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16 Commits

Author SHA1 Message Date
jerryneedell
1d9bcc5ddf
fix doc error in audioOut.c 
fixes #851
 2018-05-19 10:41:36 -04:00
Scott Shawcroft
fc7c25af6d Make resume idempotent (allowing you to call it twice without complaining.) 2018-05-08 13:00:05 -07:00
Scott Shawcroft
24116eff23 Tweak exception message. 2018-05-08 12:44:27 -07:00
Scott Shawcroft
50fc90bc5f Add pause/resume control to AudioOut and I2SOut 
Fixes #808
 2018-05-08 11:53:13 -07:00
Scott Shawcroft
22194d5977 Tweaks based on dhalbert's feedback. 2018-04-13 10:51:01 -07:00
Scott Shawcroft
28642ab10d Add audio output support! 
This evolves the API from 2.x (and breaks it). Playback devices are now
separate from the samples themselves. This allows for greater playback
flexibility. Two sample sources are audioio.RawSample and audioio.WaveFile.
They can both be mono or stereo. They can be output to audioio.AudioOut or
audiobusio.I2SOut.

Internally, the dma tracking has changed from a TC counting block transfers
to an interrupt generated by the block event sent to the EVSYS. This reduces
the overhead of each DMA transfer so multiple can occure without using up TCs.

Fixes #652. Fixes #522. Huge progress on #263
 2018-04-12 16:35:13 -07:00
Kattni
446a31302c
Merge pull request #600 from tannewt/clarify_property_comments 
Clarify style of attribute comments in the Design Guide.
 2018-02-14 22:03:37 -05:00
Scott Shawcroft
15db02664d Clarify style of attribute comments in the Design Guide. 
And update the core attributes to match the style.
 2018-02-07 13:08:42 -08:00
arturo182
ff041caa52 shared-bindings: Fix incorrect code comments 
Most likely caused by copy-paste.
 2018-02-06 22:03:17 +01:00
Dan Halbert
c478c10923 Do not allow a *io object to be used after deinit(). 
Fixes #278, #277, #276, #275.
 2017-10-03 12:07:17 -07:00
Dan Halbert
ef61b5ecb5 Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master. 
cpx build compiles and loads and works in repl; test suite not run yet
esp8266 not tested yet
 2017-08-25 22:17:07 -04:00
Scott Shawcroft
f878bc4efc atmel-samd: Fix AudioOut buffer playback by supporting bytes_per_sample. 
Thanks to @ntoll for finding this bug!
 2017-07-12 11:55:49 -07:00
Scott Shawcroft
714521a4c7 shared-bindings: Update docs to remove with statements from examples but add more detail to the design guide about their use. 2017-06-07 14:39:12 -07:00
Scott Shawcroft
2ecb9a3dbf docs: Fix header lines that are too short. 2017-06-07 11:58:04 -07:00
Scott Shawcroft
3f5028c666 atmel-samd: Support wav file playback. Tested up to 16bit 22.1khz. Must be mono file! 
SD card support may work but likely needs buffer tuning. Its untested.

Fixes #105
 2017-05-15 19:52:38 -07:00
Scott Shawcroft
58b9789d0c atmel-samd: Introduce audio sample playback via audioio.AudioOut. 2017-05-01 13:10:03 -07:00