goldschmidt b2e4a57289 nrf/main: Remove unnecessary repl_info(0) call.
It's statically initialized to 0.
2019-12-28 00:08:31 +11:00
Yonatan Goldschmidt 61d2b40ad5 lib/utils/pyexec: Introduce MICROPY_REPL_INFO, wrap debug prints in it.
For the 3 ports that already make use of this feature (stm32, nrf and
teensy) this doesn't make any difference, it just allows to disable it from
now on.

For other ports that use pyexec, this decreases code size because the debug
printing code is dead (it can't be enabled) but the compiler can't deduce
that, so code is still emitted.
2019-12-28 00:05:39 +11:00
David Lechner e79424d672 ports: Allow overriding CROSS_COMPILE in a custom makefile.
Many ports already allow overriding CROSS_COMPILE.  This modifies the
remaining ports to allow it as well.
2019-12-27 23:53:16 +11:00
Daniel Mizyrycki 2df6a0436d nrf/boards/particle_xenon: Enable USB CDC on Particle Xenon board. 2019-12-09 14:10:24 +11:00
Andrej Krejcir 210d053286 nrf/main: Execute boot.py/main.py frozen modules without a file system.
When the file system is not enabled, the boot.py and main.py modules will
still be executed, if they are frozen.
2019-12-05 23:11:12 +11:00
Damien George 799b6d1e0c extmod: Consolidate FAT FS config to MICROPY_VFS_FAT across all ports.
This commit removes the Makefile-level MICROPY_FATFS config and moves the
MICROPY_VFS_FAT config to the Makefile level to replace it.  It also moves
the include of the oofatfs source files in the build from each port to a
central place in extmod/extmod.mk.

For a port to enabled VFS FAT support it should now set MICROPY_VFS_FAT=1
at the level of the Makefile.  This will include the relevant oofatfs files
in the build and set MICROPY_VFS_FAT=1 at the C (preprocessor) level.
2019-11-11 11:37:38 +11:00
Damien George c13f9f209d all: Convert nlr_raise(mp_obj_new_exception_msg(x)) to mp_raise_msg(x).
This helper function was added a while ago and these are the remaining
cases to convert, to save a bit of code size.
2019-11-05 11:35:45 +11:00
Damien George 9aabb6c01b extmod: Factor out block-device struct to make independent of fatfs. 2019-10-29 12:12:37 +11:00
Damien George d2384efa80 py: Automatically provide weak links from "foo" to "ufoo" module name.
This commit implements automatic module weak links for all built-in
modules, by searching for "ufoo" in the built-in module list if "foo"
cannot be found.  This means that all modules named "ufoo" are always
available as "foo".  Also, a port can no longer add any other weak links,
which makes strict the definition of a weak link.

It saves some code size (about 100-200 bytes) on ports that previously had
lots of weak links.

Some changes from the previous behaviour:
- It doesn't intern the non-u module names (eg "foo" is not interned),
  which saves code size, but will mean that "import foo" creates a new qstr
  (namely "foo") in RAM (unless the importing module is frozen).
- help('modules') no longer lists non-u module names, only the u-variants;
  this reduces duplication in the help listing.

Weak links are effectively the same as having a set of symbolic links on
the filesystem that is searched last.  So an "import foo" will search
built-in modules first, then all paths in sys.path, then weak links last,
importing "ufoo" if it exists.  Thus a file called "foo.py" somewhere in
sys.path will still have precedence over the weak link of "foo" to "ufoo".

See issues: #1740, #4449, #5229, #5241.
2019-10-22 15:30:52 +11:00
Damien George d7a9388fe0 ports: Add new make target "submodules" which inits required modules. 2019-10-15 17:14:41 +11:00
Glenn Ruben Bakke 98c2eabaff nrf/boards: Add nrf9160 pca10090 board. 2019-10-10 21:36:20 +02:00
Glenn Ruben Bakke 82fe6b0526 nrf: Add nrf9160 base support.
This patch add basic building blocks for nrf9P60.

It also includes a secure bootloader which forwards all
possible peripherals that are user selectable to become
non-secure. After configuring Flash, RAM and peripherals
the secure bootloader will jump to the non-secure domain
where MicroPython is placed.

The minimum size of a secure boot has to be a flash
block of 32Kb, hence why the linker scripts are
offsetting the main application this much.

The RAM offset is set to 128K, to allow for later
integration of Nordic Semiconductor's BSD socket
library which reserves the range 0x20010000 - 0x2001FFFF.
2019-10-10 21:35:27 +02:00
Glenn Ruben Bakke 01a3110e36 nrf/boards: Add support for pca10059.
Add support for pca10059 with REPL over tinyusb USB CDC.

The board also includes a board specific module that will
recover UICR->REGOUT0 in case this has been erased.

This initial support does not preserve any existing bootloader
on the pca10090 in case this was present, and expects to use all
available flash on the device.
2019-10-10 20:21:07 +02:00
Glenn Ruben Bakke 60b0b69f20 nrf: Add tinyusb support for nrf52840.
Add nrf-port finyusb driver files. USB CDC can be activated
by board configuration files using the MICROPY_HW_USB_CDC.

Updating BLE driver, Makefile, nrfx-glue and main.c to plug
in the tinyusb stack.
2019-10-10 20:21:07 +02:00
Glenn Ruben Bakke 1571120dc2 nrf/device: Correct SPIM3 IRQ handler entry for nrf52840. 2019-10-10 20:21:07 +02:00
Damien George 2863dcdf4f nrf: Add support to activate MICROPY_PY_SYS_STDFILES.
Fixes issue #5162.
2019-10-08 16:38:04 +11:00
roland van straten a069340c1e nrf/main: Update the way the LED is used on startup.
In case of LED1 being present, do a short blink during startup
instead of turning it on and leave it on.
2019-10-02 22:17:54 +02:00
roland van straten 226399bcef nrf/led: Expose public API for LED manipulation.
Aligned implementation with the STM32 port.
Added empty functions to be used when no LED is available.
2019-10-02 22:09:43 +02:00
Glenn Ruben Bakke cf383412ef nrf/flash: Update flash driver to use nrfx_nvmc driver.
The the nrfx driver is aware of chip specific registers, while
the raw HAL abstraction is not. This driver enables use of NVMC
in non-secure domain for nrf9160.
2019-10-02 21:28:34 +02:00
Glenn Ruben Bakke c561ae61a1 nrf/uart: Add support for UARTE (EasyDMA). 2019-10-02 21:20:56 +02:00
Glenn Ruben Bakke 02a8c31eef nrf/temp: Move module configuration guard.
This patch moves the check for MICROPY_PY_MACHINE_TEMP to come
before the inclusion of nrf_temp.h. The nrf_temp.h depends on
the NRF_TEMP_Type which might not be defined for all nRF devices.
2019-10-02 21:15:48 +02:00
Glenn Ruben Bakke d2e730b727 nrf/i2c: Add support for TWIM (EasyDMA). 2019-10-02 20:42:06 +02:00
roland van straten ac112f88d0 nrf/boards: Add board definition for uBlox Nina B1 series BLE modules. 2019-09-17 11:33:48 +10:00
Jim Mussared 1f52a6f8e4 nrf/boards: Add Particle Xenon board configuration (an nRF52840). 2019-09-05 22:56:05 +10:00
Jim Mussared d36fc4682e nrf/Makefile: Add support for flashing with a Black Magic Probe.
Also rename "flash" target to "deploy" to match other ports (but provide
"flash" as an alias for backwards compatibility).
2019-09-05 22:56:05 +10:00
Jim Mussared 353ed7705f nrf/boards/make-pins.py: Fix gen of board pins to use correct index.
It was previously not taking into account that the list of pins was sparse,
so using the wrong index.  The boards/X/pins.csv was generating the wrong
data for machine.Pin.board.

As part of this fix rename the variables to make it more clear what the
list contains (only board pins).
2019-09-05 22:52:24 +10:00
Damien George 9e90e2528b nrf/machine/adc: Fix mapping of ADC channel to pin. 2019-09-05 22:13:04 +10:00
Damien George c7fb93b844 nrf/machine/adc: Allow to pass a Pin object in to ADC constructor. 2019-09-05 22:13:04 +10:00
Damien George b766a6971e nrf: Add ADC channel mapping to alt function table. 2019-09-05 22:13:04 +10:00
Damien George 9cad134a2f nrf/machine/adc: Add ADC.read_u16() method. 2019-09-05 22:13:04 +10:00
Damien George 1fe1ff935b nrf: Clean up source by removing tabs, trailing spaces, non-ASCII chars. 2019-08-28 13:34:45 +10:00
Damien George af20c2ead3 py: Add global default_emit_opt variable to make emit kind persistent.
mp_compile no longer takes an emit_opt argument, rather this setting is now
provided by the global default_emit_opt variable.

Now, when -X emit=native is passed as a command-line option, the emitter
will be set for all compiled modules (included imports), not just the
top-level script.

In the future there could be a way to also set this variable from a script.

Fixes issue #4267.
2019-08-28 12:47:58 +10:00
Damien George 497683b315 gitignore: Put build-*/ pattern in top-level gitignore file. 2019-08-16 00:08:08 +10:00
Glenn Ruben Bakke d889def06b nrf/led: Adjust how board LEDs are defined.
Change static LED functions to lowercase names, and trim down source code
lines for variants of MICROPY_HW_LED_COUNT.  Also rename configuration for
MICROPY_HW_LEDx_LEVEL to MICROPY_HW_LEDx_PULLUP to align with global PULLUP
configuration.
2019-06-25 16:02:31 +10:00
Damien George 9cf1cbb057 nrf/mphalport: Use wfi to save power while waiting at the UART REPL. 2019-05-22 12:47:48 +10:00
Damien George 456c89f749 nrf/uart: Make UART print output something, and add write method. 2019-05-22 12:47:48 +10:00
Damien George 50d5114fcd nrf/mpconfigport.h: Enable MICROPY_KBD_EXCEPTION by default. 2019-05-22 12:47:48 +10:00
Damien George 302ffdba7f nrf/uart: Change UART driver to be non-blocking and use IRQs.
As part of this, ctrl-C is now able to interrupt a running program.
2019-05-22 12:47:19 +10:00
Glenn Ruben Bakke d80abd035e nrf/nrfx_glue: Adapt to nrfx v.1.7.1.
Defining NRFX_STATIC_ASSERT macro to be empty, but available
to nrfx.
2019-05-21 23:16:20 +02:00
Damien George bb29bde102 nrf/machine/i2c: Update to support new C-level I2C API. 2019-05-20 15:04:29 +10:00
Damien George 7e21cf723a nrf: Change types to size_t for all uses of mp_obj_str_get_data. 2019-05-13 12:39:56 +10:00
Nguyen Hoan Hoang 9a6f6fd68d nrf/boards: Add support for BLYST Nano module based boards.
- IBK-BLYST-NANO: Breakout board
- IDK-BLYST-NANO: DevKit board with builtin IDAP-M CMSIS-DAP Debug JTAG,
  RGB led
- BLUEIO-TAG-EVIM: Sensor tag board (environmental sensor
  (T, H, P, Air quality) + 9 axis motion sensor)

Also, the LED module has been updated to support individual base level
configuration of each LED. If set, this will be used instead of the
common configuration, MICROPY_HW_LED_PULLUP. The new configuration,
MICROPY_HW_LEDX_LEVEL, where X is the LED number can be used to set
the base level of the specific LED.
2019-05-02 22:33:44 +02:00
Damien George 0646e607b5 ports: Convert to use pyexec_file_if_exists() to execute boot/main.py.
The stm32 and nrf ports already had the behaviour that they would first
check if the script exists before executing it, and this patch makes all
other ports work the same way.  This helps when developing apps because
it's hard to tell (when unconditionally trying to execute the scripts) if
the resulting OSError at boot up comes from missing boot.py or main.py, or
from some other error.  And it's not really an error if these scripts don't
exist.
2019-04-26 15:22:14 +10:00
Glenn Ruben Bakke 1f5d945afa nrf/Makefile: Update to match latest oofatfs version.
See corresponding commit b5f33ac2cb
2019-04-01 19:22:25 +02:00
Glenn Ruben Bakke e0c6dfe90a nrf/readme: Add section about LTO.
Adding section about on how to disable use of the linker flag
-flto, by setting the LTO=0 argument to Make. Also, added a
note on recommended toolchains to use that works well with
LTO enabled.
2019-03-19 16:59:18 +01:00
Glenn Ruben Bakke 696549d2e5 nrf/bluetooth: Deprecate use of SoftDevice s140 v6.0.0.
Removing linker script for nrf52840 s140 v6.0.0 as pca10056
target board now points to the new v6.1.1. Also, removing the
entry from the download_ble_stack.sh script.
2019-03-15 20:50:15 +01:00
Glenn Ruben Bakke a3a266a9c3 nrf/board: Migrate nrf52840 target to new BLE stack.
This patch moves pca10056/nrf52840 target board to use
the new SoftDevice s140 v6.1.1 instead of the legacy v6.0.0.
2019-03-15 20:50:15 +01:00
Glenn Ruben Bakke d3c1436e75 nrf/bluetooth: Add support for SoftDevice s140 version 6.1.1.
Updating download script to fetch the new SoftDevice, and
adding corresponding linker script for the BLE stack.
2019-03-15 20:50:15 +01:00
Glenn Ruben Bakke 1e5e3e3d48 nrf/bluetooth: Deprecate use of SoftDevice s132 v6.0.0.
Removing linker script for nrf52832 s132 v6.0.0 as all target
boards now points to the new v6.1.1. Also, removing the entry
from the download_ble_stack.sh script.
2019-03-15 20:50:15 +01:00
Glenn Ruben Bakke 5f26ef1112 nrf/board: Migrate all nrf52832 targets to new BLE stack.
This patch moves all the nrf52832 target boards to use the
new SoftDevice s132 v6.1.1 instead of the legacy v6.0.0.
2019-03-15 20:50:15 +01:00
Nguyen Hoan Hoang e8ed2dea71 nrf/bluetooth: Add support for SoftDevice s132 version 6.1.1.
Updating download script to fetch the new SoftDevice, and
adding corresponding linker script for the BLE stack.
2019-03-15 20:50:15 +01:00
Damien George b5f33ac2cb ports: Update to work with new oofatfs version. 2019-03-05 15:56:39 +11:00
Stig Bjørlykke c72391c4ce nrf/pwm: Remove superfluous NULL in machine_hard_pwm_instances.
Remove unneeded NULL entry in machine_hard_pwm_instances[] when not
building for NRF52_SERIES.
2019-02-20 22:52:18 +01:00
Stig Bjørlykke 6ca03fe8bd nrf/readme: Update make flash command when defining board.
Update the "make flash" command sample to include BOARD parameter
when building for a specific target board.
2019-02-20 22:34:08 +01:00
Glenn Ruben Bakke ca2bb66127 nrf/bluetooth: Resolve compilation warning in ble_drv.c.
This patch makes sure that the char_data.props is first
assigned a value before other flags are OR'd in.
Resolves compilation warning on possible unitialized variable.
2019-02-20 07:25:51 +01:00
Glenn Ruben Bakke 0c6f5bc529 nrf/bluetooth: Improve advertisment behavior for nrf52 targets.
This patch makes sure that advertisment data is located in
persistent static RAM memory throughout the advertisment.

Also, setting m_adv_handle to predifined
BLE_GAP_ADV_SET_HANDLE_NOT_SET value to indicate first time
usage of the handle. Upon first advertisment configuration
this will be populated with a handle value returned by the
stack (s132/s140).
2019-02-20 07:25:51 +01:00
Glenn Ruben Bakke ee3a01f25c nrf/readme: Update link to nrfjprog download.
After new layout of nordicsemi.com the direct links to
command line tools (nrfjprog) has changed to become dynamic.
This patch removes the old direct links to each specific OS
variant and is replaced with one single link to the download
landing page instead.
2019-02-20 07:13:36 +01:00
Damien George 6e30f96b0b ports: Convert legacy uppercase macro names to lowercase. 2019-02-12 14:54:51 +11:00
Stig Bjørlykke 98f790b03a nrf/timer: Fix disabling Timer 1 when using soft PWM.
Don't exclude the Timer instance 1 entry from machine_timer_obj[] when
using soft PWM. The usage is already checked when creating the Timer,
so just create an empty entry.
2019-02-02 11:15:52 +01:00
Stig Bjørlykke 63eae33b7b nrf/ticker: Remove duplicate NRFX_IRQ_PRIORITY_SET. 2019-01-31 17:50:10 +11:00
Ayke van Laethem e8678cd1c9 nrf/pin: Print pull information in Pin.__str__. 2019-01-31 17:38:13 +11:00
Ayke van Laethem 2d293873a6 nrf/pin: Cleanup Pin.__str__ to print relevant information.
Code size change:
nrf51: -44
nrf52: -52
2019-01-31 17:31:58 +11:00
Ayke van Laethem 4e1c2fc831 nrf: Shrink "<peripheral> does not exist" error messages.
Code size reductions:
nrf51: -132
nrf52: -188
2019-01-31 17:26:26 +11:00
Ayke van Laethem 1ba962ff57 nrf/uart: Remove unused machine.UART() parameters.
If needed these parameters can be added back and made functional one at a
time.  It's better to explicitly not support them than to silently allow
but ignore them.
2019-01-31 17:18:23 +11:00
Ayke van Laethem a293fa3d6d nrf/uart: Use formula instead of switch for baudrate calculation.
This saves a bit of code:
nrf51: -176
nrf52: -152
2019-01-31 17:06:59 +11:00
Damien George d5d060ead9 nrf/modmachine: Rename machine.sleep to machine.lightsleep. 2019-01-30 14:15:38 +11:00
Glenn Ruben Bakke 9e5768a6db nrf/bluetooth: Update BLE stack download script.
Due to new webpages at nordicsemi.com, the download links
for Bluetooth LE stacks were broken.

This patch updates the links to new locations for the current
targets.
2018-12-10 20:42:06 +01:00
Glenn Ruben Bakke 11bc38d55f nrf/bluetooth: Set GAP_ADV_MAX_SIZE to 31 (s132/s140).
For s132 and s140, GAP_ADV_MAX_SIZE was currently set to
BLE_GATT_ATT_MTU_DEFAULT, which is 23. The correct value
should have been 31, but there are no define for this in
the s132/s140 header files as for s110.

