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
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board.c	atmel-samd: Add TX/RX led support for Metro M4.	2017-10-31 22:39:16 -07:00
mpconfigboard.h	Add a new board for Metro M4 Express Rev B. This is the board	2018-02-20 12:34:07 -08:00
mpconfigboard.mk	Begin rework to add qspi support.	2018-02-19 14:02:04 -08:00
pins.c	Implement UART for 3.0 + related fixes.	2018-02-21 17:18:49 -05:00