circuitpython

Commit Graph

Author	SHA1	Message	Date
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
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

Author

SHA1

Message

Date

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

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

2 Commits