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Tested on rp2.

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Peter Hinch 2021-03-14 14:40:29 +00:00
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README.md
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@ -86,7 +86,9 @@ GUI supports multiple displays attached to a single target, but bear in mind
the RAM requirements for multiple frame buffers. The GUI has been tested on the RAM requirements for multiple frame buffers. The GUI has been tested on
Pyboard 1.1, Pyboard D and on the ESP32 reference board without SPIRAM. Running Pyboard 1.1, Pyboard D and on the ESP32 reference board without SPIRAM. Running
on ESP8266 is possible but frozen bytecode must be used owing to its restricted on ESP8266 is possible but frozen bytecode must be used owing to its restricted
RAM. RAM. As of 14th March 2021 it has been tested on the Raspberry Pi Pico. The
`color15` demo fails because the firmware lacks `uos.urandom()` but hopefully
it will be fixed soon.
It uses synchronous code but is compatible with `uasyncio`. Some demo programs It uses synchronous code but is compatible with `uasyncio`. Some demo programs
illustrate this. Code is standard MicroPython, but some device drivers use the illustrate this. Code is standard MicroPython, but some device drivers use the
@ -233,9 +235,8 @@ The `gui/core` directory contains the GUI core and its principal dependencies:
* `fplot.py` The graph plotting module. * `fplot.py` The graph plotting module.
* `colors.py` Color constants. * `colors.py` Color constants.
* `framebuf_utils.mpy` Accelerator for the `CWriter` class. This optional file * `framebuf_utils.mpy` Accelerator for the `CWriter` class. This optional file
is compiled for STM hardware and will be ignored on other ports (with a is compiled for STM hardware. It is specific to Pyboards (1.x and D) and will
harmless warning message) unless recompiled. Instructions and code for be ignored on other ports. Details may be found
compiling for other architectures may be found
[here](https://github.com/peterhinch/micropython-font-to-py/blob/master/writer/WRITER.md#224-a-performance-boost). [here](https://github.com/peterhinch/micropython-font-to-py/blob/master/writer/WRITER.md#224-a-performance-boost).
###### [Contents](./README.md#contents) ###### [Contents](./README.md#contents)

8
gui/core/writer.py
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@ -25,9 +25,9 @@ import framebuf
from uctypes import bytearray_at, addressof from uctypes import bytearray_at, addressof
from sys import platform from sys import platform
__version__ = (0, 4, 1) __version__ = (0, 4, 2)
fast_mode = platform != 'rp2' # framebuf_utils crashes RP2 fast_mode = platform == 'pyboard'
if fast_mode: if fast_mode:
try: try:
try: try:
@ -39,8 +39,8 @@ if fast_mode:
fast_mode = False fast_mode = False
except ValueError: except ValueError:
fast_mode = False fast_mode = False
if not fast_mode: if not fast_mode:
print('Ignoring framebuf_utils.mpy: compiled for incorrect architecture.') print('Ignoring missing or invalid framebuf_utils.mpy.')
class DisplayState(): class DisplayState():