b4be2317cb
By pausing audio during flash writes, the worst screeching of #8121 is avoided. I don't consider this a full fix, but it greatly improves the by far most common scenario in which the problem occurs. Tested on rp2040 prop feather with a midi synth playing arpeggios. When writing to the flash e.g., with ``` dd bs=512 count=32 if=/dev/zero of=/media/jepler/CIRCUITPY/boop ``` the audio goes "tap tap tap tap" during the flash write instead of the squawking. This isn't a 100% fix; it will still glitch out, including during USB enumeration which must be taking a long time without servicing background tasks. Add a delay if not usb-connected at startup ameliorates this greatly. |
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|---|---|---|
| .. | ||
| bindings | ||
| boards | ||
| common-hal | ||
| lib | ||
| lwip_inc | ||
| lwip_src | ||
| mbedtls | ||
| peripherals | ||
| pioasm | ||
| sdk@2ccab115de | ||
| sdk_config/pico | ||
| supervisor | ||
| audio_dma.c | ||
| audio_dma.h | ||
| background.c | ||
| background.h | ||
| boot_stage2.ld | ||
| flash_info.h.jinja | ||
| gen_stage2.py | ||
| link.ld | ||
| Makefile | ||
| mpconfigport.h | ||
| mpconfigport.mk | ||
| mphalport.c | ||
| mphalport.h | ||
| qstrdefsport.h | ||
| README.rst | ||
| stage2.c.jinja | ||
RP2040
==================
This port supports many development boards that utilize RP2040 chips. See
https://circuitpython.org/downloads for all supported boards.
Building
--------
For build instructions see this guide: https://learn.adafruit.com/building-circuitpython/
Port Specific modules
---------------------
.. toctree::
../../shared-bindings/rp2pio/index