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802 Commity
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72 Tagi
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150 Commity (5b6c220e2add836bcb172544e9cf110e73a0bd48)

Autor SHA1 Wiadomość Data
Mike Bell d96a584ddd Badger2040: Improve performance of some large frame buffer writes 2022-03-29 23:15:43 +01:00
Phil Howard b1fd8936cf Badger2040: Enforce minimum update blocking time. 2022-03-25 10:57:30 +00:00
Phil Howard 8ca91f8e23 PMW3901: Drop print from init. 2022-03-18 13:35:14 +00:00
Philip Howard 273ca5c56d
Merge pull request #252 from pimoroni/badger2040-support 
Support for Badger 2040
 2022-02-25 16:25:22 +00:00
Phil Howard f90559ed41 Badger2040: Add support for colour inverted mode 2022-02-25 14:49:28 +00:00
Phil Howard 169e332917 Badger2040: Add Medium speed, drop spicy super turbo 2022-02-25 13:37:35 +00:00
Phil Howard 6ff5c39c1b Badger2040: Bugfixes, danger LUTs, examples 2022-02-25 11:08:32 +00:00
Phil Howard af230b5fd5 Badger2040: Refactor to fix MicroPython issues 
Move busy wait logic into MicroPython bindings so that MICROPY_EVENT_POLL_HOOK can be called.
 2022-02-25 11:08:32 +00:00
Phil Howard 5b084c1b9a Badger2040: Add Fast/Slow LUTs, bugfix and tinkering helpers 2022-02-25 11:08:32 +00:00
Phil Howard 607320c4b6 Badger2040: Fix broken display on reset 
Display configuration wasn't applied properly upon reset. Add additional delay to reset and configure busy_wait pulls.
 2022-02-25 11:08:32 +00:00
Phil Howard 46d54072ce Badger2040 MicroPython bindings 2022-02-25 11:08:32 +00:00
Phil Howard 5f52626a4f Add partial update support 2022-02-25 11:08:32 +00:00
Jonathan Williamson f7d61b587a added support for badger2040 2022-02-25 11:08:31 +00:00
ZodiusInfuser 95142ffeb5 Fix for display glitch during screen initialisation 2022-02-14 12:57:34 +00:00
Phil Howard c105d111af ICP10125: Fix block indefinitely on repeated start 
Should fix pimoroni/icp10125-python#2
 2022-02-10 12:28:57 +00:00
Phil Howard 25bebd888f Use .begin() and .size() as per #213 
Correct `I2C::write_bytes` to accept a `const uint8_t*` for the array of bytes.
 2022-01-25 18:20:54 +00:00
Phil Howard 0eeada72d7 New driver for SCD4X series CO2 sensors 
Submodule Sensirion's embedded-i2c-scd4x driver
Add i2c_hal.cpp to binds it to Pimoroni::I2C
Port (loosely) scd4x_i2c_example_usage.c to Pico
 2021-12-16 11:39:11 +00:00
Philip Howard 9f6ddb86ae
Merge pull request #218 from ProgramMax/main 
Improve ST7789 frame rate ~4x
 2021-12-08 15:50:48 +00:00
Philip Howard c322717eb2
Merge pull request #193 from pimoroni/pure-cpp-i75 
Pure C++ HUB75 example
 2021-12-08 15:25:53 +00:00
Phil Howard 580d8cf7a2 Plasma: Add WS2812 W suppot for #220 2021-12-03 10:50:06 +00:00
Phil Howard 1bb4383074 HUB75 Perf, C++ scrolling text, docs 2021-12-02 12:41:30 +00:00
Phil Howard 4dc3f9b9c4 HUB75 Scrolling wavy text and clock demo 2021-12-01 21:57:40 +00:00
Phil Howard 8ae311e3a5 HUB75 Drop multicore include 2021-11-30 13:04:46 +00:00
Phil Howard c70a9fbb3d HUB75 Optimize performance maybe 2021-11-26 21:36:44 +00:00
Phil Howard 4d33649cd2 HUB75: More rational DMA/PIO setup/teardown, fixes reset bug 
Defensively tear down DMA/PIO so it's in a known good state upon (soft)reset.

Issue was a race condition with DMA interrupts firing and not being achknowledged, leaving a stuck raised IRQ.

The blocking wait for DMA transactions also exacerbated this, turning a borken DMA interrupt and blank screen into an unrecoverable hardlock.

...not that the blank screen was recoverable without a soft reset anyway!
 2021-11-25 17:52:44 +00:00
Phil Howard c556391be3 HUB75 Clock example, brightness tweak 2021-11-25 16:37:46 +00:00
Phil Howard e09ff78351 HUB75 Strobe invert and larger panel chaining support 2021-11-24 21:36:58 +00:00
Phil Howard 30a455a9d5 HUB75 Less RAM, DMA flip 
Switch from 12-bit to 10-bit gamma to fit RGB into a uint32_t. Simplifies PIO and halves the RAM usage for F/B buffer.

