samd21: Add ability to use arbitrary pin configs with SPI
[fw/altos] / src / samd21 / ao_spi_samd21.c
2022-11-07 Keith Packardsamd21: Add ability to use arbitrary pin configs with SPI
2022-11-06 Keith Packardsamd21: Macro-ize the DMA register settings a bit
2022-11-06 Keith Packardsamd21: Use DMA for SPI send
2022-11-05 Keith Packardaltos: Get SAMD21 SPI driver working in non-DMA mode