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Align ChibiOS spi_master behaviour with AVR (#11404) 

* Align ChibiOS spi_master behaviour with AVR

* Rollback `spi_transmit()` and `spi_receive()` to preserve DMA
master
Ryan 2021-01-03 14:53:53 +11:00 committed by GitHub
parent b3de903a3d
commit f3ac792c09
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1 changed files with 8 additions and 2 deletions
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10
drivers/chibios/spi_master.c
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@ -115,11 +115,17 @@ bool spi_start(pin_t slavePin, bool lsbFirst, uint8_t mode, uint16_t divisor) {
return true;
}
spi_status_t spi_write(uint8_t data) { return spi_transmit(&data, 1); }
spi_status_t spi_write(uint8_t data) {
uint8_t rxData;
spiExchange(&SPI_DRIVER, 1, &data, &rxData);
return rxData;
}
spi_status_t spi_read(void) {
uint8_t data = 0;
spi_receive(&data, 1);
spiReceive(&SPI_DRIVER, 1, &data);
return data;
}