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Add SPI TxRx function

pull/11/head
Alex Voinea 2021-05-17 09:11:11 +03:00
parent dc9528b4ea
commit db98d0cf7b
1 changed files with 7 additions and 0 deletions
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7
src/hal/spi.h
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@ -33,6 +33,13 @@ namespace spi {
hspi->SPCRx = (0 << SPIE) | (1 << SPE) | (0 << DORD) | (1 << MSTR) | (0 << CPOL) | (0 << CPHA) | (spr << SPR0);
hspi->SPSRx = (spi2x << SPI2X);
}
__attribute__((always_inline)) inline uint8_t TxRx(SPI_TypeDef *const hspi, uint8_t val) {
hspi->SPDRx = val;
while (!(hspi->SPSRx & (1 << SPIF)))
;
return hspi->SPDRx;
}
}
}