Updating define in ble_drv.c to the correct value of 31.
2018-10-11 23:38:11 +02:00
Ayke van Laethem e755bd4932
nrf/uart: Fix UART.writechar() to write just 1 byte. 2018-08-02 22:21:24 +02:00
Ayke van Laethem 60a05485cb
nrf/uart: Remove unused UART.char_width field.
Also, clean up some code.
Code size change:
nrf51: -24
nrf52: -28
2018-08-02 22:18:16 +02:00
Stig Bjørlykke 2cf2ad943e nrf: Use separate config for each PWM instance.
The hard_configs table has entries for each PWM instance. Use them.
2018-08-02 20:36:18 +02:00
Stig Bjørlykke 0c161691b4 nrf: Correct index checking of ADC/PWM/RTCounter instances.
Avoid trying to use ADC, PWM and RTCounter instances which is
one past last available, because this will give a HardFault.
2018-08-01 14:56:07 +02:00
Stig Bjørlykke 7f0c5f2ef9 nrf: Enable all PWM, RTC and Timer instances for nrf52840.
The NRF52 define only covers nrf52832, so update the define checks
to use NRF52_SERIES to cover both nrf52832 and nrf52840.

Fixed machine_hard_pwm_instances table in modules/machine/pwm.c

This enables PWM(0) to PWM(3), RTCounter(2), Timer(3) and Timer(4),
in addition to NFC reset cause, on nrf52840.
2018-08-01 14:36:07 +02:00
Stig Bjørlykke b6e49da407
nrf/uos: Add mbfs __enter__ and __exit__ handlers.
This will make 'with open('file', 'r') as f:' work by properly close
the file after the suite is finished.
2018-08-01 14:12:34 +02:00
Ayke van Laethem 7067ac3573 nrf/drivers/flash: Fix incorrect page alignment check. 2018-07-23 16:12:33 +10:00
roland 6a31dcd638 nrf: Update nrfjprog links to allow to download any version.
Instead of downloading "a" version, these links point to history from where
you can download the verson you like.
2018-07-23 16:11:40 +10:00
Damien George 6ac4304284 nrf/boards/microbit: Use MICROPY_PY_BUILTINS_FLOAT to detect FP support.
This works for both single and double precision float.
2018-07-20 14:11:28 +10:00
Damien George 9addc38af4 nrf: Properly use (void) instead of () for function definitions. 2018-07-20 14:11:28 +10:00
Damien George 55632af70a nrf/Makefile: Make sure dependencies for pins_gen.c are correct. 2018-07-20 14:11:28 +10:00
Ayke van Laethem 8df342d330 nrf: Include $(SRC_MOD) in the build.
Also, remove the unused $(SRC_LIB).
2018-07-19 00:35:24 +10:00
Ayke van Laethem 2f0f4fdcd3
nrf: Use mp_raise_ValueError instead of nlr_raise(...)
Saves 60 bytes on the nRF52 with SD disabled. There will be a bigger
saving with SD enabled and/or on the micro:bit board.
2018-07-18 15:25:17 +02:00
Glenn Ruben Bakke 264d80c84e nrf/drivers: Add license text to ticker.h and softpwm.h.
As per the LICENSE and AUTHORS files from the original source of these
header files.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke ea00717a57 nrf: Compile nlr objects with -fno-lto flag
To prevent over-optimizations of nlr and nlrthumb when -flto is used
the flag -fno-lto is set on these modules during compilation.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 14d257c66b nrf: Add explicit make flag for oofatfs
Adding MICROPY_FATFS as makefile flag in order to explicitly
include oofatfs files to be compiled into the build.

The flag is set to 0 by default. Must be set in addition to
MICROPY_VFS and MICROPY_VFS_FAT in mpconfigport.h.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 50ee908896 nrf/bluetooth: Replace BLE REPL (WebBluetooth) URL
Updating URL of the WebBluetooth/PhysicalWeb from
https://glennrub.github.io/webbluetooth/micropython/repl to
https://aykevl.nl/apps/nus/.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke cf58ef27af nrf: Quick-fix on const objects with open array dimension in objtuples.
Temporarly solving the issue of
"differ from the size of original declaration [-Werror=lto-type-mismatch]
until linker is fixed in upcomming release of gcc.

Bug is reported by others, and will be fixed in next version of arm-gcc.
However, this patch makes it possible to use modmusic and modimage
with current compilers.

Alternativly, the code can be compiled with LTO=0, but uses valuable 9K
more on this already squeezed target (microbit).
2018-07-18 17:12:26 +10:00
Ayke van Laethem 0e5f8425ea nrf/boards: Check for stack/heap size using an assert.
The main effect of this is that the .bss is now accurate and doesn't
include the stack and minimum heap size.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 7144e87ced nrf/bluetooth: Add support for s132/s140 v6, remove s132 v2/3/5
Support added for s132/s140 v6 in linker scripts and boards.
Support removed for s132 v2/3/5.

Download script updated to fetch new stacks and removed the
non-supported ones.

ble_drv.c updated to only handle s110 v8, and s132/s140 v6.

ubluepy updated to continue scanning after each individual scan
report reported to the module to keep old behaviour of the
Scanner class.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke db67a5000f nrf: Generalize feather52 target
This patch generalize the feather52 target to be a board without
an in-built Bluetooth stack or bootloader giving all flash memory to
micropython code.

This way the feather52 target can run any supported Bluetooth LE
stack the port supports for other nrf52832 targets. Hence, this
make Makefiles/linker scripts and BLE driver support easier
to maintain in the future.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke b7ce2f1460 nrf: Add support for reading output pin state
Current adoption on top of nrfx only reads the GPIO->IN register.
In order to read back an output state, nrf_gpio_pin_out_read has
to be called.

This patch concatinate the two read functions such that, if
either IN or OUT register has a value 1 it will return this,
else 0.

Updating lib/nrfx submodule to latest version of master to get
the new GPIO API to read pin direction.
(nrfx: d37b16f2b894b0928395f6f56ca741287a31a244)
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 6011441342 nrf: Move pyb module to boards module
Cleaning up use of "pyb" module.
Moving the file to a new folder and updating the
makefile accordingly. New module created called
"board" to take over the functionality of the legacy
"pyb" module.

Updating outdated documentation referring to pyb.Pin,
to now point to machine.Pin.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 4a323f8b80 nrf/nrfx_config: Move back nrf52832 to use non-EasyDMA SPI
As EasyDMA variant of SPI(M) might clock out an additional byte
in single byte transactions this patch moves the nrf52832 to
use SPI and not SPIM to get more stable data transactions.

Ref: nrf52832 rev2 errata v1.1, suggested workaround is:
"Use the SPI module (deprecated but still available) or
use the following workaround with SPIM ..."

Current nrfx SPIM driver does not contain this workaround,
and in the meanwhile moving back to SPI fixes the issue.

Also, tabbing the nrfx_config.h a bit to make it more readable.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 5925004da3 nrf/modules/machine/spi: Move enable-guard to prevent wrong includes
This patch moves the check of SPI configuration before
including any SPI header files. As targets might disable SPI
support, current code ends up in including SPIM if not SPI
is configured. Hence, this is why the check whether the module is
enabled should be done before including headers.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 774638e2a9 nrf/boards/feather52: Move phony targets to main Makefile
dfu-gen .PHONY target is run unconditionally as first build
target when included, and might fail if the hex file is not
yet generated.

To prevent this, the dfu-gen and dfu-flash targets are moved
to the main Makefile and only exposed if feather52 is the
defined BOARD.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke d3311681a9 nrf: Enable micro:bit FS by default
Update configuration define from
MICROPY_HW_HAS_BUILTIN_FLASH to MICROPY_MBFS.

MICROPY_MBFS will enable the builtin flash as
part of enabling the micro:bit FS.
2018-07-18 17:12:26 +10:00
Ayke van Laethem a4615672d4 nrf/modules/uos/microbitfs: Remove unused uos_mbfs_mount.
It throws an error in GCC 6.3.
2018-07-18 17:12:26 +10:00
Ayke van Laethem 635064c432 nrf/modules/uos/microbitfs: Fix errno defines.
Probably broken after the recent Clang fixes to errno.h.
2018-07-18 17:12:26 +10:00
Ayke van Laethem 1aa9ff9141 nrf/mphalport: Remove divided assembly syntax. 2018-07-18 17:12:26 +10:00
Ayke van Laethem fb17105183 nrf: Remove useless #include <errno.h>. 2018-07-18 17:12:26 +10:00
Ayke van Laethem 17769452d4 nrf/modules/machine/adc: Don't compare -1 to an unsigned number.
Clang warns about this.
2018-07-18 17:12:26 +10:00
Ayke van Laethem 4111206bd5 nrf/Makefile: Refine dead-code elimination parameters.
Clang warns about useless -Wl,--gc-sections passed in CFLAGS.
2018-07-18 17:12:26 +10:00
Ayke van Laethem ab72b5b69c nrf/Makefile: Use C11 instead of Gnu99.
Some constructs require C11 which GCC silently allows.
2018-07-18 17:12:26 +10:00
Ayke van Laethem a6ae950b75 nrf/Makefile: Remove -fstack-usage.
-fstack-usage is not supported by Clang and old GCC versions.
2018-07-18 17:12:26 +10:00
Ayke van Laethem 5fdebe62d3 nrf/Makefile: use "standard" GCC -fshort-enums instead of --short-enums.
Clang understands only -fshort-enums, not --short-enums. As
--short-enums isn't even mentioned in the gcc man page, I think this
alias exists more for backwards compatibility.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 03da4e33fb nrf/bluetooth: Fixes for s132 v5 BLE stack
Removing unused nrf52832_512k_64k_s132_5.0.0.ld.

Adding new linker script s132_5.0.0 following new
linker script scheme.

Updating ble_drv.c to handle de-increment of
outstanding tx packets on hvx for s132 v5.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 58ec23fdf7 nrf/modules/machine/adc: Fix to make adc.c compile for nrf51 targets 2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 24258cf0b9 nrf: Return immediatly from mp_hal_delay_us if 0us is given
After nrfx 1.0.0 a new macro was introduced to do a common
hardware timeout. The macro function triggers a counter of
retries or a timeout in us. However, in many cases, like in
nrfx_adc.c the timeout value is set to 0, leading to a infinite
loop in mp_hal_delay_us. This patch prevents this from happening.

Path of error:
nrfx_adc.c -> NRFX_WAIT_FOR -> NRFX_DELAY_US -> mp_hal_delay_us.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 63c748bfcc nrf/spi: Allow for external use of new and transfer function.
This patch also opens up for all arguments to be set as positional
arguments such that an external user of the make_new function can set
provide all parameters as positional arguments.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 434bd568fe nrf/adc: Allow for external use of new and value read function. 2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 3209a13bf5 nrf/modules: Align method to resolve pin object
machine/i2c already uses mp_hal_get_pin_obj which
points to pin_find function in order to locate correct
pin object to use.

The pin_find function was recently updated to also
being able to locate pins based on an integer value,
such that pin number can be used as argument to object
constructors.

This patch modfies and uniforms pin object lookup for
SPI, music and pwm.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 0f7da42c75 nrf/modules/random: Rename port config for RNG
Renaming config for enabling random module with hw
random number generator from MICROPY_PY_HW_RNG to
MICROPY_PY_RANDOM_HW_RNG to indicate which module it
is configuring.

Also, disabling the config by default in mpconfigport.h.

Adding the enable of RNG in all board configs.

Moving ifdef in modrandom, which test for the config being
set, earlier in the code. This is to prevent un-necessary
includes if not needed.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke f4382a2885 nrf/boards/wt51822_s4at: Fixes after nrfx and Pin IRQ introduction 2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 72aacef02e nrf/boards: Remove unused defines from board config headers 2018-07-18 17:12:26 +10:00
Ayke van Laethem 65f8d9a643 nrf/gccollect: Use the SP register instead of MSP.
Using the current stack pointer directly saves 8 bytes of code.
We need the *current* register anyway for GC (which is always MSP).
2018-07-18 17:12:26 +10:00
Ayke van Laethem 013c23712c nrf/drivers/bluetooth/ble_drv: Increase max transfers in progress.
Increase the maximum number of queued notifications from 1 to 6. This
massively speeds up the NUS console - especially when printing large
amounts of text. The reason is that multiple transfers can be done in a
single connection event, in ideal cases 6 at a time.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 67fd67f549 nrf/modules/machine/spi: SPIM (EasyDMA) backend for nrf52x
This patch moves all nrf52 targets to use SPIM backend
for SPI which features EasyDMA. The main benefit of doing
this is to utilize the SPIM3 on nrf52840 which is
EasyDMA only peripheral.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 6e8a605500 nrf/modules/machine/pin: Add support for IRQ on Pin's
This patch ads irq method to the pin object. Handlers
registered in the irq method will be kept as part of the
ROOT_POINTERS.

In order to resolve which pin object is the root of the
IRQ, the pin_find has been extended to also be able to
search up Pin objects based on mp_int_t pin number.
This also implies that the Pin.new API is now also supporting
creation of Pin objects based on the integer value of the
pin instead of old style mandating string name of the Pin.

All boards have been updated to use real pin number from
0-48 instead of pin_Pxx for UART/SPI and music module pins.

UART/SPI/modmusic has also been updated to use pin number
provided directly or look up the Pin object based on the
integer value of the pin (modmusic).

Pin generation has been updated to create a list of pins, where
the board/cpu dicts are now refering to an index in this list
instead of having one const declaration for each pin. This new
const table makes it possible to iterate through all pins generated
in order to locate the correct Pin object.
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 864f671744 nrf: Remove port member from Pin object
In order to be able to support GPIO1 port on nrf52840
the port has been removed from the Pin object.

All pins on port1 will now be incrementally on top of
the pin numbers for gpio0. Hence, Pin 1.00 will become
P32, and Pin 1.15 will become P47.

The modification is done to address the new gpio HAL
interface in nrfx, which resolves the port to be
configured base on a multiple of 32.

The patch also affects the existing devices which does
not have a second GPIO port in the way that the
port indication A and B is removed from Pin generation.
This means that the port which was earlier addressed
as PA0 is now P0, and PA31 is P31.

Also, this patch removes the gpio member which earlier
pointed to the perihperal GPIO base address. This is not
needed anymore, hence removed.
2018-07-18 17:12:26 +10:00
Ayke van Laethem 2de65dda22 nrf: Make linker scripts more modular.
With all the variation in chips and boards it's tedious to copy and
redefine linker scripts for every option. Making linker scripts more
modular also opens up more possibilities, like enabling/disabling the
flash file system from the Makefile - or even defining it's size from a
Makefile argument (FS_SIZE=12 for a 12kB filesystem if tight on space).
2018-07-18 17:12:26 +10:00
Ayke van Laethem 375bc31f4b nrf: Enable -g flag by default.
This does not affect binary output, but makes debugging a whole lot
easier.
2018-07-18 17:12:26 +10:00
Ayke van Laethem 1949719e1d nrf/Makefile: Fix .PHONY target.
It must be in uppercase.
2018-07-18 17:12:26 +10:00
Ayke van Laethem 57ca1ecf01 nrf: Fix NUS console when using boot.py or main.py. 2018-07-18 17:12:26 +10:00
glennrub 002f7d1ad7 nrf: Replace custom-HAL with nrfx-HAL
Summarized this squashed PR replaces the hal/ folder in the port. This has been replaced the official
HAL layer from Nordic Semiconductor; https://github.com/NordicSemiconductor/nrfx.

A Git submodule has been added under lib/nrfx, for the nrfx dependency.

The drivers / modules has been updated to use this new HAL layer; nrfx at v1.0.0.

Also, header files and system files for nrf51/nrf52x chip variants has been deleted from the device/ folder, only keeping back the startup files written in C. All other files are now fetched from nrfx.

3 new header files in the ports/nrf/ folder has been added to configure nrfx (nrfx_config.h), logging (nrfx_log.h) and glue nrfx together with the drivers and modules from micropython (nrfx_glue.h).

The PR has been a joint effort from @aykevl (Ayke van Laethem) and @glennrub.

For reference, the commit log will be kept to get an overview of the changes done:

* ports/nrf: Initial commit for moving hal to Nordic Semiconductor BSD-3 licensed nrfx-hal.

* ports/nrf: Adding nrfx, Nordic Semiconductor BSD-3 hal layer, as git submodule checked out at lib/nrfx.

* ports/nrf/modules/machine/uart: Fixing bug which set hwfc to parity excluded, always resulting in no flow control, hence corrupted output. Also adding an extra loop on uart_tx_char to prevent any tx when any ongoing tx is in progress.

* ports/nrf/i2c: Moving I2C over to nrfx driver.

* ports/nrf/modules/machine/i2c: Alignment. Renaming print function param 'o' to 'self_in'

* ports/nrf/spi: Updating SPI machine module to use nrfx drivers.

* ports/nrf: Renaming modules/machine/rtc.c/.h to rtcounter.c/.h to not confuse the peripheral with Real-Time Clock:

* ports/nrf: Updating various files after renaming machine module RTC to RTCounter.

* ports/nrf: Renaming RTC to RTCounter in modmachine globals dict table. Also updating object type name to reflect new module name.

* ports/nrf: Fixing leftovers after renaming rtc to rtcounter.

* ports/nrf: Early untested adoption of nrfx_rtc in RTCounter. Untested.

* nrf/modules/machine/i2c: Improve keyword argument handling

* ports/nrf/modules/temp: Updating Temp machine module to use nrfx defined hal nrf_temp.h. Moving logic of BLE stack awareness to machine module.

* ports/nrf/boards/pca10040: Enable machine Temp module.

* nrf/modules/machine/rtcounter: Remove magic constants.

* ports/nrf: Adding base support for nrfx module logging. Adding option to disable logging of UART as it might log its own setup over UART while the peripheral is not yet set up. Logging of UART could make sense if other transport of log is used.

* ports/nrf: updating nrfx_log.h with more correct parenthisis on macro grouping.

* ports/nrf: Updating nrfx logging with configuration to disable logging of UART module. The pattern can be used to turn off other modules as well. However, for now UART is the only module locking itself by logging before the peripheral is configured. Logging is turned off by default, can be enabled in nrfx_config.h by setting NRFX_LOG_ENABLED=1.

* ports/nrf/modules/random: Updating modrandom to use nrfx hal for rng. Not using nrfx-driver for this peripheral as its blocking mode would do the trick on RNG. Moving softdevice aware code from legacy hal to modrandom.c.

* nrf: Enable Peripheral Resource Sharing.

This enables TWI and SPI to be enabled at the same time.

* nrf/Makefile: Define MCU sub variant (e.g. NRF51822/NRF51422)

* nrf: Port TIMER peripheral to nrfx HAL.

