Jeff Epler
77b0c76a37
raspberrypi: audiopwmout: simple fix for #5092
2021-08-24 15:54:06 -05:00
Dan Halbert
35aac3d26b
display SPI now 10MHz; set PWM duty cycle to zero at stop to quiet output
2021-08-11 10:48:53 -04:00
Dan Halbert
24e61a7da8
Track more carefully which audio buffers to fill, based on interrupt channels
2021-08-10 22:00:09 -04:00
Dan Halbert
2451c788f4
valid channels in audio_dma_stop; cleaner supervisor_ticks mgmt in keypad
2021-08-09 09:47:13 -04:00
Dan Halbert
bd6826496c
Fix various RP2040 audio dma things: (see detailed commit message)
...
1. Check for correct error values from dma_claim_unused_channel.
2. Introduce a .stereo flag for simplicity.
3. Clarify PWM carrier frequency choice.
4. Start introducing quiescent audio value. Still need to ramp up/down.
5. Redo audio stop logic a bit.
6. Fix (unrelated) displayio dependency things.
There is still an interference problem between other DMA users and audio. Still debugging this.
2021-07-08 08:14:49 -04:00
Dan Halbert
33bbb8b1f4
RP2040 PWMAudioOut: Release DMA channels after play has finished.
2021-07-01 17:36:29 -04:00
root
8761e4bfd7
Initialize pacing timer
2021-05-30 12:12:38 -05:00
root
a2b220370e
Fix formatting issue
2021-05-29 12:26:41 -05:00
root
760e8c77bd
Changes to correct repeat playing on a channel
2021-05-29 11:55:10 -05:00
root
24e641a834
Fix for Issue #4266
2021-05-25 16:06:00 -05:00
microDev
a52eb88031
run code formatting script
2021-03-15 19:27:36 +05:30
Scott Shawcroft
191b143e7b
Add PWM based audio playback
...
See
https://learn.adafruit.com/circuitpython-essentials/circuitpython-audio-out
to get started.
Fixes #4037
2021-02-09 15:38:33 -08:00
