Commit Graph

66 Commits

Author SHA1 Message Date
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
Dan Halbert 67406488d1 merge from upstream; re-alphabetize 2021-02-19 14:22:50 -05:00
Jeff Epler 7fd4567893 bitops: rename from _bit_transpose, describe the algorithm 2021-02-18 15:41:23 -06:00
Jeff Epler 9cf7d73c6c core: add bit_transpose function
.. this version can only handle exactly 8 bits "across".  The restriction
may be relaxed in a future revision.
2021-02-18 11:32:47 -06:00
Dan Halbert 93d788543c Merge remote-tracking branch 'adafruit/main' into secondary-cdc 2021-02-15 20:03:53 -05:00
Jeff Epler ff1942cff6 Enable protomatter on RP2040 builds
Also found a race condition between timer_disable and redraw, which
would happen if I debugger-paused inside common_hal_rgbmatrix_timer_disable
or put a delay or print inside it.  That's what pausing inside reconstruct
fixes.

So that the "right timer" can be chosen, `timer_allocate` now gets the `self`
pointer.  It's guaranteed at this point that the pin information is accurate,
so you can e.g., find a PWM unit related to the pins themselves.
This required touching each port to add the parameter even though it's
unused everywhere but raspberrypi.
2021-02-12 08:25:15 -06:00
microDev f2d7a5f1e1
Merge branch 'main' into nvm-rp 2021-02-12 18:36:54 +05:30
Dan Halbert f0564b4986 merge from upstream; complicated webusb merge 2021-02-11 18:50:02 -05:00
microDev 205837c47b
nvm implementation for rp2040 2021-02-11 12:48:36 +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
Scott Shawcroft 22dc7d5359
Update to the very latest SDK w/GP15 restore
Also adds unique id support

Fixes #4039 and hopefully #4107
2021-02-05 18:44:06 -08:00
Dan Halbert 0802b22ed6 usb descriptors all set; rework of enabling for USB devices 2021-02-04 19:23:40 -05:00
microDev ec03267035
rtc implementation for rp2040 2021-02-02 00:00:00 +05:30
microDev a54b57ea40
watchdog implementation for rp2040 2021-01-28 15:15:15 +05:30
Dan Halbert e8e8c593ac move longint choice to mpconfigport.mk 2021-01-21 22:50:15 -05:00
Scott Shawcroft 733094aead
Add initial RP2040 support
The RP2040 is new microcontroller from Raspberry Pi that features
two Cortex M0s and eight PIO state machines that are good for
crunching lots of data. It has 264k RAM and a built in UF2
bootloader too.

Datasheet: https://pico.raspberrypi.org/files/rp2040_datasheet.pdf
2021-01-20 19:16:56 -08:00