* nrf/modules/machine/uart: Optimize UART module

For a nRF51, this results in a size reduction of:
.text: -68 bytes
.data: -56 bytes

* nrf/modules/machine/uart: Don't use magic index numbers.

* nrf/modules/machine/uart: Fix off-by-one error.

For nrf51:
.text: -40 bytes

* nrf/modules/machine/rtcounter: Update for nrfx HAL.

* nrf/modules/machine/i2c: Reduce RAM consumption.

Reductions for the nrf51:
flash: -108 bytes
RAM:   -72 bytes

* nrf/mpconfigport: Avoid unnecessary root pointers.

This saves 92 bytes of RAM.

* nrf: Support SoftDevice with nrfx HAL.

* nrf: Add NVMC peripheral (microbitfs) support.

There is no support yet for a SoftDevice.

It also fixes a potentially serious bug in start_index generation.

* nrf/modules/machine/spi: Optimize SPI peripheral.

nrf51:
text: -340 bytes
data: -72  bytes

nrf52:
text: -352 bytes
data: -108 bytes

* nrf/modules/random: Forgot to commit header file.

* nrf: Make nrfx_config.h universal for all boards.

* nrf: Use SoftDevice API for flash access when built for SD

* nrf/drivers/bluetooth: Remove legacy HAL driver includes.

These were not used anymore so can be removed.

* ports/nrf/microbit: Port microbit targets to nrfx HAL

Initial port of microbit modules to use nrfx HAL layer.
Tested display/image and modmusic on micro:bit to verify that
softpwm and ticker for nrf51 is working as expected.

Changing IRQ priority on timer to priority 2, as 1 might collide if
used side by side of SD110 BLE stack.

The patch reserves Timer1 peripheral compile time. This is not ideal
and should be resolved in seperate task.

* nrf/boards/microbit: Remove custom nrfx_config.h from microbit target, adding disablement of timer1 if softpwm is enabled.

* nrf/adc: Update ADC module to use nrfx

* nrf/modules/machine/pwm: Updating machine PWM module to use nrfx HAL driver.

examples/nrf52_pwm.py and examples/nrf52_servo.py tested on pca10040.

* nrf: Removing hal folder and boards nrf5x_hal_conf.h headers.

* nrf/nrfx_glue: Adding direct NVIC access for S110 BLE stack

If SoftDevice s110 has not yet been initialized, the IRQ will not be forwarded to
the application using the sd_nvic* function calls. Hence, direct access to cmsi
nvic functions are used instead if SoftDevice is not enabled.

* nrf/drivers/ticker: Setting IRQ priority 3 on Timer1

SoftDevice fails to initilize if Timer1 has been configured to priority
level 2 before enabling the SD. The timer is set to priority 1, higher than BLE
stack in order to provide better quality of music rendering when used with the
music module. This might be too high, time will show.

* nrf/examples: Updating ubluepy_temp after moving RTCounter to nrfx.

* nrf: delete duplicate files from device folder which can be located in nrfx/mdk.

* nrf/Makefile: Fetch system files from nrfx.

Testing on each device sub-variant to figure out which system file to
use. Reason for this is that nrf52.c is actually defining nrf52832.

Removing NRF_DEFINES parameter setting the device in use into the
same sub-variant test, as NRF52 is unique to nrf52832 when using nrfx.
Without this exclusion of -DNRF52 in compilation for nrf52840, the
device will be interpreted as a nrf52, hence nrf52832.

Also, changing name on variable SRC_NRF_HAL to SRC_NRFX_HAL to
explicitly tell the origin of the file.

* nrf: Updating device #ifdefs to be more open to non-nrf51 targets.

* nrf/modules/machine/uart: Removing second instance of UART for nrf52840 as it only has one non-DMA variant.

* nrf/device: Removing system files as these are now used from nrfx/mdk

* nrf: Moving startup files in device one level up as there is no need for deep hierarchy.

* nrf: Use NRF52_SERIES defined in nrfx/mdk/nrf.h as define value when testing for both nrf52(832) and nrf52840 variants.

* nrf/modules/machine/uart: Enable UART RX by default

Enable rx by default after intiialization of the peripheral.
Else, the nrfx driver will re-enable rx for each byte read
on uart REPL, clearing the EVENT_RXDRDY before second byte,
which again will make second byte get lost and read will get stuck.

This happens if the bytes are transmitted nrf(51) while still
processing the previous byte. Not seen on nrf52, but should
also become an issue at higher speeds.

This patch sets rx to always be enabled. Hence, not clearing the event
between read bytes, and it will be able to detect next byte recieved
upon finishing the first.

* nrf/modules/machine/timer: Fixing defines excluding Timer1 if ticker/softpwm is used.

* nrf: Switching import form mpconfigboard.h to mpconfigport.h in nrfx_config.h as mpconfigboard.h might define default values for defines not set by board specific header.

* nrf/modules/machine/i2c: nrfx integration fixes

Increasing speed to 400K.

Returning Address NACK's as MP error code; MP_ENODEV.

Returning MP_ETIMEOUT on all other error codes from TWI nrfx driver
except the ANACK.

Enabling and disabling the TWI peripheral before and after each transaction.

* nrf/examples: Updating ssd1306_mod.py to split framebuffer transfer into multiple chunks

* nrf/modules/machine/i2c: Return MP_EIO error if Data NACK occurs.

* nrf: Addressing review comments.

* nrf: Updating git submodule and users to nrfx v1.0.0.

* nrf/modules/machine/adc: Update adc module to follow v1.0.0 nrfx API.

* nrf/modules/machine/spi: Implement init and deinit functions

Extending SPI objects with a config member such that
configuration can be kept between new() and init().

Moving initialization done in new() to common init
function shared between the module functions.

If SPI is already configured, the SPI peripheral will
be uninitialized before initalized again.

Adding logic to handle initialization of polarity and
phase. As well, updating default speed to 1M from 500K.

* nrf/modules/machine: Removing unused nrfx includes in machine module header files
2018-07-18 17:12:26 +10:00
Glenn Ruben Bakke 62931398d7 nrf/boards/microbit/modules: Initialize variable in microbit_sleep.
When compiling for microbit with LTO=0, a compiler error occurs due to
'ms' variable in the microbit_sleep function has not been initialized.

This patch initialize the variable to 0.
2018-07-18 17:12:25 +10:00
Ayke van Laethem 3cdecf90e6 nrf: Make LTO configurable via Makefile flag.
LTO messes up debuggability and may cause some other issues.
Additionally, it does not always result in reduced code size.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke c486127378 nrf: Improve include of boardmodules.mk
Removing shell commands for checking if boardmodules.mk exists
under boards/<BOARD>/modules folder before including it.

This patch does the equivalent to previous test without using
shell commands. Hence, including the .mk if it exists.

Reference:
https://stackoverflow.com/questions/8346118/check-if-a-makefile-exists-before-including-it
2018-07-18 17:12:25 +10:00
Ayke van Laethem 4231d4311f nrf: Fix stack size in ld script and enable MICROPY_STACK_CHECK.
The nrf51x22_256k_16k_s110_8.0.0.ld had a stack size of only 1kB, which
is way too low. Additionally, the indicated _minimum_stack_size (set at
2kB for that chip) isn't respected.

This commit sets the heap end based on the stack size (heap end = RAM
end - stack size) making it much easier to configure.

Additionally, the stack/heap size of nrf52 chips has been set to a more
sane value of 8kB.
2018-07-18 17:12:25 +10:00
Ayke van Laethem 987381dfa0 nrf: Make machine.UART optional.
Leave it enabled by default on all targets.

This is only possible when using UART-over-BLE (NUS) instead of the
default hardware peripheral. The flash area saved is quite substantial
(about 2.2KB) so this is useful for custom builds that do not need UART.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke f679ee2092 nrf/drivers/ble_drv: Fixing sd_ble_enable bug for SD s132 v.2.0.1
Feather52 target which is using SD s132 v.2.0.1 cannot compile
due to variable containing RAM start address is not used.

This patch enables the correct sd_ble_enable variant for this SD.
2018-07-18 17:12:25 +10:00
Ayke van Laethem f907139fab nrf/boards/common.ld: Avoid overflowing the .text region.
Similar commit to this one:
6e56e6269f

When .text + .data oveflow available flash, the linker may not show an
error. This change makes sure .data is included in the size calculation.
2018-07-18 17:12:25 +10:00
Ayke van Laethem 4c011e66b4 nrf/modules/machine/pin: Disable pin debug by default.
Saves for the nrf51:
flash: 336 bytes
RAM:     4 bytes
2018-07-18 17:12:25 +10:00
Ayke van Laethem 1b988f1e7d nrf/mpconfigport: Reduce GC stack size for nrf51.
This frees 128 bytes of .bss RAM on the nRF51, at the cost of possibly
more expensive GC cycles. Leave it as-is on the nRF52 as that chip has a
lot more RAM.

This is also done in the micro:bit:
a7544718a7/inc/microbit/mpconfigport.h (L6)
2018-07-18 17:12:25 +10:00
kaasasolut c1cd7e5155 nrf: Only search for frozen files if FROZEN_MPY_DIR is set 2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 725267df09 nrf: Change PYB prefix to MPY 2018-07-18 17:12:25 +10:00
glennrub f8f14bf0c7 nrf: Add support for s132 v5.0.0 bluetooth stack (#139)
* ports/nrf/boards: Adding linker script for nrf52832 using BLE stack s132 v.5.0.0.

* ports/nrf/drivers/bluetooth: Updating makefile to add BLE_API_VERSION=4 if s132 v5.0.0 is used.

* ports/nrf/drivers/bluetooth: Updating BLE stack download script to also download S132 v5.0.0.

* ports/nrf/drivers/bluetooth: Updating ble_drv.c to handle BLE_API_VERSION=4 (s132 v5.0.0).

* ports/nrf/boards: Updating linker script for nrf52832 with s132 v.5.0.0 bluetooth stack.

* ports/nrf/drivers/bluetooth: Removing commented out code in ble_drv.c

* ports/nrf/drivers/bluetooth: Updating define of GATT_MTU_SIZE_DEFAULT for SD132v5 to be defined using the new name defined in the SD headers in a more generic way.

* ports/nrf/drivers/bluetooth: Cleaning up use of BLE_API_VERSION in the ble_drv.c. Also considering s140v6 API, so not all has been changed to >= if API version 3 and 4 in combo is used. New s140v6 will differ on these, and add a new API not compatible with the API for 3 and 4.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 95bd20522a nrf/drivers/bluetooth: Reset evt_len to size of static buffer each iter.
For each iteration of polling BLE events from the Bluetooth LE stack.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke c8fd71612b nrf/boards/microbit: Enable music, display, image, microbit module.
Enabled by default on microbit targets, with or without BLE stack.  Also
enable softpwm to make display and music module compile.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke f5ed40116f nrf: Add if-def around inclusion of nrf_sdm.h in main.
Not all targets are using bluetooth le.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 6062d46170 nrf: Change board module header from board_modules.h to boardmodules.h.
Applicable for targets with board specific modules.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 0d7976deb2 nrf/boards/microbit: Update docs on top level tick low pri callback. 2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 1128aacb69 nrf/boards/microbit: Add temperature back to microbit module.
Increases size by 68 bytes.  Should be considered to be removed as temp
module is already providing this functionality.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke b6d01a7dd1 nrf/boards/microbit/modules: Fix tabbing in modmicrobit.c. 2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 5601fc9397 nrf/boards/microbit: Move microbit target to custom linker script.
To use if BLE stack is enabled.  The custom linker script also set off
space enough to compile in microbitfs+hal_nvmc.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 67b57bebec nrf: Update main.c to init relevant board drivers, if enabled.
If the board has these drivers then they will be initialized:
- softpwm (implicit ticker)
- music module
- board specific module
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke f8ae6b7bfc nrf/modules/music: Remove init of softpwm/ticker upon music module load.
Also update microbit_music_init0 to register low priority ticker callback
for the music module.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 789f8f1c4b nrf/boards/microbit: Update to work with new ticker code.
- Rename microbit_module_init to board_module_init0 which is the generic
  board module init function.
- Add low priority callback registration of display tick handler in the
  module init function.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 91fcde73d2 nrf/drivers/ticker: Rework ticker functions for microbit display/music.
- Rename init function to ticker_init0.
- Implement ticker_register_low_pri_callback (recycle of unused
  set_low_priority_callback function which was unimplemented).
- Add support for registering 2 low pri callbacks.  For now, one intended
  for microbit display, and one for modmusic.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 7c74b7da48 nrf/drivers/softpwm: Rename init function to softpwm_init0. 2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke d76982e382 nrf/boards/microbit: Include modmicrobit.h in board_modules.h.
So that users of the board module can find the init function of the module
implicitly.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 0b504575e2 nrf/boards/microbit: Add modmicrobit.h to expose module init function. 2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 1b241be310 nrf/boards/microbit: Attempt to get working display/images without FP.
And update the API to align with new unary/binary function callback
structures.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 9e090a8783 nrf/boards/microbit: Add framework updates to build micro:bit modules.
Makefile and mpconfigport.h update is generic, and could be used by other
boards to give extra modules which are only for a selected board.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke fbc45bd3f3 nrf/boards/microbit: Update board modules from C++ to C-code.
This aligns implementation with new style structures.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke f3386cfc50 nrf/boards/microbit: Rename display/image files from .cpp to .c ext.
Also rename modmicrobit.h to microbitconstimage.h.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 98ad4107ef nrf/boards/microbit: Add copy of microbit font type from microbit-dal.
Source: https://github.com/lancaster-university/microbit-dal.git
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 7a2e136049 nrf/boards/microbit: Add copy of microbit display and image files.
From micro:bit port repository, https://github.com/bbcmicrobit/micropython
2018-07-18 17:12:25 +10:00
Ayke van Laethem a248db6916 nrf: Option to enable Ctrl-C in NUS console.
Costs 136 bytes on a nRF51822.
2018-07-18 17:12:25 +10:00
Ayke van Laethem 03b8429c0c nrf: Remove default FROZEN_MPY_DIR.
Saves 448 bytes of flash. Can still be enabled using:

    make FROZEN_MPY_DIR=freeze BOARD=foo
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke b493de75f3 nrf: Update usage of mp_obj_new_str by removing last parameter. 2018-07-18 17:12:25 +10:00
Ayke van Laethem fc5d89e29d nrf/drivers/bluetooth: Start advertising after disconnect.
Disconnecting after a connect would not restart advertising, so
reconnecting may get harder.
2018-07-18 17:12:25 +10:00
Ayke van Laethem 2561bcf0c0 nrf/main: Add ampy support.
The ampy tool expects a "soft reboot" line when it does a soft reset.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 2b32333f90 nrf: Use micropython libm to save flash
Using libm from micropython free up about 5.5kb flash on nrf52
targets which have floating point enabled.
2018-07-18 17:12:25 +10:00
Ayke van Laethem d9fb8c2585 nrf/main: Run boot.py and main.py on startup. 2018-07-18 17:12:25 +10:00
Ayke van Laethem 66e39d6a4e nrf/modules/uos/microbitfs: Make OSError numeric.
This saves about 80 bytes of code size.
2018-07-18 17:12:25 +10:00
Ayke van Laethem 8482daced2 nrf/drivers/bluetooth/ble_drv: Don't handle non-events.
When there is a non-BLE event (sd_evt_get), the ble_evt_handler is
invoked anyway even if it returns NRF_ERROR_NOT_FOUND.
2018-07-18 17:12:25 +10:00
Ayke f7facf73f1 nrf: Add micro:bit filesystem.
* ports/nrf: Add micro:bit filesystem.

This filesystem has been copied from BBC micro:bit sources [1] and
modified to work with the nRF5x port.

[1]: https://github.com/bbcmicrobit/micropython/blob/master/source/microbit/filesystem.c

* ports/nrf/modules/uos: Make listdir() and ilistdir() consistent.

This removes the optional direcotry paramter from ilistdir(). This is
not consistent with VFS, but makes more sense when using only the
microbit filesystem.

Saves about 100 bytes.

* ports/nrf/modules/uos: Add code size comment.
2018-07-18 17:12:25 +10:00
Ayke van Laethem fcc1568546 nrf/boards: Update linker scripts.
* Remove FLASH_ISR and merge .isr_vector into FLASH_TEXT. This saves
    some code space, especially on nRF52 devices.
  * Reserve space for nonvolatile storage of data. This is the place for
    a filesystem (to be added).
2018-07-18 17:12:25 +10:00
Ayke van Laethem 83f38a99a9 nrf/hal/hal_nvmc: Fix non-SD code.
The code wasn't tested yet without a SoftDevice.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke a2b4c93e85 nrf/hal/nvmc: Remove pre-compiler error thrown in nvmc.h, if on nrf52.
This has been tested and works.
2018-07-18 17:12:25 +10:00
Ayke van Laethem 7418795fdf nrf: Disable FAT/VFS by default.
Most boards don't have an SD card so it makes no sense to have it
enabled. It can be enabled per board (mpconfigboard.h).
2018-07-18 17:12:25 +10:00
Ayke van Laethem cc158f98fe nrf: Implement NVMC HAL.
This is only a library for flash access. Actual file system support will
be added later.
2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 0487e23842 nrf/boards/arduino_primo: Add missing hal_rng config used by random mod. 2018-07-18 17:12:25 +10:00
Ayke van Laethem 4838b398af nrf: Enable Link-time optimizations 2018-07-18 17:12:25 +10:00
Ayke van Laethem 4e083819f3 nrf: Add compile switch to disable VFS.
This saves about 17kB.
2018-07-18 17:12:25 +10:00
Ayke van Laethem 38afc6553c nrf: Use --gc-sections to reduce code size
This saves about 6-7kB.
2018-07-18 17:12:25 +10:00
Ayke van Laethem a1116771b0 nrf: Add WT51822-S4AT board. 2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 51a679752a nrf: Update Makefile and README.md after moving port to new directory 2018-07-18 17:12:25 +10:00
Glenn Ruben Bakke 9e7cda8890 nrf: Align help.c builtin help text to use correct type. 2018-07-18 17:12:25 +10:00
Daniel Tralamazza e22b943508 nrf: Add new port to Nordic nRF5x MCUs.
This commit is a combination of about 802 commits from the initial stages
of development of this port, up to and including the point where the code
was moved to the ports/nrf directory.  The following is a digest of the
original commits in their original order (most recent listed first),
grouped where possible by author.  The list is here to give credit for the
work and provide some level of traceability and accountability.  For the
full history of development please consult the following repository:

    https://github.com/tralamazza/micropython

Unless otherwise explicitly state in a sub-directory or file, all code is
MIT licensed and the relevant copyright holders are listed in the
comment-header of each file.

