Max/earlephilhower_arduino-pico
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Code Issues 4 Pull Requests Actions Packages Projects Releases 128 Wiki Activity
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1bfd07c19a5a0485901acdb3943d7d8cedd6b2f1
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4 Commits
Author SHA1 Message Date
Earle F. Philhower, III b6cb2e7edc Avoid race condition in I2S/PWMAudio delete (#1163) 
Fixes #1162

Disable DMA interrupts while we're tearing down an AudioBufferManager
and explicitly clear any potential leftover IRQs to avoid hangs.
 2023-02-09 13:29:45 -08:00
Earle F. Philhower, III da26016edf DMA-based ADC input (microphone, analog sensor) (#1101) 
Mimics the I2S/PWMAudio/Stream interface for ease of use.

* Fix non-32b DMA size transfer calculation in ABM
* Rename wasHolding to isHolding in the I2S/PWM
  It is the **current** number of bits left, not the past number.
* Add commented microphone example
* Add docs
 2023-01-05 16:00:34 -08:00
Earle F. Philhower, III 02465b48b3 Allow on-the-fly changes to PWMAudio when possible (#1098) 
Also fix crash on PWMAudio::end()
 2023-01-03 16:02:43 -08:00
Earle F. Philhower, III 08d37de94e Add PWMAudio for DAC-free audio playback (#1076) 
Use the PWM hardware to generate a signal suitable for filtering and
amplifying 16bps audio output.

Refactor the AudioBufferManager to allow sharing with I2S

Add example
 2022-12-30 13:24:06 -08:00