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* Fix error handling in SPI master. (#11122)Dimitris Papavasiliou2020-12-061-5/+11
| | | Co-authored-by: Dimitris Papavasiliou <dpapavas@gmail.com>
* adds support for the atmega328 (#9043)itsnoteasy2020-06-101-1/+1
| | | Co-authored-by: Ryan <fauxpark@gmail.com>
* Fix AVR SPI parameter configuration, remove timeouts due to sync protocol. ↵Nick Brassel2020-04-131-55/+68
| | | | (#8775)
* format code according to conventions [skip ci]QMK Bot2020-04-081-5/+5
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* spi_master for AVR (#8299)Ryan2020-04-081-0/+163
* 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