Commit Graph

14 Commits

Author SHA1 Message Date
Scott Shawcroft 898a7d92e3 atmel-samd: Fix M4 RTC and ItsyBitsy M4 definition 2018-04-19 14:42:03 -04:00
sommersoft a0eb51cc97 updated asf4_config: reverted oscillators to use internal vs external for RTC 2018-04-18 03:35:58 +00:00
Noralf Trønnes 8e2080411f atmel-samd: Add rtc module support
Support the rtc module by using hal_calendar.
2018-04-16 13:15:08 +02:00
Dan Halbert d005b12326 WIP: seems to be done 2018-04-02 19:08:18 -04:00
Dan Halbert 4895a9d1d8 Use safe clock freqs for AnalogOut; use DAC REFRESH on SAMD51. 2018-02-27 15:44:27 -05:00
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 82bc11585e ports/atmel-samd: Re-enable analogio
This introduces SAMD51 support and re-enables SAMD21 support.

Fixes #263
2018-02-08 14:48:08 -08:00
Dan Halbert 6f662e9bbc samd51 peripheral clocks were defined as 12MHz, but were really 120MHz 2017-11-20 21:11:30 -08:00
Dan Halbert 312444bbd2 non-DMA SPI working; adding this now for testing; will continue with DMA
Also, fixed pin mappings for rev B Metro M4:
swap PA12 and PA13 on SPI 2x3 header
swap A3 and A5

Comment out all frozen modules in CPX again to make room while waiting
for SPI flash.
2017-11-16 19:09:35 -05:00
Scott Shawcroft ef9a7f262a atmel-samd: Turn off nvmctl cache and rework active_read. 2017-11-08 16:01:38 -08:00
Dan Halbert 7292984204 Implement busio.I2c.
* Added asf4_conf/samd*/hpl_sercom_config.h
* Adjusted clocks in peripheral_clk_config.h.
* Put some frozen libs back in CPX for testing.
* Implement common-hal I2C
* Add samd*_peripherals.h in parallel with samd*_pins.h for common
  functions and data.
* Store SERCOM index in pins table for convenience.
* Canonicalize some #include guard names in various .h files.

simpler reset of SERCOMs; remove unused routine
2017-11-07 09:59:54 -08:00
Scott Shawcroft 3cfb06042e atmel-samd: update to October 2017 ASF4. 2017-11-02 12:19:50 -07:00
Scott Shawcroft 4aeef100f6 atmel-samd: More USB polish
* Introduce a python script to generate the USB descriptor instead of
  a bunch of C macros. In the future, we can use this dynamically in
  CircuitPython.
* Add support for detecting read-only mass storage mounts.

Fixes #377
2017-10-30 18:29:20 -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