Commit Graph

28 Commits

Author SHA1 Message Date
microDev a52eb88031
run code formatting script 2021-03-15 19:27:36 +05:30
Jeff Epler 1df48176ce supervisor: factor supervisor_background_tasks from sundry ports 2020-07-15 11:49:44 -05:00
Jeff Epler 6160d11c5a supervisor: factor out, Handle USB via background callback 2020-07-15 11:49:44 -05:00
Jeff Epler 742aa740f6 samd: audio: Move to background callback
Testing performed: Played half of the Bartlebeats album :) :)
2020-07-15 09:26:47 -05:00
Scott Shawcroft 48b5f2a384
Initial work on SAMD 2020-03-13 11:16:41 -07:00
Jeff Epler 40a47d41df samd: background: Allow monitoring time taken in background task
If you define MONITOR_BACKGROUND_TASK, then a physical output pin
(Metro M4 Express's "SCL" pin by default) will be set HIGH while in
the background task and LOW at other times
2019-11-18 11:01:24 -06:00
Jeff Epler 7f744a2369 Supervisor: move most of systick to the supervisor
This code is shared by most parts, except where not all the #ifdefs
inside the tick function were present in all ports.  This mostly would
have broken gamepad tick support on non-samd ports.

The "ms32" and "ms64" variants of the tick functions are introduced
because there is no 64-bit atomic read.  Disabling interrupts avoids
a low probability bug where milliseconds could be off by ~49.5 days
once every ~49.5 days (2^32 ms).

Avoiding disabling interrupts when only the low 32 bits are needed is a minor
optimization.

Testing performed: on metro m4 express, USB still works and
time.monotonic_ns() still counts up
2019-11-18 11:01:23 -06:00
Scott Shawcroft c247e7df9c
Begin refresh rework. 2019-08-22 14:08:33 -07:00
Jeff Epler 33b949abfa samd: audio_dma, audio_background: Gate with CIRCUITPY_ defines
Some ports which actually don't have audioio or audiobusio were still
calling into audio_dma_background().  This wasn't an error until
the assignment to audio_dma_state in audio_dma_stop was added, though
it's not clear why.
2019-08-07 21:29:24 -05:00
Dan Halbert d633928a16 Don't let a background task call run_background_tasks() 2019-04-09 20:23:01 -04:00
Dan Halbert 2459eabd66 flush flash filesystem once a second 2019-03-20 12:21:36 -04:00
Dan Halbert 5154e0581e WIP: atmel-samd trinket build works 2019-02-15 00:28:20 -05:00
Scott Shawcroft 6404aaf411
Fix up nrf and using board.SPI in FourWire 2019-01-17 18:19:07 -08:00
Scott Shawcroft 84292ad890
External fourwire works and blinka splash after 2019-01-17 00:20:16 -08:00
Scott Shawcroft 801d9a5abc
Fix running the USB task on nRF.
It wasn't being run due to a rework done only on the atmel-samd port.
The rework itself isn't needed now that the heap check triggers safe
mode instead of throwing a Python exception. So, I've removed the
rework.
2018-12-07 16:11:21 -08:00
Scott Shawcroft 7ad2e6ace3
Add stack validity check and raise an error when it happens.
The backtrace cannot be given because it relies on the validity
of the qstr data structures on the heap which may have been
corrupted.

In fact, it still can crash hard when the bytecode itself is
overwritten. To fix, we'd need a way to skip gathering the
backtrace completely.

This also increases the default stack size on M4s so it can
accomodate the stack needed by ASF4s nvm API.
2018-12-04 23:26:04 -08:00
Scott Shawcroft 9d91111b1b
Move atmel-samd to tinyusb and support nRF flash.
This started while adding USB MIDI support (and descriptor support is
in this change.) When seeing that I'd have to implement the MIDI class
logic twice, once for atmel-samd and once for nrf, I decided to refactor
the USB stack so its shared across ports. This has led to a number of
changes that remove items from the ports folder and move them into
supervisor.

Furthermore, we had external SPI flash support for nrf pending so I
factored out the connection between the usb stack and the flash API as
well. This PR also includes the QSPI support for nRF.
2018-11-08 17:25:30 -08:00
Nick Moore bbf8334166 Fix build without network code 2018-10-25 13:14:27 +11:00
Nick Moore a15f3361aa add mechanism for timer ticks in NICs 2018-10-16 23:09:25 +11:00
Scott Shawcroft 6697544cdf
Introduce displayio to render graphics to displays.
It's designed to minimize RAM footprint by using Sprites to
represent objects on the screen. The object model also facilitates
partial screen updating which reduces the bandwidth needed to display.

This is all handled in C. Python simply manipulates the objects with
the ability to synchronize to frame timing.
2018-08-31 12:31:52 -07:00
Scott Shawcroft 86d2154d71
Change file mode back. 2018-08-09 09:14:14 -07:00
Scott Shawcroft 94c5ceab36
Initial SAMR board revision. 2018-08-09 05:36:46 -07:00
Scott Shawcroft 2fbab8067a Prevent freezing USB during high frequency PulseIn.
We now track the last time the background task ran and bail on the
PulseIn if it starves the background work. In practice, this
happens after the numbers from pulsein are no longer accurate.

This also adjusts interrupt priorities so most are the lowest level
except for the tick and USB interrupts.

Fixes #516 and #876
2018-06-08 12:56:32 -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
Dan Halbert 8e45dc041f Read serial input as a background task so we can check for the interrupt character. 2017-10-27 17:32:13 -04:00
Dan Halbert 7f88ba3b26 Revert "Allow main.py to be interrupted by ctrl-C" (#381)
* Revert "Read serial input as a background task so we can check for the interrupt character."

This reverts commit 046092e8a2.

* Revert "Check INTERNAL_LIBM make flag in a safer way."

This reverts commit 2b80add22f.
2017-10-27 17:32:13 -04:00
Dan Halbert 2487226dff Read serial input as a background task so we can check for the interrupt character. 2017-10-27 17:32:13 -04:00
Scott Shawcroft 73c15dcf8b Merge commit 'f869d6b2e339c04469c6c9ea3fb2fabd7bbb2d8c' into nrf2_merge
This is prep for merging in the NRF5 pull request.
2017-10-24 22:31:16 -07:00