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2020-04-29Add SPI master for ChibiOS/ARM. (#8779)Nick Brassel
2020-04-13Fix AVR SPI parameter configuration, remove timeouts due to sync protocol. ↵Nick Brassel
(#8775)
2020-04-08spi_master for AVR (#8299)Ryan
* Change _delay_ms/us() to wait_ms/us() * Switch to platform-agnostic GPIO macros * Add AVR spi_master and migrate Adafruit BLE code * Set verbose back to false * Add clock divisor, bit order and SPI mode configuration for init * Add start and stop functions * Move configuration of mode, endianness and speed to `spi_start()` * Some breaks here would be good * Default Adafruit BLE clock divisor to 4 (2MHz on the Feather 32U4) * Remove mode and divisor enums * Add some docs * No hr at EOF * Add links in sidebar