Glenn Ruben Bakke <glennbakke@gmail.com>
    ports/nrf: Moving nrf51/52 port to new ports directory
    nrf: Aligning with upstream the use of nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, ...)

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf/modules/random: Backport of microbit random number generator module

    Backport of micro:bit random module.
    Plugged into the port as a general random module for all nrf51/nrf52 targets. Works both with and without Bluetooth LE stack enabled.

    Behavioral change: seed() method has been removed, as the use of RNG peripheral generates true random sequences and not pseudo-random sequences.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf/hal/rng: Adding HAL driver for accessing RNG peripheral

    The driver also takes care of calling the Bluetooth LE stack for random values if the stack is enabled. The reason for this is that the Bluetooth LE stack take ownership of the NRF_RNG when enabled. Tolerate to enable/disable on the fly, and will choose to use direct access to the peripheral if Bluetooth LE stack is disabled or not compiled in at all.

    Driver has been included in the top Makefile, and will not be compiled in unless nrf51_hal_conf.h/nrf52_hal_conf.h defines HAL_RNG_MODULE_ENABLED (1).

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf/boards: Adding Arduino Primo board support (#88)

    * nrf: Adding Arduino Primo board support
    * nrf: Adding arduino_primo to target boards table in readme.md
    * nrf/boards: Activating pyb.LED module for arduino_primo board.
    * nrf/boards: Removing define not needed for arduino_primo

    Updating arduino_primo board mpconfigboard.h. Removing a define
    that was wrongly named. Instead of renaming it, it was removed as
    it was never used.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf: Add support for floating point on nrf52 targets.

    Duplicating pattern for detecting location of libm, libc and libgcc
    from teensy port. Activating MICROPY_FLOAT_IMPL (FLOAT) for nrf52 targets
    and adding libs into the compile. For nrf51 targets it is still set to
    NONE as code grows to much (about 30k).

    Some numbers on flash use if MICROPY_FLOAT_IMPL is set to
    MICROPY_FLOAT_IMPL_FLOAT and math libraries are enabled (lgcc, lc, lm).

    nrf51:
    ======

    without float support:
       text    data     bss     dec     hex filename
     144088     260   30020  174368   2a920 build-pca10028/firmware.elf

    with float support:
       text    data     bss     dec     hex filename
     176228    1336   30020  207584   32ae0 build-pca10028/firmware.elf

    nrf52:
    ======

    without float support:
       text    data     bss     dec     hex filename
     142040     356   36236  178632   2b9c8 build-pca10040/firmware.elf

    with float support:
       text    data     bss     dec     hex filename
     165068    1436   36236  202740   317f4 build-pca10040/firmware.elf

Daniel Tralamazza <daniel@tralamazza.com>
    nrf: add a note for running the nrfjprog tool on Linux, and touch up the make sd comment
    nrf: clean compiler warnings

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf/drivers/bluetooth: Speedup Bluetooth LE REPL.

    Updating mp_hal_stdout_tx_strn_cooked to pass on the whole string
    to mp_hal_stdout_tx_strn instead of passing byte by byte.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf: Use the name MicroPython consistently in comments
    nrf5: Updating readme with BLE REPL

Ben Whitten <ben.whitten@lairdtech.com>
    nrf/boards: Add DVK BL652 from Laird

    To build run 'make BOARD=dvk_bl652 SD=s132'
    To flash with jlink run 'make sd BOARD=dvk_bl652 SD=s132'
    This will remove the existing licences in the bl652

Ben Whitten <ben.whitten@lairdtech.com>
    nrf/drivers/bluetooth: Allow s132 to use LFCLK
    nrf: Add nordic sd folders to the .gitignore

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf/boards: Updating microbit pin mapping for SPI and I2C.
    nrf/boards: Correcting feather52 I2C SDA pin assigned to the board.
    nrf/examples: Update ssd1306 modification example to import correct class.
    nrf/boards: Activate RTC and Timer module and HAL on pca10056. Also swapping out UART with UART DMA variant on this target board.
    nrf/boards: Activate RTC, Timer, I2C, ADC and HW_SPI module and HAL on pca10031.
    nrf/boards: Activate RTC, Timer, I2C and ADC module and HAL on pca10001.
    nrf/boards: Adding RTC and Timer module and HAL to pca10000.
    nrf: Updating README.
    nrf: Removing unused font header.

Daniel Tralamazza <daniel@tralamazza.com>
    rename temperature example

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/examples: Adding ubluepy peripheral example that works across nrf51 and nrf52. The example uses Environmenting Sensing Service to provide the temperature characteristic. The temperature is fetched from the machine.Temp module. One note is that the example uses 1 LED which is not present on all boards.
    nrf5/modules/ubluepy: Adding new event constant for gatts write (80) events from bluetooth stacks.
    nrf5/hal/timer: Add support for fetching temperature if bluetooth stack is enabled.
    nrf5/drivers/bluetooth: Make printf in 'ble_drv_service_add' function part of debug log.

Daniel Tralamazza <daniel@tralamazza.com>
    implement #50

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/examples: Updating mountsd example with comment from deleted sdcard.py on how to wire SD directly to SPI.
    nrf5/examples: Removing copy of sdcard.py also found in drivers/sdcard.
    nrf5/examples: Removing copy of ssd1306 driver, creating a new class that overrides the needed function for i2c. Also adding some example usage in the comment in top of the file for both SPI and I2C variant.
    nrf5/hal/gpio: Updating toggle inline function to work correctly, currently only used by LED module.
    nrf5/examples: Renaming servo.py to nrf52_servo.py as it is only implemented machine.PWM for nrf52.
    nrf5/freeze: Adding generic example to freeze. Hello world with board name as parameter.
    nrf5/examples: Moving nrf52 specific HW example from freeze to examples to replace test.py with a more generic example.
    nrf5: Update pyb module, and led module to only be compiled in if MICROPY_HW_HAS_LED is set to 1.
    nrf5/boards: Updating boards with correct LED count. Also adding new flag, MICROPY_HW_HAS_LED, to select whether the board has LED's at all. If not, this will unselect LED module from being compiled in.
    nrf5/boards: Updating pca10040 board header to set the LED count.
    nrf5: Generalize script setting LED(1) on to be applied only when there are leds present on the board.
    nrf5: Updating mpconfigport.h to set default values for MICROPY_HW_LED_COUNT (0) and MICROPY_HW_LED_PULLUP (0).
    nrf5/boards/feather52: Update s132 target makefile with dfu-gen and dfu-flash. This enables feather52 with Bluetooth LE. Features to be configured in bluetooth_conf.h.
    nrf5/boards/feather52: Add SERIAL makeflag if dfu-flash target is used.
    nrf5: Updating readme.md file based on review comments.
    nrf5: Update help.c with documentation of CTRL-A and CTRL-B to enter and exit raw REPL mode.
    nrf5: Updating main.c to support RAW REPL.
    Update README.md
    nrf5/modules/music: Updating pitch method to also use configured pin from mpconfigboard.h if set, in the case of lacking kwarg for pin. Also removing some commented out arguments to remove some confusion in the argument list. Done for both play() and pitch().
    nrf5/modules/music: Correct parameter checking of pin argument to deside whether to use MUSIC_PIN define or throw an error. If MUSIC_PIN define is configured the pin argument to music module play() can be elided.
    nrf5/modules/machine: Update timer init to set default IRQ priority before initializing Timer instance.
    nrf5/hal/timer: Update timer hal to use value provided in init to configure the irq_priority.
    nrf5/modules/machine: Reserving timer0 instance for bluetooth if compiled in. Leaving timer1 and timer2 for application. Note that music module soft-pwm will also occupy timer1 if enabled.
    nrf5/modules/machine: Updating timer module to use new hal. Adding new parameters to the init to set period, mode and callback.
    nrf5/hal/timer: Implementing hal_timer to 1us prescaler. Multiplier inside to get to millisecond resolution. Callback must be registered before starting a timer.
    nrf5: Makefile cleanup. Removing duplicate include and unused netutils.c used by BLE 6lowpan network which has been removed for now.
    nrf5/modules/machine: Indention fix in uart module.
    nrf5/modules/machine: Removing unused code from uart module.
    nrf5/hal/rtc: Updating hal driver to calculate prescaler a bit more verbose. Using 1 second interval ticks.
    nrf5/modules/machine: Fixing type in RTC.
    nrf5/modules/machine: Update rtc init to set default IRQ priority before initializing RTC instance.
    nrf5/hal/rtc: Aligning RTC (real-time counter) HAL driver with Timer HAL driver. To make api's symetric. Also updating modules/rtc to get aligned with new HAL api.
    nrf5/drivers/bluetooth: Moving stop condition initialization before call to bluetooth stack write function is done, to make sure that its not overwritten after reception of the write event in case of with_response writes.
    nrf5/drivers/bluetooth: Removing duplicate static variable declaration.
    nrf5/modules/ubluepy: Updating characteristic write method to take in an additional keyword, 'with_response'. Default value is False. Only activated in central role.
    nrf5/drivers/bluetooth: Updating ble_drv_attr_c_write with possibility to do client write with response. Blocking call.
    nrf5/examples: Adding some notes on which pin layout that has been used in the seeed_tft.py ILI9341 driver for driving the display.
    nrf5/examples: Shorten name on seeedstudio_tft_shield_v2.py to seeed_tft.py.
    nrf5/examples: Updating ili9341 example to use new Frambuffer object instead of legacy Framebuffer1.
    nrf5/examples: Removing seeed.py which used a lcd mono framebuffer has been removed.

Matt Trentini <matt.trentini@gmail.com>
    Adding a README for the nRF5 port

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/examples: Updating documentation in SDCard module example. Correcting typo and adding SD card wireing documentation for direct SPI connection.
    nrf5/modules/pin: Adding on() and off() methods to Pin object to be forward compatible with upstream master. Legacy high() and low() methods are kept.
    nrf5/modules/spi: Remove pyb abstraction from SPI module, as there was a bug in transfer of bytes due to casting errors. The update removes the pyb_spi_obj_t wrapper going directly on the machine_hard_spi_obj_t as base for machine SPI objects. SDCard mounting is also tested.
    nrf5/drivers/bluetooth: Enable ubluepy central by default if running nrf52/s132 bluetooth stack. Maturity of the module is pretty OK now.
    nrf5/boards/feather52: Updating pins.csv for the feather52 board.
    nrf5/boards/feather52: Updating LED pull to low.
    nrf5/boards/feather52: Update SPI pinout.
    nrf5/main: Move initializaton of modmusic to the module itself. Upon init of the module, the hardware, pwm and ticker will be started. Could be moved back to main if pwm or ticker should be shared among more modules and have to be initialized more global.
    nrf5/modules/machine/timer: If timer is used in combination with SOFT_PWM (implicitly use of ticker.c) guard the Timer1 instance from being instantiated trough python timer module. Also disable implementation of the HAL IRQ handler which is for now explicitly implemented in ticker.c for Timer1.
    nrf5/modules/music: Update ticker and modmusic to share global ticks counter as a volatile variable. Use Timer1 hardware peripheral instead of instance 0. Timer0 is not free if used in combination with a bluetooth stack. Update IRQ priority to levels that are compatible in use with a bluetooth stack for both nrf51 and nrf52. Apply nrf51 PAN fixes for Timer1 instead of original Timer0.
    nrf5/drivers/bluetooth: Updating bluetooth driver to initialize nrf_nvic_state_t struct during declaration of the global variable instead of explicit memset.
    nrf5/hal/irq: Adding wrappers for handling nvic calls when Bluetooth LE stack is enabled.
    nrf5/modules/machine: Updating IRQ levels in SPI with IRQ priorities compatible with Bluetooth stacks.
    nrf5/device: Remove old startup files in asm, which has now been replaced with c-implementation.
    nrf5: Update Makefile to add c-implementation of startup scripts instead of the .s files.
    nrf5/device: Adding startup files in .c to replace current asm versions.
    nrf5/examples: Tuning Bluetooth LE example controller python script after testing out the example live. Motor speed of 100 was not enought to lift the airplane. Also turning was hard without setting higher angle values. The new values are just guessed values. However, the flying experience was good.
    nrf5/hal/irq: Adding include of nrf_nvic.h if s132 bluetooth stack is used to resolve IRQ function wrappers on newer bluetooth stacks.
    nrf5/drivers/ticker: Removing unused code.
    nrf5/examples: Adding music example. Only working if bluetooth stack is not enabled.
    nrf5/boards/microbit: Disable music and softPWM as there are some issues with the ticker.
    nrf5: Adding -fstack-usage flag to gcc CFLAGS to be able to trace stack usage on modules.
    nrf5/drivers/ticker: Removing LowPriority callback from nrf51 as there is only one SoftwareIRQ free if bluetooth stack is enabled. Also setting new IRQ priority on SlowTicker to 3 instead of 2, to interleave with bluetooth stack if needed. Updating all NVIC calls to use hal_irq.h defined static inlines instead of direct access.
    nrf5/hal/irq: Adding IRQ wrappers if Bluetooth Stack is present.
    nrf5: Facilitate option to configure away the modble if needed. Enabled if MICROPY_PY_BLE config is enabled in bluetooth_conf.h.
    nrf5/boards/microbit: Enable music module by default. However, timer and rtc module has to be disabled. Bluetooth support broken. Optimization needed.
    nrf5/modules/machine: Quickfix. Update timer object to not allow instanciation of Timer(0) if SOFT_PWM is enabled by board.
    nrf5/hal/timer: Quickfix. Disable IRQ handler if SOFT_PWM is configured to be enabled. Ticker driver has in current driver a seperate IRQ handler for this timer instance.
    nrf5/drivers/ticker: Add compile config guard in ticker.c to only include the driver if SOFT_PWM is configured in by board.
    nrf5/drivers/softpwm: Renaming pwm_init to softpwm_init to not collide on symbol name with pwm_init in nrf52 machine PWM object.
    nrf5: Add modmusic QSTR definition of notes to qstrdefsport.h.
    nrf5: Update Makefile to include ticker.c and renamed softpwm. Updating also include paths to include modules/music and drivers/.
    nrf5: Adding include of modmusic.h in main.c.
    nrf5: Call microbit_music_init0() if enabled in main.c.
    nrf5/modules/music: Expose public init function for music module.
    nrf5/modules/music: Update modmusic to use updated includes. Add extern ticks. Add function which implements initialization of pwm and ticker, register ticker callback, and start the pwm and ticker. This corresponds to microbit port main.cpp init.
    nrf5/drivers/softpwm: Enable use of ticker in softpwm driver.
    nrf5/drivers/ticker: Adding ticker.c/.h from microbit port.
    nrf5/drivers/pwm: Renaming pwm.c/.h to softpwm.c/.h
    nrf5/drivers/pwm: Expose pwm_init() as public function.
    nrf5/modules/ubluepy: Making peripheral conn_handle volatile. Upon connection event, the variable is accessed in thread mode. However, the main-loop is blocking on conn_handle != 0xFFFF. If this is not volatile, optimized code will not exit the loop.
    nrf5/drivers/bluetooth: As callback functions are in most usecases are set to NULL upon last event to get public API function out of blocking mode, these function pointers has to be set as volatile, as they are updated to NULL in interrupt context, but read in blocking main-thread.
    nrf5/examples: Fixing overlapping function names and variable names inside the object. Also removing some print statements. Tuning max angle from -7/7 to -25/25.

Glenn Ruben Bakke <glennbakke@gmail.com>
    Powerup (#26)

    * nrf5/examples: Adding python example template for PowerUp 3.0 Bluetooth LE controlled Paper Airplane.
    * nrf5: Enable bluetooth le central while developing powerup 3.0 example.
    * nrf5/examples: Backing up powerup 3.0 progress.
    * nrf5/examples: Adding working example on how to control PowerUp 3.0 paper airplane using bluetooth le.
    * nrf5/bluetooth: Disable central role.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/modules/ubluepy: Correcting alignment of enum values in modubluepy.h.
    nrf5/drivers/bluetooth: Add implementation of client attribute write without response.
    nrf5/modules/ubluepy: Pass on buffer to write in characteristic write central mode.
    nrf5/modules/ubluepy: Updating characteristic object write function to be role aware. Either peripheral or central (gatts or gattc). Adding dummy call to attr_c_write if central is compiled in. Still in progress to be implemented.
    nrf5/drivers/bluetooth: Adding template function for attr_c_write.
    nrf5/drivers/bluetooth: Renaming attr_write and attr_notify to attr_s_write and attr_s_notify to prepare for introduction of attribute write for gatt client.
    nrf5/modules/ubluepy: Fixing type in ubluepy_peripheral.c.
    nrf5/modules/ubluepy: Setting peripheral role upon advertise() or connect().
    nrf5/drivers/bluetooth: Adding role member to peripheral object to indicate whether Peripheral object is Peripheral or Central role.
    nrf5/modules/ubluepy: Continue characteristic discovery until nothing more is found during connect proceedure.
    nrf5/drivers/bluetooth: Refactoring code to group statics for s130 and s132 into the same ifdef. Also adding two empty lines in discovery functions to make it more easy to read.
    nrf5/drivers/bluetooth: Updating characteristic discovery to signal whether anything was found or not.
    nrf5/modules/ubluepy: Continue primary service discovery until nothing more is found in connect proceedure.
    nrf5/drivers/bluetooth: Updating primary service discovery api to take in start handle from where to start the service discovery. Also adjusting return parameter to signal whether anything was found or not.
    nrf5/modules/ubluepy: Remove duplication GAP event handler registration in peripheral.connect().

Glenn Ruben Bakke <glennbakke@gmail.com>
    Support address types (#18)

    * nrf5/modules/ubluepy: Adding new enumeration of address types.
    * nrf5/modules/ubluepy: Adding constants that can be used from micropython for public and random static address types.
    * nrf5/modules/ubluepy: Adding support for optionally setting address type in Peripheral.connect(). Public address is used as default. Address types can be retrieved from 'constants'. Either constants.ADDR_TYPE_PUBLIC or constants.ADDR_TYPE_RANDOM_STATIC.
    * nrf5/modules/ubluepy: Register central GAP event handler before issuing connect to a peripheral. Has to be done before connect() function as a connected event will be propergated upon successfull connection. The handler will set the connection handle which gets connect function out of the busy loop waiting for connection to succeed.
    * nrf5/modules/ubluepy: Removing duplicate setting of GAP event handler in connect().

