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When transfering 8 bit SPI, only set / get the first byte

This commit is contained in:
Daniel Fekete 2017-04-19 21:21:53 +02:00
parent 61ececd5d1
commit 1ad325396c
1 changed files with 3 additions and 2 deletions
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5
STM32/libraries/SPI/src/SPI.h
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@ -100,11 +100,12 @@ class SPIClass {
inline uint8_t SPIClass::transfer(uint8_t data) {
spiHandle.Instance->DR = data;
*(volatile uint8_t*)&spiHandle.Instance->DR = data;
while(__HAL_SPI_GET_FLAG(&spiHandle, SPI_FLAG_RXNE) == RESET);
while(__HAL_SPI_GET_FLAG(&spiHandle, SPI_FLAG_BSY) == SET);
return spiHandle.Instance->DR;
return *(volatile uint8_t*)&spiHandle.Instance->DR;
/*
if (HAL_SPI_TransmitReceive(&spiHandle, &data, &data, 1, 1000) != HAL_OK) {