Commit Graph

17 Commits

Author SHA1 Message Date
Jeff Epler e066448e36 atmel-samd: add same51, feather_m4_can
This is compile-tested, and requires updates in the related submodules:

https://github.com/adafruit/samd-peripherals/pull/35
https://github.com/adafruit/asf4/pull/37

This should not be merged until those can also be merged.
2020-09-08 13:06:45 -05:00
Jeff Epler da733c01da atmel-samd: Add support for SAM E54 family MCUs
This introduces the new macro SAM_D5X_E5X.  This is mostly the same
as SAMD51 before, except in a few places where a special case for
SAME54 is required
2020-06-23 10:41:48 -05:00
Diego Elio Pettenò dd5d7c86d2 Fix up end of file and trailing whitespace.
This can be enforced by pre-commit, but correct it separately to make it easier to review.
2020-06-03 10:56:35 +01:00
Scott Shawcroft 48b5f2a384
Initial work on SAMD 2020-03-13 11:16:41 -07:00
Jeff Epler 1905d0746d samd: neopixel: Fix neopixels after #2297
This adapts the "inline assembler" code from the UF2 bootloader, which
in turn is said to be adapted from the arduino neopixel library.

This requires the cache remain ON when using M0, and be turned OFF on M4
(determined by trial and error)

Testing performed on a Metro M4:
 * measured timings using o'scope and found all values within
   datasheet tolerance.
 * Drove a string of 96 neopixels without visible glitches
 * on-board neopixel worked

Testing performed on a Circuit Playground Express (M0):
 * Color wheel code works on built-in neopixels
 * Color wheel code works on 96 neopixel strip

As a bonus, this may have freed up a bit of flash on M0 targets. (2988 ->
3068 bytes free on Trinket M0)

Closes: #2297
2019-12-07 19:19:45 -06:00
Scott Shawcroft a3a690dc01
Add pragma to ensure neopixel_write is always -Os 2018-11-13 10:56:00 -08:00
Dan Halbert bc510e714f merge 3.0.2 to master 2018-09-18 15:38:12 -04:00
Jerry Needell e8b94d0024 adjust SAMD51 neopixel_write timing 2018-08-24 07:01:50 -04:00
Scott Shawcroft 44de3d49a8
Speed up zero neopixel pulses.
SK6812 on 5v is pickier than WS2812 on 5v.

Hopefully fixes #1083.
2018-08-20 17:04:46 -07:00
Scott Shawcroft b0dd645e27
Retune neopixel timings on SAMD51. They were too slow.
Fixes #1083
2018-08-07 16:58:37 -07:00
Scott Shawcroft 168aa394db
Move pin struct to the peripherals library.
Its slimmed down by removing the qstr and bit packing TCC info.

The trinket m0 build actually grows by 20 bytes. The arduino zero
build shrinks by 188 bytes.
2018-08-02 13:59:05 -07:00
Dan Halbert 9b4477e1dc Implement UART for 3.0 + related fixes.
1. UART: ported to ASF4. Allow rx-only and tx-only. Add .baudrate r/w property.

2. Make NeoPixel timing deterministic by turning off caches during NeoPixel writes.
3. Incorporate asf4 updates:
  a. async USART driver
  b. bringing Atmel START configuration closer to what we use
  c. Clock initialization order now specified by CIRCUITPY_GCLK_INIT_1ST and _LAST.
4. supervisor/port.c: Move commented-out clock-test pin setting to correct location.
2018-02-21 17:18:49 -05:00
Scott Shawcroft a8ee0012d7 atmel-samd: Enable -Os for SAMD51 and update neopixel accordingly. 2017-11-06 16:30:11 -08:00
Scott Shawcroft a8dae22ae9 atmel-samd: Fix the neopixel delay method so it handles overflow better. 2017-11-01 11:56:54 -07:00
Scott Shawcroft 3177e10e9e atmel-samd: Add samd21 neopixel support.
Also, fix and enable the status neopixel.

Fixes #264
2017-10-31 22:38:09 -07:00
Tony DiCola d023879bea atmel-samd: Update and enable neopixel_write for ASF4, tested on SAMD21 only. 2017-10-31 16:06:36 -07:00
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