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/modules/ubluepy: Register central GAP event handler before issuing connect to a peripheral. Has to be done before connect() function as a connected event will be propergated upon successfull connection. The handler will set the connection handle which gets connect function out of the busy loop waiting for connection to succeed.
    nrf5/modules/ubluepy: Fixing compilation bug of wrong variable name when registering gattc event handler in ublupy peripheral connect function (central mode).
    nrf5/bluetooth: Updating makefiles with updated paths to bluetooth le components after moving files.
    nrf5/bluetooth: Moving stack download script to drivers/bluetooth folder.
    nrf5/bluetooth: Move bluetooth driver files to drivers/bluetooth. Move bluetooth stack download script to root folder.
    nrf5/bluetooth: Guarding implementation against being linked in by surrounding it with BLUETOOTH_SD flag. Flag is only set if SD=<sdname> parameter is provided during make.
    nrf5/bluetooth: Moving makefile include folder and source files of bluetooth driver, ble uart and ble module to main Makefile.
    nrf5/bluetooth: Moving help_sd.h and modble.c to modules/ble.
    nrf5/modules/machine: bugfix after changing to MP_ROM_PTR in machine module local dict.
    nrf5: Syncing code with upstream master and converting all module and method tables to use MP_ROM macros. Also adding explicit casting of local dicts to (mp_obj_dict_t*).
    nrf5/modules/timer: Fixing bug in timer_find(). Function allowed to locate index out of range and started to look up in config pointer (index == size of array).
    nrf5/modules/timer: Remove test which is covered by timer_find() function in the line below.
    nrf5/modules/timer: Adding locals dict table and adding start/stop template functions. Also adding constants for oneshot and periodic to locals dict.
    nrf5/modules/timer: Adding timer module to modmachine.
    nrf5/boards: Adding micro:bit default music pin definition. Also adding config flag for enabling pwm machine module.
    nrf5/hal/timer: Adding start/stop template functions to hal_timer.h/.c
    nrf5/Makefile: Adding drivers/pwm.c and modules/music files to the source file list.
    nrf5/modules/music: Adding config guard in musictunes.c and adding import of mphal.h.
    nrf5/modules/music: Including mphal.h before config guard in modmusic.c. Also changed name on config guard to MICROPY_PY_MUSIC. Missing PWM functions during linkage will show up if PWM module has not not configured.
    nrf5/drivers/pwm: Including mphal.h before config guard in pwm.c.
    nrf5: Updating mpconfigport.h to include music module as builtin. Adding new configuration for enabling music module. Activating MODULE_BUILTIN_INIT in order to run music module init function on import.
    nrf5/modules/music: Backing up progress in music module.
    nrf5/drivers/pwm: Updating soft PWM driver to only be included if SOFT_PWM config is set.
    nrf5/hal/gpio: Add function to clear output register using a pin mask.
    nrf5: Adding new configuration called MICROPY_PY_MACHINE_SOFT_PWM to mpconfigport.h. This config will enable software defined PWM using timer instead of using dedicated PWM hardware. Aimed to be used in nrf51 targets.
    nrf5/boards: Removing PWM config set to 0 from pca10001 board. Config will later be re-introduced as SOFT_PWM variant.
    nrf5/pwm: Updating config name of PWM to hardware PWM to prepare for introduction of soft variant.
    nrf5/modules/music: Backing up progress in modmusic.
    nrf5/modules/music: backing up porting progress in modmusic.c.
    nrf5/modules/music: Commenting out backend function calls in modmusic.c to make module compile for now.
    nrf5/modules/music: Updating music module to use pin_obj_t instad of microbit_pin_obj_t. Update include to drivers/pwm.h to resolve some undefined functions.
    nrf5/modules/music: Removing c++ extern definition. Updating include list in modmusic.c. Removing module name from module struct.
    nrf5/modules/music: Removing include of modmicrobit.h in musictunes.c.
    nrf5/modules/music: Adding header to expose extern structs defined in musictunes.c
    nrf5/drivers: Adding copy of microbit soft pwm.
    nrf5/modules/music: Renaming microbitmusic files to modmusic/music.
    nrf5/modules/music: Renaming microbit module to music.
    nrf5/modules/microbit: Copying microbit music module to the port.
    nrf5/modules/timer: Adding timer3 and timer4 to timer object in case of nrf52 target.
    nrf5/modules/timer: Optimizing timer object structure and updating the module to use new hal_timer_init structures and parameters.
    nrf5/hal/timer: Adding empty IRQ handlers for all timers.
    nrf5/hal/timer: Changing hardcoded hal timer instance base to a lookup, so that IRQ num can be detected automatically without the need of using struct param on it. Size of binary does not increase when using Os.
    nrf5: Updating example in main.c on how to execute string before REPL is set up, to allow for boards with two leds. Todo for later is to update this code such that it will skip this LED toggle when there are no leds defined. Or use an example not depending on LEDs.
    nrf5/bluetooth: Updating Bluetooth LE stack download script to allow to be invoked from any parent folder. No need to change directory to bluetooth/ in order to get the correct download target folder position. Using the script location to determine the target folder.
    nrf5/boards: Adding board target for feather52 using s132 v.2.0.1 application offset even if the device is not using softdevice. To be worked on later.
    nrf5/boards: decrease size of ISR region from 4k to 1k in custom feather52 linker script to get some more flash space.
    nrf5/boards: Updating feather52 mpconfigboard.h to use correct uart pins, flow control disabled. Also adjusting leds down to two leds.
    nrf5/boards: Updating path to custom linker script for feather52 board.
    nrf5/boards: Renaming bluefruit_nrf52_feather to feather52 to shorten down the name quite drastically.
    nrf5/boards: Updating path to custom bluefruit feather linker script after renaming board folder.
    nrf5/boards: Renaming bluefruit_feather to bluefruit_nrf52_feather as it also exist a m0 variant of the board name.
    nrf5/boards: Updating mpconfigboard.h for bluefruit nrf52 feather with correct board, mcu and platform name.
    nrf5/boards: Updating adafruit bluefruit nrf52 feather linker script to use 0x1c000 application offset.
    nrf5/boards: Renaming custom linker script for bluefruit feather to reflect that the purpose of the custom linker script is DFU. The script is diverging from the generic s132 v2 linker script in the offset of the application.
    nrf5/boards: Adding custom linker script for adafruit nrf52 bluefruit feather to be able to detect application upper boundry in flash. Pointing s132 mk file to use this new custom linker script instead of the generic s132 v2 linker script.
    nrf5/boards: Adding linker script for nrf52832 s132 v.2.0.1.
    nrf5/boards: Adding template board makefiles and configs for bluefruit nrf52 feather. Copied from pca10040 target board. Linker script reference updated to use s132 v2.0.1. Non-BLE enable build disabled for now. Board configuration for leds, uart etc has not been updated yet from pca10040 layout.
    nrf5/bluetooth: Correcting typo in test where s132 API version is settled.
    nrf5/bluetooth: Updating bluetooth le driver to compile with s132 v.2.0.1 stack.
    nrf5/bluetooth: Add new compiler flag to signal API variants of the s132 bluetooth le stack. The version is derived from the major number of the stack name.
    nrf5/bluetooth: Remove hardcoded softdevice version as this now comes as parameter from board makefile.
    nrf5/boards: Updating makefiles using bluetooth stack to use updated linker script file names.
    nrf5/boards: Renaming bluetooth stack linker scripts to reflect version of the stack.
    nrf5/boards: adding some spaces in s132 makefile for pca10040.
    nrf5/boards: Renaming linker script for nrf52832 using bluetooth stack such that it also holds the version number of the stack. Updating linkerscript using the target linker script.
    nrf5/bluetooth: Add support for downloading s132_2.0.1 bluetooth stack.
    nrf5/bluetooth: Switch over to downloaded bluetooth stacks from nordicsemi.com instead of getting them through the SDK's. This will facilitate download of s132 v2.0.0 later.
    nrf5/bluetooth: Fixing bug found when testing microbit. Newly introduced advertisment data pointer was not cleared on nrf51 targets. Explicit set to NULL as no additional advertisment data is set. Raises a question on why the nrf51 static variable was not zero initialized. To be checked up.
    nrf5: Removing SDK_ROOT parameter to Makefile. Bluetooth stacks should be downloaded using the download_ble_stack.sh. The script should be run inside the bluetooth folder to work properly.
    nrf5/bluetooth: Adding back SOFTDEV_HEX as flash tools in main Makefile uses this to locate hex file.
    nrf5/bluetooth: Including bluetooth stack version in folder name after download to be able to detect if stack has been updated.
    nrf5/bluetooth: Updating Bluetooth LE stack download script.
    nrf5/bluetooth: Adding bash script to automate download of bluetooth le stacks
    nrf5/examples: Adding example to show how to use current PWM module to control servo motors.
    nrf5/modules/machine: Updating PWM module with two new kwargs parameters. One for setting pulse with more fine grained. This value should not exceed the period value. Also, adding support for setting PWM mode, whether it is LOW duty cycle or HIGH duty cycle. By default, high to low is set (this could be changed).
    nrf5/hal/pwm: Updating PWM implementation to support manually set duty cycle period. Pulse width has precidence over duty cycle percentage. Also adding support for the two configurable modes, high to low, and low to high, duty cycles.
    nrf5/hal/pwm: Adding more configuration options to the PWM peripheral wrapper. Possibility to set pulse with manually, and also mode. The mode indicates whether duty cycle is low and then goes high, or if it is high and then go low. Added new type to describe the two modes.
    nrf5: Adding hal_gpio.c to Makefile's source list.
    nrf5/modules/machine: Updating Pin module to register a IRQ callback upon GPIO polarity change events.
    nrf5/hal/gpio: Adding initial gpiote implementation to handle IRQ on polarity change on a gpio.
    nrf5: Moving initialization of pin til after uart has been initialized for debugging purposes. This will make it possible to use uart to print out debug data when adding gpio irq handlers.
    nrf5/hal/gpio: Adding some new structures and functions to register irq channels to gpio's using GPIOTE peripheral
    nrf5/hal/gpio: Adding missing include.
    nrf5/modules/machine: Style fix in pin object, indention.
    nrf5/modules/machine: Adding placeholder for irq method to pin object class.
    nrf5/modules/machine: Adding pin irq type and basic functions and structures.
    nrf5/hal/gpio: Reintroducing gpio polarity toggle event to be able to reference the short form of adding high_to_low and low_to_high together.
    nrf5/hal/gpio: Updating hal_gpio.h with some tab-fixes in order to make the file a bit consistent in style.
    nrf5/hal/gpio: Removing toggle event from the enumeration as that will be a combination of the rising and falling together.
    nrf5/modules/machine: Removing toggle event trigger as that will be a combination of the rising and falling together.
    nrf5/modules/machine: Adding new constants to pin object for polarity change triggers using the enumerated values in hal_gpio.h.
    nrf5/hal/gpio: Adding new enumeration for input polarity change events.
    nrf5/hal: Moving hal_gpio functions, types and defines from mphalport.h to a new hal_gpio.h.
    Revert "lib/netutils: Adding some basic parsing and formating of ipv6 address strings. Only working with full length ipv6 strings. Short forms not supported at the moment (for example FE80::1, needs to be expressed as FE80:0000:0000:0000:0000:0000:0000:0001)."
    nrf5: Removing leftover reference to deleted display module.
    nrf5/usocket: Removing network modules related to Bluetooth 6lowpan implementation as it depends on SDK libraries for now. Will be moved to seperate working branch.
    nrf5: Removing custom display, framebuffer and graphics module to make branch contain core components instead of playground modules.
    nrf5/modules/usocket: Updating import of netutils.h after upmerge with upstream master.
    nrf5/bluetooth: Add some comment on the destination of the eddystone short-url.
    nrf5/bluetooth: Updating Eddystone URL to point to https://goo.gl/x46FES which hosts the MicroPython WebBluetooth application which will be able to connect to the Bluetooth LE UART service of the device and create the REPL.
    nrf5/bluetooth: Adding webbluetooth REPL template. Alternating advertisment of eddystone URL and UART BLE service every 500 ms. Adding new config parameter to bluetooth_conf.h to enable webbluetooth repl. Has to be configured in combination with BLE_NUS. Eddystone URL not pointing to a valid WebBluetooth application at the moment, but rather to micropython.org as a placeholder for now.
    nrf5/modules/ubluepy: Adding method Peripheral object to stop any ongoing advertisment. Adding compile guard to only include advertise and advertise_stop if peripheral role is compiled in.
    nrf5/bluetooth: Adding function to stop advertisment if onging
    nrf5/modules/ubluepy: Adding support for starting advertisment from BLE UART REPL, by delaying registration of gatt/gatts and gattc handlers until needed in advertise or connect. If non connectable advertisment is selected, handlers in peripheral new is not anymore overriding the other peripheral instances which has set the callbacks.
    nrf5/bluetooth: Adding possibility to configure whether advertisment should be connectable or not.
    nrf5/bluetooth: Removing legacy advertise function in the bluetooth driver, which only did a hardcoded eddystone beacone advertisment.
    nrf5/help: Updating ble module help description to also include the address method.
    nrf5/bluetooth: Renaming the ble module method address_print() to address(), as it will now return a string of the resolved local address. Updating the function to create a string out the local address and return this.
    nrf5/bluetooth: Update ble_drv_address_get to new api which pass in a address struct to fill by reference. Updating implementation to copy the address data. Also ensuring that the bluetooth stack has been enabled before fetching the address from the bluetooth stack.
    nrf5/bluetooth: Adding new structure which can hold local address. Updating api prototype for ble_drv_address_get with a address structure by reference.
    nrf5/bluetooth: Updating help text for ble module to also list up enabled() function which queries the bluetooth stack on whether it is enabled or not.
    nrf5/bluetooth: Removing advertise from ble module. Removing help text as well.
    nrf5/examples: Adding python eddystone example using ubluepy api.
    nrf5/modules/ubluepy: Open up Peripheral advertise method to pass custom data to the bluetooth driver. Allowing method to allow kwargs only if no args is set. To support setting data kwarg only.
    nrf5/modules/ubluepy: Adding new members to the ublupy advertisment parameters, to hold custom data payload if set.
    nrf5/bluetooth: Cleaning up stack enable function, to not set device name twice. Also, adding support for setting custom advertisment data.
    nrf5/modules/ubluepy: Adding compile guard for UBLUEPY_CENTRAL around the char_read() call to ble_drv_attr_c_read().
    nrf5/bluetooth: Moving central code inside central bluetooth stack defines to make peripheral only code compile again.
    nrf5/examples: Updating ubluepy scan example to use constant value from ubluepy instead of hardcoded value.
    nrf5/examples: Adding example on how to use the ubluepy Scanner object in order to scan for a device name and find the address of the device. This can subsequently be used to perform a Central role connect() using the Peripheral object.
    nrf5/modules/ubluepy: Turn all attributes (addr, addr_type and rssi) to method calls instead of using common .attr callback. Adding getScanData implementation, which parses the advertisment data and returns a list of tuples containing (ad_type, desc, value). Description is generated by peeking into the ad_types local dicts map table, and do a reverse lookup on the value to find the QSTR.
    nrf5/modules/ubluepy: Adding ad_types constants in new object. Linking in ad_types object into the ubluepy.constants local dict.
    nrf5/modules/ubluepy: Expose ubluepy constant objects as externs in modubluepy.h to be able to get access to the local dict tables in order to do a reverse lookup on value to resolve QSTR from external modules in c.
    nrf5/modules/ubluepy: Upon advertisment event, also store the advertisment data.
    nrf5/modules/ubluepy: Adding callback function to handle read response if gatt client has issued a read request. Also adding method for returning the uuid instance from the object.
    nrf5/modules/ubluepy: Adding value data member to the characteristic object. This can hold the value data when gatt client perform a read and value has to be transferred between interrupt and main thread.
    nrf5/bluetooth: Updating bluetooth driver to support GATT client read of a characteristic value. Data passed to caller in interrupt context, and copy has to be performed. The function call is itself blocking.
    nrf5/modules/ubluepy: Adding uuid() function to service object to return UUID instance of the service.
    nrf5/modules/ubluepy: Adding binVal() function to the ubluepy UUID object. For now returning the uint16_t value of the UUID as a small integer.
    nrf5/modules/ubluepy: Adding dummy function call to ble_drv_attr_c_read.
    nrf5/bluetooth: Adding new api for reading attribute as gatt client. Renaming old ble_drv_attr_read function to ble_drv_attr_s_read to indicate the server role.
    nrf5/bluetooth: Adding event handling cases for gatt client read, write and hvx events.
    nrf5/modules/ubluepy: Tab-fix
    nrf5/modules/ubluepy: Updating peripheral object to handle characteristic discovery (central mode).
    nrf5/modules/ubluepy: Adding start and end handle to service object.
    nrf5/bluetooth: Adding support for central characteristic service discovery. Updating primary service discovery to block until all services has been created in the peripheral object before returning from the bluetooth driver. This pattern is also applied to the characteristic discovery.
    nrf5/modules/ubluepy: Updating ubluepy peripheral object to new bluetooth driver API. Starting to populate service objects and uuid objects. Also adding the service to the peripheral object throught the regular static function for adding services. Handle value for the primary service is assuming that it is the first element in the handle range; start_handle reported by the service discovery.
    nrf5/bluetooth: Updating bluetooth driver to do service discovery, doing callbacks to ubluepy upon each individual primary service discovered. Using intermediate structure defined by the driver, to abstract bluetooth stack specific data in ubluepy.
    nrf5/modules/ubluepy: Adding some work in progress on service discovery.
    nrf5/bluetooth: Adding implementation to the discover service function. Adding handler for gatt client primary service discovery response events, and passing this to the ubluepy upon reception.
    nrf5/bluetooth: Adding function parameters and return type to service and characteristic discovery template functions.
    nrf5/bluetooth: Adding template functions for service discovery in bluetooth driver.
    nrf5/bluetooth: Adding function to register gattc event handler (central).
    nrf5/bluetooth: Adding intermediate gattc callback function type in bluetooth driver.
    nrf5/bluetooth: Turning off debug logging in bluetooth driver, which does not work well with bluetooth REPL mode.
    nrf5/bluetooth: Fixing some smaller tab errors in the bluetooth driver.
    nrf5/bluetooth: Updating bluetooth le driver to handle GAP conn param update request. Also updating minor syntax in previous switch case.
    nrf5/boards: Inrease heap size in the nrf52832 w/s132 bluetooth stack linker script.
    nrf5/modules/ubluepy: Update connect method to parse dev_addr parameter and pass it to the bluetooth driver, going through a allocated heap buffer. Adding call to the bluetooth driver to issue a connect. Hardcoding address type for now.
    nrf5/bluetooth: Updating connect function in the bluetooth driver to do a successful connect to a peripheral device.
    nrf5/modules/ubluepy: Adding template function for central connect() in peripheral object.
    nrf5/modules/ubluepy: Adding locals dict to Scan Entry introducing function to retreive Scan Data. Not working as expected together with .attr. It looks like locals dict functions are treated to be attributes and cannot be resolved.
    nrf5/bluetooth: Adding function for connecting to a device (in central role). Not yet tested.
    nrf5/modules/ubluepy: Return BLE peer address as string instead of bytearray. Updated struct in modubluepy.h to use a mp_obj_t to hold a string instead of a fixed 6-byte array. Stripped down ScanEntry print out to only contain class name, peer address available through addr attribute.
    nrf5/bluetooth: capture address type in addition to advertisment type in bluetooth advertisment reports.
    nrf5/modules/ubluepy: Correcting rssi member in scan_entry object to be int instead of uint.
    nrf5/modules/ubluepy: Adding attribute to ScanEntry object for getting address (returning bytearray), type (returning int) and rssi (returning int).
    nrf5/modules/ubluepy: Copy address type and rssi to the ScanEntry object upon reception of an advertisment report callback.
    nrf5/bluetooth: Adding address type to bluetooth stack driver advertisment structure, and fill the member when advertisment report is received.
    nrf5/modules/ubluepy: Swapping address bytes when copying bluetooth address over to ScanEntry object during advertisment scan report event.
    nrf5/modules/ubluepy: Extending print of ScanEntry object to also include the bluetooth le address.
    nrf5/modules/ubluepy: Create new adv report list for each individual scan. Create a new ScanEntry object instance on each advertisment event recieved and append this to the current adv_report list.
    nrf5/modules/ubluepy: Adding print function to scan_entry object.
    nrf5/modules/ubluepy: Populating ubluepy_scan_entry_obj_t with members that are interesting to keep for the ScanEntry object.
    nrf5/bluetooth: Moving callback definitions to bluetooth driver header. Refactoring bluetooth driver, setting new names on callback functions and updating api to use new callback function name prefix.
    nrf5/modules/ubluepy: Extracting advertisment reports and adding some data to list before returning it in scan() method.
    nrf5/bluetooth: Adding handling of advertisment reports in bluetooth driver and issue callback to ubluepy. A bit ugly implmentation and has to be re-worked.
    nrf5/bluetooth: adding adv report data structure to pass to ubluepy upon adv report event. Adding new api for setting callack where to handle advertisment events in ubluepy.
    nrf5/modules/ubluepy: Adding adv_reports member to scanner object, to hold the result of scan.
    nrf5/modules/machine: Cleaning up uart a bit more. Removing unused any() method, and aligning print and local dict names to use machine_uart prefix.
    nrf5/bluetooth: Turn off bluetooth printf logging.
    nrf5: Add back ublupy scanner and scan entry source files in Makefile.
    nrf5/bluetooth: Enable implementation in scan start function in the bluetooth stack driver.
    nrf5/boards: Adjust heap end after increased .data usage in nrf52832 s132 linker script.
    nrf5/bluetooth: Adding more implementation in scan start function. However, commented out for time beeing, as there is some memory issues when activating central.
    nrf5: Removing ubluepy scanner and scan entry from Makefile source list until nrf52 central issues has been resolved.
    nrf5/bluetooth: Correcting indention.
    nrf5/bluetooth: Adding some implementation to scan_start function.
    nrf5/modules/ubluepy: Adding scan method to the Scanner object. Adding locals dict table.
    nrf5/bluetooth: Adding empty scan_start and scan_stop function to the bluetooth driver.
    nrf5/modules/ubluepy: Adding constructor function to scanner object.
    nrf5/modules/ubluepy: Adding print function to Scanner object.
    nrf5/modules/ubluepy: Disable all functions central related functions in the Peripheral object for now, even if MICROPY_PY_UBLUEPY_CENTRAL is enabled.
    nrf5/modules/ubluepy: Activate Scanner and ScanEntry objects if MICROPY_PY_UBLUPY_CENTRAL is set.
    nrf5/bluetooth: Adding new configuration flag for s132 bluetooth stack, to enable/disable ubluepy central. Disabled by default.
    nrf5: Adding ubluepy_scanner.c and ubluepy_scan_entry.c to Makefile source list.
    nrf5/modules/ubluepy: Adding template object typedefs for scanner and scan entry, and extern definition for scanner and scan_entry object type in modubluepy.h
    nrf5/modules/ubluepy: Adding templates for central role Scanner and ScanEntry objects.
    nrf5/uart: Moving UART from pyb to machine module.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/uart: Refactoring UART module and HAL driver

