circuitpython/ports/raspberrypi/common-hal/audiobusio
Scott Shawcroft 360475e266
Implement audiobusio and enhance PIO for it
This adds I2SOut and PDMIn support via PIO.

StateMachines can now:
 * read and read while writing
 * transfer in 1, 2 or 4 byte increments
 * init pins based on expected defaults automatically
 * be stopped and restarted
 * rxfifo can be cleared and rxstalls detected (good for tracking when
   the reading code isn't keeping up)

Fixes #4162
2021-02-23 15:50:00 -08:00
..
I2SOut.c Implement audiobusio and enhance PIO for it 2021-02-23 15:50:00 -08:00
I2SOut.h Implement audiobusio and enhance PIO for it 2021-02-23 15:50:00 -08:00
PDMIn.c Implement audiobusio and enhance PIO for it 2021-02-23 15:50:00 -08:00
PDMIn.h Implement audiobusio and enhance PIO for it 2021-02-23 15:50:00 -08:00
__init__.c Implement audiobusio and enhance PIO for it 2021-02-23 15:50:00 -08:00