Switch "flip" to *literally* swap the front and back buffers, and then asyncronously DMA the new back buffer into the front ready for the next draw.
 2021-11-24 19:31:00 +00:00
Phil Howard 069ca38ae7 HUB75 Clear TX FIFOs for MicroPython soft reset glitch 2021-11-23 15:09:03 +00:00
Phil Howard d4bf69324f HUB75 tidyup, examples 2021-11-23 13:58:34 +00:00
Chris Blume 261d2732f0 Improve ST7789 frame rate ~4x 
The ST7789's Tscycw (time between serial write clock cycles) is
16 ns. This can be found on page 44 of the datasheet I'm using:
https://www.waveshare.com/w/upload/a/ae/ST7789_Datasheet.pdf

(I do not know which manufacturer Pimoroni products use and if
their parts might be different. But it seems like this wouldn't
change.)

The existing code sets the SPI baud to 16 * 1000 * 1000. But baud
is Hz, not seconds. That 16 * 1000 * 1000 doesn't represent 16 ns.
It represents 16,000,000 Hz.

16 ns * (1 Hz / s) = 62,500,000 Hz.

This commit changes the baud from 16 * 1000 * 1000 to 62'500'000,
representing ~4x speed improvement in SPI and thus ~4x frame rate
improvement, since the display's frame rate is currently
SPI-limited.

A before & after video can be seen here:
https://www.youtube.com/watch?v=n2y19TCnATo

Note that also on page 44 of that datasheet Tscycr (the read speed)
is only 150 ns, not 16 ns. Right now, the Pimoroni code doesn't read
any values back from the ST7789 so it is safe to operate at the
higher speed.

Also note that the 16 * 1000 * 1000 is the requested baud. The actual
baud is the closest the Pico can get, which is 15,625,000.
The new requested baud of 62'500'000 results in an exact match.
 2021-11-11 15:36:13 -08:00
Philip Howard e249113fea
Merge pull request #183 from pimoroni/driver/icp10125 
Driver for the ICP10125 pressure & temperature sensor
 2021-11-09 17:02:50 +00:00
Philip Howard 1a9e2802fe
Merge pull request #206 from pimoroni/driver/pwm3901 
C++ and MP drivers and examples for Optical Flow sensors
 2021-10-06 11:19:29 +01:00
Philip Howard ff9dcca91b
Merge pull request #205 from pimoroni/patch-plasma-gamma 
plasma: add gamma correction
 2021-10-06 11:17:38 +01:00
ZodiusInfuser 27b74e140b Finished drivers bindings and examples for flow sensors. 2021-09-13 21:58:11 +01:00
Phil Howard 7375a208c6 make GAMMA common 
Moves the 256 entry GAMMA table into pimoroni_common.

Should probably be added into a library so MicroPython is built with only one instance of the table.
 2021-09-13 17:40:51 +01:00
Phil Howard 5a7f375ebf plasma: add gamma correction 2021-09-13 17:35:25 +01:00
Phil Howard 759868e787 Python bindings & docs for ICP10125 2021-09-08 14:10:21 +01:00
Phil Howard 7f486314db Driver for ICP10125 temperature/pressure sensor 2021-09-08 14:09:54 +01:00
Phil Howard 240eab7ccf Tweak 320x240 init to avoid flicker 2021-09-08 13:56:03 +01:00
Phil Howard cfe0f8731e Fix bugs in 320x240 display init 2021-09-08 13:56:03 +01:00
ZodiusInfuser 84a81be9d6 Fixed colour ordering 2021-09-08 13:56:03 +01:00
Phil Howard 9ba3a6cfab 320x240 LCD library + tweaks to ST7789 driver 
Add the init required for the 320x240 2.0" LCD.

Add an option to set baudrate, 320x240 needs 74MHz for 60FPS

Add library and example for 320x240 2.0 LCD.
 2021-09-08 13:55:57 +01:00
ZodiusInfuser 91dfbfdac5 Added PAA secret sauce 2021-09-07 16:23:32 +01:00
ZodiusInfuser a06fff3cbf Added frame capture support and demo 2021-09-07 16:23:32 +01:00
ZodiusInfuser 77f082a984 Initial setup for PMW/PAA flow sensor 2021-09-07 16:23:32 +01:00
Phil Howard b5c7add90d APA102: Extra clocks to flush pixels 
This covers an edge case where pixels are updated intermittently - such as the once that happens when clearing before a Python soft reset.

Under normal circumstances users should `start` the LED strip and allow it to continuously update.
 2021-08-26 18:14:39 +01:00
Phil Howard 2cc6514583 Slow set/clr_bit writes a little 
We chased a bug with handling/clearing interrupts on Encoder into the depths of madness, finding that a Debug build would magically fix the bug.

Turns out it was probably just us being a little aggressive with the poor little MS51-based Encoder driver.

* Fix delays to be more delayey.
* Replace big 'ol loop and boolean with straight up checks and an early exit- the bit-addressed regs are never going to change
 2021-08-26 16:35:05 +01:00
Philip Howard 07f3d65a14
Merge pull request #194 from pimoroni/patch_plasma2040_examples 
Extra examples and bug fixes for Plasma2040
 2021-08-26 14:36:22 +01:00
Phil Howard e283d460d4 Make ws2812 and apa102 responsibly only for their own buffers 
This fixes a bug where delete[] would be called on a bytearray buffer allocated by MicroPython on gc_heap.
 2021-08-25 22:00:16 +01:00