    Facilitating for adding second HW uart. Moving pyb_uart into
    machine_uart. Adding return error codes from hal_uart functions,
    if the hardware detects an error.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/modules: Updating uart object to allow baudrate configuration.
    nrf5/bluetooth: Moving bluetooth_conf.h to port root folder to make it more exposed.
    nrf5/boards: Remove define of machine PWM module configuration in nrf51 targets, as the device does not have a HW PWM peripheral.
    nrf5: Disable machine PWM module by default if board does not define it.
    nrf5/boards: Disable all display modules in pca10028 board config.
    nrf5: Updated after merge with master. Updating nlr_jump_fail to call __fatal_error in order to provide a non-returning function call.
    nrf5/boards: Adding more heap memory to the nrf51 256k/32k s110 linker script. Leaving 2k for stack.
    nrf5/modules/machine: Adding __WFI() on machine.deepsleep()
    nrf5/modules/machine: Adding __WFE() on machine.sleep()
    nrf5/modules/machine: Adding enable_irq() and disable_irq() method to the machine module. No implementation yet for the case where bluetooth stack is used.
    nrf5/modules/rtc: Adding support for stopping and restarting rtc (if periodic) for all the instances of RTC.
    nrf5/modules: Updating RTC kwarg from type to mode to set ONESHOT or PERIODIC mode.
    nrf5/modules: Adding support for periodic RTC callback.
    nrf5/hal: hal_rtc update. Adding current counter value to period value before setting it in the compare register.
    nrf5/modules: Updating rtc module with non-const machine object list in order to allow setting callback function in constructor.
    nrf5/hal: Adding initialization of LFCLK if not already enabled in hal_rtc.
    nrf5/modules: Moving irq priority settings in RTC object to rtc_init0 when initializing the hardware instances. Also modifying comments a bit. Adding simple example in comment above make_new function on how the object is intended to work.
    nrf5: Updating main.c to initialize the rtc module if enabled.
    nrf5/modules: Added RTC into the machine module globals dict.
    nrf5/modules: Updating rtc module. Not working yet.  Updated to align with new hal_rtc interface. Added start and stop methods. Allowing callback function set from init. This should be moved to start function, not set in main.
    nrf5/hal: Updating hal RTC implementation.
    nrf5/hal: Adding hal_irq.h which defines a set of static inline functions to do nvic irq operations.
    nrf5/modules: Updating machine uart module to use new hal uart interface name.
    nrf5/hal: Renaming uart hal function to use hal_uart prefix.
    nrf5/modules: Updating readfrom function in machine i2c module to use the new hal function which has been implemented.
    nrf5/hal: Adding untested implementation of twi read. Lacking sensors to test with :)
    nrf5/boards: Renaming linker script for all nrf51 and nrf52 into more logical names. Updating all boards with new names.
    nrf5/bluetooth: Updating header guard in bluetooth_conf.h to reflect new filename.
    nrf5/bluetooth: Updating old references to 'sdk' to use the new folder name 'bluetooth' in makefiles.
    nrf5: Renaming sdk folder to bluetooth.
    nrf5: Merging sdk makefiles into bluetooth_common.mk. s1xx_iot is still left out of this refactoring.
    nrf5: Renaming nrf5_sdk_conf.h to bluetooth_conf.h
    nrf5: Starting process of renaming files in sdk folder to facilitate renaming of the folder and make it more logical. Transition will be from sdk to bluetooth.
    nrf5/boards: Adding support for SPI, I2C, ADC, and Temp in machine modules in micro:bit target. Also activating hal drivers for the peripherals.
    nrf5/sdk: Updating low frequency clock calibration from 4 seconds to 250 ms for stack enable when BLUETOOTH_LFCLK_RC is enabled.
    nrf5/boards: Updating nrf51822_aa_s110.ld to be more generic, leaving all RAM not used for stack, .bss and .data to the heap.
    nrf51: Removing stack section from startup file as it got added to the final hex file. Thanks dhylands for helping out.
    nrf5/boards: Adding BLUETOOTH_LFCLK_RC to CFLAGS in microbit s110 makefile.
    nrf5/sdk: Adding support for initializing the bluetooth stack using RC oscillator instead of crystal. If BLUETOOTH_LFCLK_RC is set in CFLAGS, this variant of softdevice enable will be activated.
    nrf5: Initialize repl_display_debugging_info in pyexec.c for cortex-m0 targets.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Updating ringbuffer.h to use volatile variables for start and end.
    nrf5/sdk: Rename cccd_enable variable to m_cccd_enable in bluetooth le UART driver. Also made the variable volatile.
    nrf5/modules: Updating example in ubluepy header to use handle instead of data length upon reception of an event.
    nrf5/modules: Updating ubluepy peripheral to pass handle value to python event handler instead of data length. Data length can be derived from the bytearray structure.
    nrf5/sdk: Updating bluetooth le driver to handle SEC PARAM REQUEST by replying that pairing is not supported. Moving initialization of adv and tx in progress state variables to stack enable function.
    nrf5/modules: Enable ubluepy constants for CONNECT and DISCONNECT for other bluetooth stacks than s132.
    nrf5/sdk: Fixing unaligned access issues for nrf51 (cortex-m0) in bluetooth le driver

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Removing SDK dependant BLE UART Service implementation

    The sdk_12.1.0 nrf52_ble.c implementation was dependent on SDK components.
    This has been replaced with the ble_uart.c implementation using a standalone
    bluetooth driver implementation without need of SDK components.

    Also, sdk.mk has been updated to not use a special linker script.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf52: Removing folder to not confuse which folder is in development

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Removing ble_repl_linux.py

    Script does not really work very well with blocking char read and
    async ble notifications printing data when terminal stdout is blocked
    by readchar. Bluetooth UART profile implemented in ble_uart.c is
    now working with tralamazza's nus_console nodejs script.

    Ref: https://github.com/tralamazza/nus_console

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5: Add default config for MICROPY_PY_BLE_NUS (0)

    Disable Bluetooth UART to be used for REPL by default. Can be overridden
    in nrf5_sdk_conf.h. It is defined in  mpconfigport.h as it is connected to
    mphalport.c, where the config is used to determine whether default print
    functions should be using HW UART or Bluetooth UART.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Add ble_uart.c to source list

    ble_uart.c implements UART Bluetooth service on top of the
    bluetooth stack driver api calls. Can be enabled to be compiled
    in by defining MICROPY_PY_BLE_NUS = 1 in nrf5_sdk_conf.h.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Removing include of sdk_12.1.0's build.mk

    As no sources are needed from the SDK this build makefile
    can be deleted.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5: Force implementation of tx_str_cooked function if BLE NUS enabled.

    If BLE UART service has been enabled, the mp_hal_stdout_tx_strn_cooked
    is not defined by default anymore, and has to be implemented by the
    UART driver (in this case BLE).

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Adding compiler guard around exchange MTU request event.

    As s110 is not having this event or function call to answer on a MTU
    exchange request, this is excluded for all other version than s132
    for now.

Bander Ajba <banderajba@macwan.local>
    minor documentation and extra tabs removal fixes

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Updating BLE UART implementation by swapping TX and RX uuid and characterisitic handling. Removed dummy write delay of 10 ms.
    nrf5/sdk: Backing up progress in bluetooth le driver. Adding new gap and gatts handlers. Added handling of tx complete events when using notification, responding to MTU request, and setting of default connection parameters.

Bander Ajba <banderajba@macwan.local>
    fixed temp module to allow for instance support
    did required modification to merge the temperature sensore module

Dave Hylands <dhylands@gmail.com>
    Fix up Makefile dependencies

    I also didn't see any real reason for mkrules.mk to exist,
    so I merged the contents into Makefile.

    Now you can do:
    ```
    make BOARD=pca10028 clean
    make BOARD=pca10028 flash
    ```
    and it will work properly.

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5: Updating Makefile to use correct variable for setting directory of file to freeze as mpy.
    nrf5: Setting stack top in main.c. Thanks dhylands for pointing this out.
    nrf5/sdk: Backing up progress in BLE UART driver. Adding ringbuffer in order to poll bytes from recieved data in REPL main loop.
    nrf5/modules: Updating ubluepy example to print out gatts write events with data.
    nrf5/boards: Updating pca10028 bluetooth stack targets to have a MCU_SUB_VARIANT.

Bander Ajba <banderajba@macwan.local>
    added support for hardware temperature sensor

