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Code Issues Wiki Activity

Call transmit buffer out and receive buffer in

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This commit is contained in:
jflyper 2017-07-11 09:44:13 +09:00
parent a885184796
commit a864b869ae
3 changed files with 11 additions and 11 deletions
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8
src/main/drivers/bus_spi.c
View file

@ -206,14 +206,14 @@ bool spiIsBusBusy(SPI_TypeDef *instance)
} }
bool spiTransfer(SPI_TypeDef *instance, uint8_t *out, const uint8_t *in, int len) bool spiTransfer(SPI_TypeDef *instance, uint8_t *in, const uint8_t *out, int len)
{ {
uint16_t spiTimeout = 1000; uint16_t spiTimeout = 1000;
uint8_t b; uint8_t b;
instance->DR; instance->DR;
while (len--) { while (len--) {
b = in ? *(in++) : 0xFF; b = out ? *(out++) : 0xFF;
while (SPI_I2S_GetFlagStatus(instance, SPI_I2S_FLAG_TXE) == RESET) { while (SPI_I2S_GetFlagStatus(instance, SPI_I2S_FLAG_TXE) == RESET) {
if ((spiTimeout--) == 0) if ((spiTimeout--) == 0)
return spiTimeoutUserCallback(instance); return spiTimeoutUserCallback(instance);
@ -233,8 +233,8 @@ bool spiTransfer(SPI_TypeDef *instance, uint8_t *out, const uint8_t *in, int len
#else #else
b = SPI_I2S_ReceiveData(instance); b = SPI_I2S_ReceiveData(instance);
#endif #endif
if (out) if (in)
*(out++) = b; *(in++) = b;
} }
return true; return true;

2
src/main/drivers/bus_spi.h
View file

@ -88,7 +88,7 @@ void spiSetDivisor(SPI_TypeDef *instance, uint16_t divisor);
uint8_t spiTransferByte(SPI_TypeDef *instance, uint8_t in); uint8_t spiTransferByte(SPI_TypeDef *instance, uint8_t in);
bool spiIsBusBusy(SPI_TypeDef *instance); bool spiIsBusBusy(SPI_TypeDef *instance);
bool spiTransfer(SPI_TypeDef *instance, uint8_t *out, const uint8_t *in, int len); bool spiTransfer(SPI_TypeDef *instance, uint8_t *in, const uint8_t *out, int len);
uint16_t spiGetErrorCounter(SPI_TypeDef *instance); uint16_t spiGetErrorCounter(SPI_TypeDef *instance);
void spiResetErrorCounter(SPI_TypeDef *instance); void spiResetErrorCounter(SPI_TypeDef *instance);

12
src/main/drivers/bus_spi_hal.c
View file

@ -261,22 +261,22 @@ bool spiIsBusBusy(SPI_TypeDef *instance)
return false; return false;
} }
bool spiTransfer(SPI_TypeDef *instance, uint8_t *out, const uint8_t *in, int len) bool spiTransfer(SPI_TypeDef *instance, uint8_t *in, const uint8_t *out, int len)
{ {
SPIDevice device = spiDeviceByInstance(instance); SPIDevice device = spiDeviceByInstance(instance);
HAL_StatusTypeDef status; HAL_StatusTypeDef status;
if (!out) // Tx only if (!in) // Tx only
{ {
status = HAL_SPI_Transmit(&spiDevice[device].hspi, (uint8_t *)in, len, SPI_DEFAULT_TIMEOUT); status = HAL_SPI_Transmit(&spiDevice[device].hspi, (uint8_t *)out, len, SPI_DEFAULT_TIMEOUT);
} }
else if (!in) // Rx only else if (!out) // Rx only
{ {
status = HAL_SPI_Receive(&spiDevice[device].hspi, out, len, SPI_DEFAULT_TIMEOUT); status = HAL_SPI_Receive(&spiDevice[device].hspi, in, len, SPI_DEFAULT_TIMEOUT);
} }
else // Tx and Rx else // Tx and Rx
{ {
status = HAL_SPI_TransmitReceive(&spiDevice[device].hspi, in, out, len, SPI_DEFAULT_TIMEOUT); status = HAL_SPI_TransmitReceive(&spiDevice[device].hspi, out, in, len, SPI_DEFAULT_TIMEOUT);
} }
if ( status != HAL_OK) if ( status != HAL_OK)