Add all python code run on the device to the manifest.py to freeze
it. This has two benefits:
- It precompiles the bytecode, so it is smaller and faster
- All code (C and python) is now in the firmware image, leaving the
littlefs filesystem on the flash free for user settings.
This requires changing the way the hardware variants are handled. There
is now only one _filesystem_ image, but instead there are different
_firmware_ images for each variant.
Signed-off-by: Matthias Blankertz <matthias@blankertz.org>
This is the skeleton of the code that will run on core1 to perform the
audio decoding and output. In this initial commit, the module
infrastructure, starting code on core1, and the I2S audio driver with
DMA are implemented.
Signed-off-by: Matthias Blankertz <matthias@blankertz.org>