Glenn Ruben Bakke <glennbakke@gmail.com>
    nrf5/sdk: Adding macro based ringbuffer written by Philip Thrasher. source: https://github.com/pthrasher/c-generic-ring-buffer/blob/master/ringbuffer.h. Copyright noticed copied into the file, and file reviewed by Philip.
    nrf5/sdk: Updating bluetooth le driver to extract data length and pointer from the event structure upon gatts write operation.
    nrf5/modules: Expose ubluepy characteristic and peripheral types as external declaration in ublupy header.
    nrf5: Updating main to initialize bluetooth le uart module right before bluetooth REPL is started.
    nrf5/sdk: Updating bluetooth le uart implemenatation to block until cccd is written.
    nrf5/sdk: Backing up ubluepy version of ble uart service for Bluetooth LE REPL.
    nrf5/modules: Updating ubluepy example in header to align with bluetooth uart service characteristic's.
    nrf5/modules: Implementing characteristic write method. Possible to use write for both write and notifications.
    nrf5/sdk: Remaning bluetooth driver function ble_drv_attr_notif to *_notify.
    nrf5/modules: Adding props and attrs parameter to ubluepy characteristic constructor to override default values. Adding method for reading characteristic properties. Adding values to the local dict table that gives possibility to OR together a configuration of properties and attributes in the keyword argument during construction.
    nrf5/sdk: Adding parsing of characteristic properties and attributes (extra descriptions for the characteristic, for now cccd).
    nrf5/modules: Adding new members to ubluepy characteristic object, props and attrs. Adding enum typedefs for various properties and attributes.
    nrf5/modules: Syncing uart module code after upmerge with upstream master.
    nrf5/boards: Releasing more RAM for heap use in the nrf51 s110 linker script.
    nrf5/modules: Adding new gatts handler and registration of it during creation of a peripheral object. Also, added forwarding to python callback function (for now the same as for GAP).
    nrf5/modules: Adding new callback type in modubluepy for gatts events.
    nrf5/sdk: Adding support for setting gatts handler in the bluetooth le driver.
    nrf5/modules: Adding constant for CCCD uuid in ubluepy constants dict.
    nrf5: Adding ubluepy_descriptor.c into source list to compile.
    nrf5/modules: Adding template for ubluepy descriptor class implementation.
    nrf5/modules: Adding object structure for ubluepy descriptor.
    nrf5/sdk: Adding template functions for attribute read/write/notify in bluetooth le driver.
    nrf5/modules: Adding getCharacteristic method in ublupy service class. This function returns the characteristic with the given UUID if found, else None. The UUID parameter has to be of UUID class type, any other value, like strings will throw an exception.
    nrf5/modules: Updating method documentation in ubluepy peripheral and service.
    nrf5/modules: Adding new method, getCharacteristics(), in the ubluepy service class. The method returns the list of characteristics which has been added to the service instance.
    nrf5/modules: Updating method documentation in ubluepy peripheral class.
    nrf5/modules: Updating ubluepy service. Creating empty characteristic list in constructor. Appending characteristic to the list when added.
    nrf5/modules: Changed return in ubluepy addService() function to return mp_const_none instead of boolean.
    nrf5/modules: Correcting tabbing in ubluepy periheral impl.
    nrf5/modules: Updating ubluepy peripheral. Creating empty service list in constructor. Appending services to the list when added. Added new function for retreiving the service list; getServices().
    nrf5/modules: Adding new members in ubluepy peripheral and service object to keep track of child elements. Peripheral will have a list of services, and service will have a list of charactaristics.
    nrf5/modules: Removing connection handle from python gap event handler callback function.
    nrf5/modules: Updating ubluepy example in the header file with new function call to add service to a peripheral instance.
    nrf5/modules: Updating peripheral class to assign periopheral parent pointer to service's thats added. Also added a hook in the bluetooth le event handler to store the connection handle value, to prevent any services or characteristics to handle this value themselves.
    nrf5/modules: Updating service object to clear pointer to parent peripheral instance. Also assinging pointer to the service when adding a new characteristic.
    nrf5/modules: Updating print to also include peripheral's connection handle. Setting pointer to service parent instance to NULL.
    nrf5/modules: Correcting event id numbers for connect and disconnect event in ubluepy_constants.py
    nrf5/modules: Shuffle order of typedef in ubluepy header. Adding service pointer in characteristic object. Adding peripheral pointer to the service structure. When populated, the characteristic would get access to conn_handle and service handle through pointers. Also service would get access to peripheral instance.
    nrf5/modules: adding template functions for characteristic read and write.
    nrf5/modules: Adding constants class to ubluepy which will contain easy access to common bluetooth le numbers and definitions for the bluetooth stack.
    nrf5/modules: Updating example in ubluepy header with 16-bit uuid's commented out, to show usage.
    nrf5/sdk: Adding support for adding 16-bit uuid's in advertisment packet. The services in paramter list can mix 16-bit and 128-bit.
    nrf5/sdk: Updating sdk_common.mk with new filename of bluetooth le driver.
    nrf5: Updating all includes of softdevice.h to ble_drv.h
    nrf5/sdk: renaming softdevice.* to ble_drv.*
    nrf5/sdk: Renaming bluetooth driver functions to have ble_drv* prefix. Updating modules using it.
    nrf5/sdk: Enable ubluepy module if s110 bluetooth stack is enabled.
    nrf5/sdk: Updating bluetooth driver to only set periph and central count if s132 bluetooth stack. These parameters does not exist in older stacks.
    nrf5/modules: Updating bluetooth driver and ubluepy to use explicit gap event handler. Adding connection handle parameter to the gap handler from ubluepy. Resetting advertisment flag if connection event is recieved, in order to allow for subsequent advertisment if disconnected again. Example in ublupy header updated.
    nrf5: Adding target to flash bluetooth stack when using pyocd-flashtool.
    nrf5/modules: Guarding callback to python event handler before issue the call in case it is not set.
    nrf5/modules: Updating ubluepy example to turn led2 on and off when receiving connected and disconnect bluetooth event.
    nrf5/sdk: Updating bluetooth driver to have configurable logs.
    nrf5/modules: updating ubluepy and bluetooth driver to support python created event handler. Added registration of callback from ubluepy against the bluetooth driver and dispatching of events to the user supplied python function.
    nrf5/modules: Splitting includes to be inside or outside of the compile guard in ubluepy. This way, all micropython specific includes will be outside, and internal will be inside. This way, there will not be any dependency towards ubluepy headers if not compiled in.
    nrf5/modules: Adding two new functions to ubluepy peripheral class to set specific handlers for notificaitons and connection related events.
    nrf5: Set ubluepy to disabled by default in mpconfigport.h if not configured.
    nrf5/modules: Moving includes inside config defines to make non-ubluepy targets compile again.
    nrf5/modules: Adding 'withDelegate' function to peripheral class.
    nrf5/modules: Adding ubluepy delegate type to modubluepy globals table.
    nrf5: Adding ubluepy_delegate.c to list of source files to compile.
    nrf5/modules: Adding new object struct for delegate class and adding a delegate struct member to Peripheral class to bookeep callback object when event occurs.
    nrf5/modules: Adding template for ubluepy delegate class.
    nrf5/sdk: Fixing debug print in bluetooth driver to not use >>> prefix. Adding one more print for connection parameter update.
    nrf5/sdk: Correcting advertisment packet in bluetooth driver in order to make the device connectable.
    nrf5/sdk: Implementing simple event handler for bluetooth stack driver.
    nrf5/sdk: Disable all sdk components from being included in the build while implementing ubluepy, overlap in IRQ handler symbol.
    nrf5/modules: Shortening down the device name to be advertised in the example to make it fit with a 128-bit complete UUID.
    nrf5/modules: Bugfix in ubluepy_uuid_make_new. Used wrong buffer to register vendor specific uuid to the bluetooth stack.
    nrf5/sdk: Updating advertisment function in bluetooth le driver to add 128-bit complete service UUID provided in service list to the advertisment packet.
    nrf5/sdk: Updating advertisment funciton in bluetooth le driver to iterate through services passed in and calculate individiual uuid sizes.
    nrf5/modules: Updating advertisment method in peripheral class to memset advertisment structure. Also applying service list if set to the advertisment structure.
    nrf5/modules: Updating ubluepy module header usage example. Correcting enum for UUID types to start index from 1. Expanding advertisment data structure to also include service list members.
    nrf5/sdk: Adding static boolean for keeping track of whether advertisment is in progress in the bluetooth driver. Now, advertisment can be restarted with new data any time.
    nrf5/modules: Updating ubluepy peripheral class to use mp_const_none instead of MP_OBJ_NULL for unset values in advertisment method parameter list. Adding extraction of the service list in the advertisment method. The list is not yet handled.
    nrf5/modules: Adding a few examples in the modubluepy.h to get easier copy paste when implementing.
    nrf5/sdk: Successful device name advertisment. Added flags to advertisment packet and enable device name byte copy into the advertisment data.
    nrf5/modules: Turning ubluepy peripheral advertisment function into a keyword argument function so that it would be possible to set device name, service uuids, or manually constructed data payload.
    nrf5/sdk: Updating softdevice driver with function to set advertisment data and start advertisment. Does not apply device name yet. Work in progress.
    nrf5/modules: Adding new structure to ubluepy in order to pass advertisment data information to the bluetooth le stack.
    nrf5/modules: Adding function function to add characteristics to the ubluepy service. Enable function in service's local dict table.
    nrf5/modules: Adding function in bluetooth le driver to add characteristic to the bluetooth le stack.
    nrf5/modules: Adding more members to ublue characteristic object structure.
    nrf5/modules: Adding characteristic class to ubluepy globals table.
    nrf5/modules: Updating ubluepy characteristic implementation.
    nrf5/modules: Re-arranging includes in ubluepy_service.c
    nrf5/modules: Adding ubluepy charactaristic type struct.
    nrf5/modules: Updating ubluepy with more implementation in UUID and Service. Adding function in bluetooth le driver which adds services to the bluetooth stack. Making service take UUID object and Service type (primary/secondary) as constructor parameter in Service class.
    nrf5: Adding ubluepy to include path.
    nrf5/modules: Updating ubluepy UUID class constructor with some naive parsing of 128-bit UUIDs, and pass this to the softdevice driver for registration.
    nrf5/sdk: Adding new function to the softdevice handler driver to add vendor specific uuids and return an index to the entry back by reference.
    nrf5/modules: Updating ubluepy UUID class with constructor that can construct an object based on hex value of 16-bit or string of 16-bit prefixed with '0x'.
    nrf5/modules: Adding Peripheral, Service and UUID class to the ubluepy module globals table.
    nrf5/modules: Extending the implementation of Peripheral class in ubluepy.
    nrf5/modules: Extending the implementation of UUID class in ubluepy.
    nrf5/sdk: Adding configuration to enable the ubluepy peripheral class when using softdevice 132 from the SDK.
    nrf5: Adding ubluepy module to builtins if bluetooth stack is selected. Disable NUS profile by default. Adding source for ubluepy module into makefile to be included in build. The source is only linked if MICROPY_PY_UBLUEPY is set.
    nrf5: Aligning code after upmerge with master. Mostly FAT FS related updates. Not tested after merge.
    nrf5/modules: Adding new and print function to ubluepy peripheral class. Template functions only.
    nrf5/modules: Adding ubluepy UUID class template.
    nrf5/modules: Adding ubluepy characteristic class template.
    nrf5/modules: Adding missing #endif. Also adding to property templates to the lolcal dict.
    nrf5/modules: Adding ubluepy service class template.
    nrf5/modules: Updating ubluepy with class function placeholders.
    nrf5/modules: Renaming ble module folder to ubluepy.
    nrf5/modules: Adding new template file for ubluepy Peripheral class.
    nrf5/pyb: Moving pyb module into modules/pyb.
    nrf5/utime: Moving utime module into modules/utime.
    nrf5/uos: Moving uos module into modules/uos.
    nrf5/network: Moving network module into modules/network. Adding include path to network as its needed by the usocket module.
    nrf5/usocket: Moving usocket module into modules/usocket.
    nrf5/led: Moving led module into modules/machine.
    nrf5/led: Moving led module into modules/machine.
    nrf5/pwm: Moving pwm module into modules/machine.
    nrf5/rtc: Moving rtc module into modules/machine.
    nrf5/timer: Moving timer module into modules/machine.
    nrf5/pin: Moving pin module into modules/machine.
    nrf5/adc: Moving adc module into modules/machine.
    nrf5/i2c: Moving i2c module into modules/machine.
    nrf5/spi: Moving spi module into modules/machine.
    nrf5/uart: Moving uart module into modules/machine to start converting it into machine module and not pyb.
    nrf5/machine: Moving modmachine into modules/machine folder. Updating Makefile.
    nrf5/drivers: Renaming folder to modules.
    nrf5: Renaming python modules folder to freeze to give the folder its right meaning. The scripts put into this folder will be frozen.
    nrf5/drivers: Adding template for ubluepy module.
    nrf5/sdk: Adding compilation config whether to include BLE NUS implementation. Config found in sdk/nrf5_sdk_conf.h. NUS enabled for s132 targets by default.
    nrf5: Fallback to HW UART when not Bluetooth LE UART has been enabled.
    nrf5: Updating main.c to use MICROPY_PY_BLE_NUS as switch for regular uart initialization or bluetooth le uart initialization.
    nrf5/sdk: Adding work-in-progress script to connect to bluetooth le REPL using bluepy python module in linux.
    nrf5/boards: Updating board makefiles for s132 and s1xx target for pca10040 (nrf52832) by adding sub variant and device define to the makefiles.
    nrf5/examples: Updating ssd1306.py example with a comment describing proceedure on how to use the I2C variant of the driver.
    nrf5/hal: Line wrapping params in hal_spi.c to make it easier to read.
    nrf5/hal: Updating hal_twi.c tx implementation to a working state. STARTTX only issued once, before looping bytes.
    nrf5/examples: Updating ssd1306.py driver to work with i2c master write implementation.
    nrf5/hal: Updating hal_twi.c with tx function. Gets multiple startup bytes for each clocked byte.
    nrf5/hal: Updating hal_twi.c with tx function which partly works. Bytes are clocked out a bit out of order.
    nrf5/hal: Started implementation of hal_twi.c (non-DMA). Init function started.
    nrf5: Removing hal_twie.c from being compiled in.
    nrf5: Renaming configuration define in board configs using i2c from MICROPY_PY_MACHINE_HW_I2C to MICROPY_PY_MACHINE_I2C as the config is overlapping with the latter.
    nrf5: Renaming configuration define in board configs using i2c from MICROPY_PY_MACHINE_HW_I2C to MICROPY_PY_MACHINE_I2C as the config is overlapping with the latter.
    nrf5: Making i2c configurable from board configuration in case board has to sacrifice the i2c machine module.
    nrf5/boards: Activating all display drivers in pca10056 board.
    nrf5/boards: Updating s110 SD linker script for micro:bit.
    nrf5/i2c: Making use of hal twi tx function in writeto function.
    nrf5/hal: Updating twi driver with template functions.
    nrf5/hal: Updating TWI DMA implementation. Suspend not working on tx. Rx not implemented yet.
    nrf5/hal: Updating twi master tx with stop parameter.
    nrf5/hal: Adding i2c master functions for tx and rx in hal header.
    nrf5/hal: Adding new macros functions to mphalport.h which are used by extmod i2c machine module.
    nrf5/i2c: Adopting use of extmod/machine_i2c module as base for port's machine i2c module.
    nrf5/i2c: Backing up before trying out extmod i2c integration.
    nrf5: Adding i2c class to machine module globals table.
    nrf5: Updating main.c to initialize the i2c machine module if selected.
    nrf5/i2c: Updating i2c machine module with new constructor parameters to set scl and sda pins. Also updating print funciton to debug pin number and port number for the gpio set.
    nrf5/i2c: Updating i2c module to new new hal api, as master is initialized with its own init function.
    nrf5/hal: Adding members to TWI config struct, device address and scl/sda pin. Renaming and adding function such that twi slave and master has seperate init function. Started implementation of master init function for nrf52 using DMA (hal_twie.c).
    nrf5/i2c: Updating module to use new struct layout from hal_twi.h
    nrf5/hal: Updating TWI with frequency enums.
    nrf5/examples: Updating game file to use ssd1305 display driver.
    nrf5/drivers: Updating examples in comment in oled ssd1305 object to use the draw module.
    nrf5/hal: Fixing nrf51 SPI pin configuration to use pin member of struct.
    nrf5/boards: Updating boards to comply to new style of configuring pins for uart and spi.
    nrf5/boards: Updating board configuration for pca10056 (nrf52840) with new pin configuration scheme for SPI and UART.
    nrf5/hal: Updating hal QSPI header with define guard to filter out usage of undefined structures and names when compiling against non-52840 targets.
    nrf5/drivers: Updating display objects to use new SPI pin configuration in print function.
    nrf5/hal: Updating SPI DMA variant with more frequencies, and allowing rx and tx buffers to be NULL.
    nrf5/uart: Updating uart module to use new config hal config structure members for pins. Changing board config provided pins to use const pointers from generated pins instead of pin name.
    nrf5/hal: Updating uart hal to use pointers to Pin objects instead of uint pin and port number.
    nrf5/hal: Updating uart hal to use pointers to Pin objects instead of uint pin and port number.
    nrf5: Updating modmachine to add SPI in globals dict when MICROPY_PY_MACHINE_HW_SPI define is set. This diverge from regular MICROPY_PY_MACHINE_SPI config. Fixes missing SPI in the machine module after renaming port SPI enable define.
    nrf5: Updating main.c to enable SPI if MICROPY_PY_MACHINE_HW_SPI is set. This diverge from regular MICROPY_PY_MACHINE_SPI config. Fixing missing init of SPI after renaming port SPI enable define.
    nrf5/spi: Adding multiple instances of machine SPI depending on which chip is targeted (nrf51/nrf52832/nrf52540). Updating board config requirement to give variable name of const pointer to Pin instead of a Pin name. Adding support of giving keyword set mosi/miso/clk pin through constructor.
    nrf5/hal: Updating SPI hal with full list of SPI interfaces as lookup tables for all devices. Updating init struct to pass Pin instance pointers instead of uint pin number and ports.
    nrf5/drivers: Activate ssd1289 object in the display module.
    nrf5/boards: Adding ssd1289 lcd module in pca10040 (nrf52832) board.
    nrf5: Adding ssd1289 driver and python module into build.
    nrf5/drivers: Adding ssd1289 lcd tft driver and python module.
    nrf5/hal: Fixing compile issues in quad SPI driver.
    nrf5/hal: Updating Quad SPI hal driver.
    nrf5/hal: Aligning assignment in hal_adc.c
    nrf5/hal: Adding more types to quad SPI header.
    nrf5: Syncing code after upmerge with master.
    nrf5/hal: Updating clock frequency enums and lookup table for quad spi.
    nrf5/hal: Adding QSPI base and IRQ num in c-file.
    nrf5/hal: Adding hal template files for 32mhz Quad SPI peripheral.
    nrf5/drivers: Optimizing update_line in ili9341 driver a bit.
    nrf5/drivers: Adding space in macro.
    nrf5/drivers: Adding rgb16.h with macro to convert 5-6-5 rgb values into a 16-bit value.
    nrf5: Adding configuration defines for SSD1289 lcd driver.
    nrf5: Removing old framebuffer implementation.
    nrf5: Remove old framebuffer implementation from being included into the build.
    nrf5/drivers: Enable framebuffer and graphics module to be compiled in by default if display is selected into the compilation.
    nrf5/drivers: Updating epaper driver sld00200p to use new framebuffer.
    nrf5/drivers: Removing debug printf's from epaper display python module.
    nrf5/drivers: Updating python example in comment for ls0xxb7dxx display module.
    nrf5/boards: Enable LS0XXB7DXXX display module in pca10056 board config.
    nrf5/drivers: Adding ls0xxb7dxx to display module.
    nrf5: Adding ssd1305 and ls0xxb7dxxx (sharp memory display) drivers to be included in build.
    nrf5/drivers: Updating sharp memory display driver and python module to a working state.
    nrf5/spi: Adding posibility to configure SPI firstbit mode to LSB or MSB. Default is MSB. Updating python module and hal driver.
    nrf5/drivers: Tuning memory lcd driver a bit. Fixing small mp_printf usage bug.
    nrf5/drivers: Adding sharp memory display driver. For now hardcoded to 2.7 inch variant.
    nrf5: Adding configuration define for sharp memory display series in mpconfigport.h preparing for driver to be included.
    nrf5/boards: Enable ssd1305 oled display to be default for pca10028 for now.
    nrf5/drivers: Adding ssd1305 oled driver. This is very similar to ssd1306, so a merge will happen soon.
    nrf5/drivers: Adding ssd1305 oled driver. This is very similar to ssd1306, so a merge will happen soon.
    nrf5/drivers: Updating ili9341 display object to use new framebuffer.
    nrf5/drivers: Updating ili9341 driver to use new framebuffer, and removing the compressed param from the line update function.
    nrf5: Adding micropython mem_info() to be included in mpconfigport.h.
    nrf5/drivers: Adding example in comment on how to use the ili9341 driver with nrf51/pca10028 board.
    nrf5/examples: Adding a extra global variable to the game which breaks the game execution.
    nrf5/examples: Adding 2048 game using OLED SSD1306 128x64 display and analog joystick.
    nrf52/boards: Increasing the stack and heap in pca10056 (nrf52840) target from 2k/32k to 40k/128k to debug some buffer problems when running large frozen python programs.
    nrf51/boards: Increasing heap and stack size in the pca10028 board.
    nrf51/boards: Enable display driver and oled ssd1306 (also bringing in framebuffer and graphics module) into the pca10028 target.
    nrf5: Enable display/framebuffer.c and graphic/draw.c into the build.
    nrf5/drivers: Adding defines to exclude implementation of draw.c module if not enabled.
    nrf5: Adding configuration defines for the graphics module (draw) and enabling this by default if using oled ssd1306 display which has a compatible python object definition.
    nrf5/drivers: Adding draw module with circle, rectangle and text functions. Can be used by any display object which implements display callback functions.
    nrf5/drivers: Moving oled ssd1306 driver over to new framebuffer layout. Moving some of the draw algorithms into the object in order to optimize the speed on writing data from the framebuffer.
    nrf5/hal: Removing stdio.h include in adce.c which were used for debugging.
    nrf5/boards: Adding ADC pins in pins.csv file for pca10056 (nrf52840).
    nrf52/hal: Adding adce (saadc) implementation for nrf52 to sample values on a channel.
    nrf5/adc: Adding all 8 instances to adc python module. Valid for both nrf51 and nrf52.
    nrf5/drivers: Adding new structures to moddisplay. Adding a display_t structure to cast all other displays into, to retrieve function pointer table of a display object type. Also adding the function table structure which needs to be filled by any display object.
    nrf5/drivers: Adding a new framebuffer implementation to replace the mono_fb.
    nrf5/boards: Updating pca10028 (nrf51) board config. Enable SPI machine module. Enable flow control on UART. Correcting SPI CLK, MISO and MOSI pin assignments.
    nrf5/adc: Updating adc module and hal with a new interface. No need for keeping peripheral base address in structure when there is only one peripheral (nrf51).
    nrf5/rtc: Correcting RTC1 base error in rtc template.
    nrf5: Adding adc module to machine module.
    nrf5/hal: Updating hal_adc* with more api functions.
    nrf5/adc: Adding updated adc module.
    nrf5/boards: Enabling ADCE (SAADC) variant of adc hal to match hardware on nrf52 series.
    nrf5/boards: Adding ADC config to pca10028 pins.csv
    nrf5/boards: Tuning linker script for nrf51822_ac to get some more heap.
    nrf5: Updating nrf51_af.csv to reflect pins having ADC on the chip.
    nrf5/boards: Updating make-pins.py to generate ADC pin settings from board pins.csv.
    nrf5/hal: Updating hal_adc header to use correct Type for ADC on nrf52.
    nrf5/adc: Updating module to compile.
    nrf5/boards: Enable ADC machine module for pca10028, pca10040 and pca10056.
    nrf5: Add add ADC machine module into build.
    nrf5: Adding new config for ADC module in mpconfigport.h.
    nrf5/adc: Adding ADC machine module base files. Implementation missing.
    nrf5: Adding hal_adc* into build.
    nrf5/boards: Enable ADC/SAADC hal for pca10028 (nrf51), pca10040 (nrf52832) and pca10056 (nrf52840) boards.
    nrf5/hal: Removing chip variant guard for hal_adc*, and let this be up to the hal conf file to not mess up at the moment.
    nrf5: Add i2c.c, i2c machine module, and hal_twi into build.
    nrf5/boards: Enable hardware I2C machine module for pca10028 (nrf51), pca10040 (nrf52832) and pca10056 (nrf52840) boards.
    nrf5/boards: Enable TWI hal for pca10028 (nrf51), pca10040 (nrf52832) and pca10056 (nrf52840) boards.
    nrf5/i2c: Adding files for hardware i2c machine module and adding config param in mpconfigport to disable by default.
    nrf5/hal: Adding template files for TWI (i2c) hal.
    nrf5/hal: Adding template files for ADC hal.
    nrf5/drivers: Correcting tabbing in oled ssd1306 c-module.
    nrf5/boards: Enable SSD1306 spi driver for pca10040 (nrf52832) and pca10056 (nrf52840) boards.
    nrf5/drivers: Adding SSD1306 SPI display driver. Not complete, but can do fill screen operation atm.
    nrf5/drivers: Adding epaper display example script in comment for pca10056 / nrf52840 in the display module.
    nrf5/boards: Enable PWM module and epaper display module in pca10056 board config.
    nrf5/drivers: Adding some more delay on bootup to ensure display recovers after reset.
    nrf5/examples: Adding copy of ssd1306.py driver hardcoded with SPI and Pin assignments.
    nrf5/drivers: Updating ili9341 driver to set CS high after cmd or data write.
    nrf5/drivers: Extending print function for ili9341 object to also print out gpio port of the SPI pins.
    nrf5/boards: Giving a bit more heap for nrf52840 linker script.
    nrf5/drivers: bugfix of the sld00200p driver. Stopping the pwm instead of restarting it. Shuffle placement of static function.
    nrf5/drivers: Correcting object print function to also include port number of the SPI pins. Correcting usage script example in comment.
    nrf5/drivers: Adding an initial script as comment for ili9341 on nrf52840/pca10056 in the driver module comment.
    nrf5/examples: Removing tabs from epaper python script usage comment, so that it is easier to copy paste.
    nrf5/hal: Refining if-defs to set up GPIO base pointers in mphalport.h
    nrf5/devices: Removing define which clutters ported modules from nrf.h.
    nrf5/boards: Enabling spi in pca10056 hal config.
    nrf5/boards: Enabling ili9341 display drivers and to be compiled in on pca10056 target board. Updating SPI configuration with gpio port.
    nrf5/boards: Enabling display drivers/spi/pwm to be compiled in on pca10040 target board. Updating SPI configuration with gpio port.
    nrf5/hal: Correcting SPI psel port position define name to the one defined in nrf52840_bitfields.h
    nrf5/led: Hardcoding GPIO port 0 for Led module for now.
    nrf5/hal: Changing import of nrf52 includes in hal_uarte.c to not be explicit. Now only nrf.h is included.
    nrf5: Updating pin, spi and uart to use port configuration for gpio pins. Update pin generation script, macros for PIN generation. Updating macros for setting pin values adding new port parameter to select the correct GPIO peripheral port.
    nrf5/boards: Disable SPI hal from pca10001 board.
    nrf5/boards: Disable SPI/Timer/RTC hal from microbit board.
    nrf5: Exclude import of pwm.h in modmachine.c if MICROPY_PY_MACHINE_PWM is not set, as nrf51 does not yet have this module yet.
    nrf5: Exclude import of pwm.h in main.c if MICROPY_PY_MACHINE_PWM is not set, as nrf51 does not yet have this module yet.
    nrf5/drivers: Block nrf51 from compiling epaper_sld00200p for the moment. There is no soft-pwm present yet, and including pwm would just make compilation fail now.
    nrf5/hal: Making nrf51/2_hal.h go trough nrf.h to find bitfields and other mcu headers instead of explicit include.
    nrf5/boards: Adding more pins to nrf52840 / pca10056 target board.
    nrf5/pin: Adding more pins to nrf52_af.csv file for nrf52840. Port '1' will be prefixed 'B'.
    nrf5/pin: Adding PORT_B to Pin port enum to reflect gpio port 1 on nrf52840.
    nrf5/boards: Updating all board configs with gpio port configuration for uart/spi pins. Leds still not defined by gpio port.
    nrf5/devices: Updating header files for nrf51 and nrf52. Adding headers for nrf52840.
    nrf5: Updating to use new nrfjprog in makefile. Needed for nrf52840 targets. Changed from pinreset to debug reset.
    nrf5/boards: Updating makefiles to use system.c files based on sub-variant of mcu.
    nrf5/devices: Renaming system.c files for nrf51 and nrf52 to be more explicit on which version of chip they are referring to.
    nrf5/drivers: Backing up working epaper display (sld00200p shield) driver before refactoring.
    nrf5/drivers: Fixing parenthesis in ILI9341 __str__ print function.
    nrf5/pwm: Moving out object types to header file so that it can be resused by other modules.
    nrf5/drivers: Updating a working version of ili9341 module and driver. About 10 times faster than python implementation to update a full screen.
    nrf5: Started to split up lcd_mono_fb such that it can be used as a c-library and python module with the same implementaton.
    nrf5/hal: Adding include of stdbool.h in hal_spi.h as it is used by the header.
    nrf5/drivers: Adding preliminary file for ili9341 lcd driver.
    nrf5/hal: Adding support for NULL pointer to be set if no rx buffer is of interest in SPI rx_tx function.
    nrf5: Adding ili9341 class and driver files in Makefile to be included in build.
    nrf5/drivers: Adding template files for upcomming ili9341 driver.
    nrf5/drivers: Adding lcd ili9341 object implementation to make a new instance. print implemented for debugging pins assigned to the display driver. No interaction yet with the hal driver.
    nrf5/drivers: Adding ILI9341 class to the display global dict.
    nrf5/boards: Changing tft lcd display name from SLD10261P to ILI9341 in pca10040 board configuration.
    nrf5: Moving out mp_obj_framebuf_t to the header file to get access to it from other modules. Exposing helper function to make new framebuffer object from c-code.
    nrf5: Trimming down display configurations in mpconfigport.h
    nrf5/spi: Moving *_spi_obj_t out of implementation file to header. Setting hal init structure in the object structure instead of making a temp struct to configure hal. This would enable lookup of the spi settings later.
    nrf5: Removing epaper, lcd and oled modules from Makefile source list as the display modules has been moved to display root folder.
    nrf5/drivers: Removing one level of module hierarchy in display drivers. Removed epaper, lcd and oled modules, making import of classes happen directly from display module.
    nrf5/drivers: Creating python object implementation (locals) to be used for epaper sld00200p.
    nrf5: Moving color defines in lcd_mono_fb from .c to .h so that it can be reused by other modules.
    nrf5: Enable MICROPY_FINALISER and REPL_AUTO_INDENT.
    nrf5/drivers: Adding requirement for nrf52 target on the epaper sld00200p for now. There is no ported PWM module for nrf51 target yet. Hence, soft PWM for nrf51 needs to be added.
    nrf5: Adding suffix to _obj on epaper_sld00200p module.
    nrf5: Correcting define name for epaper sld00200p, missing 0.
    nrf5/drivers: Enable EPAPER_SLD00200P in epaper module globals table.
    nrf5/drivers: Adding missing file for epaper module / driver.
    nrf5/modules: Moving python scripts to examples folder to free up some flash space on constrained targets as modules folder is used as frozen files folder.
    nrf5/boards: Enable display module to be built in. Also adding one epaper display and one tft lcd to test display module when porting the corresponding drivers to micropython.
    nrf5/drivers: Removing external decleration of display module in header.
    nrf5/drivers: Renaming display module to mp_module prefix as it is going to be inbuilt. ifdef'ing all submodules based on type of display configured through mpconfigport.h
    nrf5/drivers: Adding ifdef sourrounding the implementation of module. Configurable with mpconfigport.h.
    nrf5: Adding display module to port builtins.
    nrf5/drivers: Adding driver files to makefile. Implicitly adding display module.
    nrf5/drivers: Adding template for c-implementation of lcd, epaper and oled drivers as a display module.
    nrf5/modules: Updating to correct name of display in epaper driver.
    nrf5/modules: Adding python epaper display driver. Currently colors have been reversed.
    nrf5/hal: Fixing bug in mp_hal_pin_read in mphalport.h which tried to read an OUT register. Corrected to read the IN register.
    nrf5: Adding sleep_us to modutime.c and exposing mp_hal_delay_us in hal/hal_time.h
    nrf5/lcd: Updating framebuffer with double buffer for epaper displays. Moving statics into instance struct. Adding new function to refresh using old buffer, such that epaper can get a cleaner image after update.
    nrf5/boards: Adding initial microbit build files and board configurations.
    nrf5: Makefile option to set FLASHER when doing flash target. If defined in board .mk file, this will be used, else nrfjprog will be used by default (segger). This opens up for using pyocd flashtool and still run 'make flash'.
    nrf5/boards: Updating pca10028 board config to not define RTS/CTS pins when HWFC is set to 0.
    nrf5/uart: Making compile time exclusion of RTS/CTS if not defined to use flow control by board configuration.
    nrf5/spi: Removing automatic chip select (NSS) in hal_spi.c. Also removing configuration of this pin as it is confusing to pass it if not used. User of SPI has to set the NSS/CS itself.
    nrf5/modules: Updating PWM test python script to cope with new api.
    nrf5/hal: Fixing some issues in PWM stop function. Doing a proper stop and disable the peripheral.
    nrf5/pwm: Implementing start and stop call to hal on init and deinit as hal_init does not longer start the PWM automatically.
    nrf5/hal: Exposing two new PWM hal functions start() and stop().
    nrf5/hal: Moving enablement of PWM task from init to a start function. Also activating code in stop function to stop the PWM.
    nrf5/modules: Adding licence text on seeedstudio tft shield python modules.
    nrf52/boards: Tuning linker script for nrf52832 when using iot softdevice. Need more heap for LCD framebuffer.
    nrf5/lcd: Adding lcd_mono_fb.c to source list in the makefile. Adding define in implementation to de-select the file from being included. Adding module to PORT BUILTIN in mpconfigport.h
    nrf52/sdk: Correcting path to iot softdevice if SDK is enabled.
    nrf5: Adding help text for CTRL-D (soft reset) and and CTRL-E (paste mode) in help.c
    nrf5: Adding handling of CTRL+D to reset chip in main.c. Call to NVIC System Reset is issued.
    nrf5/lcd: Correcting indention (tabs with space) in framebuffer module source and header.
    nrf5/lcd: Changing framebuffer to use petme128 8x8 font. This is vertical font. Code modified to flip and mirror the font when rendering a character. Adding copy of the font from stmhal.
    nrf5/modules: Adding new driver for seeedstudio tft shield v2, using new framebuffer module which handles faster update on single lines, callback driven write on each line which is touched in the framebuffer.
    nrf5/lcd: Adding header file for lcd_mono_fb.
    nrf5/lcd: Updating brackets in framebuffer module.
    nrf5/lcd: Renaming variable name from m_ to p_
    nrf5/lcd: Cleaning up a bit in lcd framebuffer.
    nrf5/lcd: Adding work in progress monochrome lcd framebuffer driver which only updates modified (dirty) display lines.
    nrf5/modules: Updating pulse test to set output direction on the LED pin used in the test.
    nrf5/modules: Updating seeedstudio tft lcd driver to render using already existing framebuffer implementation.
    nrf5/boards: Bouncing up heap to 32k  on pca10040 to allow for application to allocate 9600bytes+ framebuffer when using LCD screen (240x320).
    nrf5/modules: Adding a function to get access to the SD card flash drive on the seeedstudio tft shield.
    nrf5/modules: Adding new python script to initialize and clear the display on Seeedstudio 2.8 TFT Touch Shield v2.
    nrf5/modules: Updating documentation on sdcard.py copy to use new params in the example description
    nrf5/modules: Updating mountsd, SD card test script with new params.
    nrf5/pin: Merging input and output pin configuration to one comon function. Adding implementation in Pin class to be able to configure mode and pull. Updating drivers which uses gpio pin configuration to use new function parameters.
    nrf5: Adding rtc.c which implements the machine rtc module to be included in build.
    nrf5/boards: Enable MICROPY_PY_MACHINE_RTC in pca10028 (nrf51) and pca10040 (nrf52) targets.
    nrf5/hal: Adding empty init function in hal_rtc.c
    nrf5/hal: Adding structures and init function prototype to hal_rtc.h.
    nrf5: Setting MICROPY_PY_MACHINE_RTC to disabled by default (during development) in mpconfigport.h. This can be overriden by board config.
    nrf5/rtc: Adding skeleton for machine rtc module for nrf51/52.
    nrf5: Adding timer.c which implements the machine timer module to be included in build.
    nrf5: Setting MICROPY_PY_MACHINE_TIMER to disabled by default (during development) in mpconfigport.h. This can be overriden by board config.
    nrf5/boards: Enable MICROPY_PY_MACHINE_TIMER in pca10028 (nrf51) and pca10040 (nrf52) targets.
    nrf5: Adding initialization of timer module if enabled by MICROPY_PY_MACHINE_TIMER.
    nrf5/timer: Adding initializaton of id field for Timer_HandleTypeDef's. Adding simple print function. Adding make_new function. Enabling the functions in machine_timer_type.
    nrf5/hal: Adding empty init function in hal_timer.c
    nrf5/hal: Adding structures and init function prototype to hal_timer.h.
    nrf5/timer: Adding skeleton for machine timer module for nrf51/52.
    nrf/boards: Adding RTC and TIMER hal to be linked in when implemented. Enable one board for nrf51 and one for nrf52 for ease of debugging when implementing the hal.
    nrf5: Adding rtc and timer hal to Makefile.
    nrf5/hal: Adding skeleton files for rtc and timer driver.
    nrf5/modules: Updating pulse example to work with Pin object instead of hard coded pin number.
    nrf5/pwm: Switching from hardcoded pin number to Pin object type as input to the new() function. Also changing the parameter from kw to arg.
    nrf5/modules: updating test python file with correct PWM frequency type.
    nrf5/modules: Adding a python test file with function to dim a specific led (17).
    nrf5/pwm: Updating pwm module with freq function which re-initilises the PWM instance such that new frequency will be applied.
    nrf5/pwm: Initializing pwm instances in main.c if enabled by MICROPY_PY_MACHINE_PWM.
    nrf5/pwm: Adding api to initialize pwm instances.
    nrf5: Updating mpconfigport.h to set a default for PWM machine module to be enabled by default, if not disabled in a board config. Refactoring order in the file.
    nrf52: Set names to be used on PWM0-2 in board config. For nrf52840, the PWM3 is excluded as repo does not have latest headers to reflect this yet. Bump up to be done soon.
    nrf52: Enable PWM HAL for both pca10040 (nrf52832) and pca10056 (nrf52840).
    nrf51: Disable MICROPY_PY_MACHINE_PWM for now in all nrf51 target boards as sw impl. is not yet included in the repo.
    nrf5: Only enable hal_pwm.c if nrf52 target as nrf51 must have a sw implementation.
    nrf5/pwm: Adding pwm to modmachine.c
    nrf5/hal: Updating PWM header file with init function prototype. Also added PWM_HandleTypeDef structure that can be used in the pwm python module.
    nrf5/pwm: Updating PWM dict table to have freq and duty function. Also added creation of default objects based on PWM name set in board config. Adding ifdef surrounding the import of hal_pwm.h as this module might be used by software implmentation of PWM later.
    nrf5/pwm: Removing include of hal_pwm.h as pwm.c might not use a hal, but sw implementation.
    nrf5: Updating makefile to compile in pwm.c and hal_pwm.c
    nrf5/boards: Adding config flag for HAL_PWM in pca10040 and pca10056.
    nrf5: Adding pwm work in progress machine PWM module.
    nrf5/hal: Starting implementation of PWM hal to be used by PWM python module later.
    nrf5: Adding initial board files for pca10056. The files are not complete (only 32 pins are added for now). UART REPL, leds, and Pins (up to 31) are functional.
    nrf5: Updating comment in linker script for nrf52832 and nrf52840 to distinguish between the two nrf52 variants.
    nrf5: Adding new linker script for nrf52840.
    nrf5: updating flash size comment in nrf52832 linker script.
    lib/netutils: Adding some basic parsing and formating of ipv6 address strings. Only working with full length ipv6 strings. Short forms not supported at the moment (for example FE80::1, needs to be expressed as FE80:0000:0000:0000:0000:0000:0000:0001).
    nrf5: Updating port with new content. SPI, SDcard (trough sdcard.py), Pin, and machine module. Also adding some basic modules depending on SDK and bluetooth stack from nordic semiconductor. NUS is module copied from original port by tralamazza, and new basic module for 6lowpan over BLE which can be used by modnetwork and modusocket. Basic BLE module to enable bluetooth stack and start a eddystone advertisment is kept, and still works without SDK, even if in the SDK folder (its placed there as it needs bluetooth stack from an SDK).
    Renaming softdevice folder to sdk.
    Removing unused 'NRF_SOFTDEVICE' compile variable from all board .mk softdevice targets.
    Fixing main Makefile CFLAGS concatination error when setting softdevice param

Daniel Tralamazza <daniel@tralamazza.com>
    ignore default build folders
    move softdevice (SD) specific code from the main Makefile to their respective board/SD makefiles

Glenn Ruben Bakke <glennbakke@gmail.com>
    Updating Makefile by removing unwanted LDFLAG setting cpu to cortex-m0 in all cases.
    Updating modble.c method doc of address_print() to reflect the actual function name.
    Base support for nrf51 and nrf52 base without depending on SDK. SoftDevice usage optional.

Daniel Tralamazza <daniel@tralamazza.com>
    remove dup declaration mp_builtin_open_obj
    init

Date of "init" commit: Wed Jun 22 22:34:11 2016 +0200
2018-07-18 17:12:25 +10:00