int spiReadWrite16(SPI_TypeDef *SPIx,uint8_t *rbuf, const uint16_t *tbuf, int cnt, uint16_t speed) {
int i;
SPIx->CR1 = (SPIx->CR1&~SPI_BaudRatePrescaler_256)|speed;
SPI_DataSizeConfig(SPIx, SPI_DataSize_16b);
for (i = 0; i < cnt; i++){
if (tbuf) {
// printf("data=0x%4x\n\r",*tbuf);
SPI_I2S_SendData16(SPIx,*tbuf++);
}
else {
SPI_I2S_SendData16(SPIx,0xffff);
}
while (SPI_I2S_GetFlagStatus(SPIx,SPI_I2S_FLAG_RXNE) == RESET);
if (rbuf) {
*rbuf++ = SPI_I2S_ReceiveData16(SPIx);
}
else {
SPI_I2S_ReceiveData16(SPIx);
}
}
SPI_DataSizeConfig(SPIx, SPI_DataSize_8b);
return i;
}
int spi_slave_read(spi_t *obj) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
if(obj->bits == SPI_DataSize_8b) // 8 bit mode
return (int)SPI_ReceiveData8(spi);
else
return (int)SPI_I2S_ReceiveData16(spi);
}
/**
* Функция чтения данных по SPI1
* @param ptrData - адрес буфера чтения
* @param dataLength - длинна посылки
* @return
*/
uint8_t hal_spi_c::read_write(uint8_t tx_data)
{
if (mode != SPI_MODE_READY)
{
mode = SPI_MODE_ERROR;
return 0;
}
#if 0
//#ifndef USE_STM32FXXX_SPI_DMA
SPI_SendData8(SPIx, tx_data);
while (!SPI_I2S_GetFlagStatus(SPIx, SPI_I2S_FLAG_TXE)); // wait until transmit complete
while (!SPI_I2S_GetFlagStatus(SPIx, SPI_I2S_FLAG_RXNE));// wait until receive complete
while ( SPI_I2S_GetFlagStatus(SPIx, SPI_I2S_FLAG_BSY)); // wait until SPI is not busy anymore
//return SPI_ReceiveData8(SPIx);
return SPI_I2S_ReceiveData16(SPIx);
/*#else
if (SPI_error != SPI_MODE_READY)
return SPI_MODE_BUSY;
Init_DMA(ptrDataRx, size, SPI_RX); // писать будем по полученному адресу
Init_DMA(&DataTx, size, SPI_TX); // для чтения необходимо выдать столько же рандомных байт
DMA_Cmd(SPI1_MASTER_Rx_DMA_Channel, ENABLE); // включаем прием
DMA_Cmd(SPI1_MASTER_Tx_DMA_Channel, ENABLE); // подаем синхроимпульсы
SPI_error = SPI_TRANSFER_ERROR_BUSY;
return SPI_MODE_START;
//#endif*/
#endif
}
/**
* @brief This function handles SPI1 global interrupt request
* @param None
* @retval : None
*/
void SPI1_IRQHandler(void)
{
uint32_t tmpreg = 0x00;
tmpreg = SPI1->SR;
#if defined (I2S_SLAVE_RECEIVER)
if ((tmpreg&0x01)==0x01)
{
I2S_Buffer_Rx[RxIdx++] = SPI_I2S_ReceiveData16(SPI1);
/* Disable the Interrupt when transfer is complete */
if(RxIdx == 32)
{
/* Disable the I2S1 RXNE Interrupt */
SPI_I2S_ITConfig(SPI1, SPI_I2S_IT_RXNE, DISABLE);
}
}
#elif defined (I2S_MASTER_TRANSMITTER)
if((tmpreg&0x02)==0x02)
{
SPI_I2S_SendData16(SPI1, I2S_Buffer_Tx[TxIdx++]);
if(TxIdx == 32)
{
/* Disable the I2S1 TXE Interrupt */
SPI_I2S_ITConfig(SPI1, SPI_I2S_IT_TXE, DISABLE);
}
}
#endif
}
bool spiTransfer(uint8_t *out, uint8_t *in, int len)
{
uint8_t b;
SPI2->DR;
while (len--) {
b = in ? *(in++) : 0xFF;
while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
#ifdef STM32F303xC
SPI_I2S_SendData16(SPI2, b);
#endif
#ifdef STM32F10X_MD
SPI_I2S_SendData(SPI2, b);
#endif
while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_RXNE) == RESET);
#ifdef STM32F303xC
b = SPI_I2S_ReceiveData16(SPI2);
#endif
#ifdef STM32F10X_MD
b = SPI_I2S_ReceiveData(SPI2);
#endif
if (out)
*(out++) = b;
}
return true;
}
void monitoring_pga(void) {
int i = 3;
char isResetPga = 0;
if(driver_stat.mut)
return;
driver_stat.mut = 1;
GPIO_WriteBit(GPIOD, GPIO_Pin_15, Bit_RESET);
for(; i >= 0; i--) {
while(SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
SPI_I2S_SendData16(SPI2, driver_stat.gain[i]);
while(SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == SET);
if((driver_stat.rec_message[i] = SPI_I2S_ReceiveData16(SPI2)) != driver_stat.gain[i]) {
isResetPga = 1;
}
}
while(SPI_GetTransmissionFIFOStatus(SPI2) != SPI_TransmissionFIFOStatus_Empty);
while(SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == SET);
GPIO_WriteBit(GPIOD, GPIO_Pin_15, Bit_SET);
if(isResetPga) {
GPIO_WriteBit(GPIOE, GPIO_Pin_12, Bit_SET);
driver_stat.is_overload = 1;
}
driver_stat.mut = 0;
return;
}
int spi_slave_read(spi_t *obj) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
if (obj->bits == SPI_DataSize_8b) {
return (int)SPI_ReceiveData8(spi);
} else { // 16-bit
return (int)SPI_I2S_ReceiveData16(spi);
}
}
static inline int ssp_read(spi_t *obj) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_readable(obj));
if(obj->bits == SPI_DataSize_8b) // 8 bit mode
return (int)SPI_ReceiveData8(spi);
else // 16 bit mode
return (int)SPI_I2S_ReceiveData16(spi);
}
void SPI1_IRQHandler(void)
{
uint16_t result;
if (SPI_I2S_GetFlagStatus(SPIx,SPI_I2S_FLAG_RXNE) == SET) // Word has been received
{
*CS = 1;
result = SPI_I2S_ReceiveData16(SPIx);
Spi_cb(result);
}
}
int16_t ReadEXTADC(void)
{
uint16_t data1;
uint16_t data2;
SPI_I2S_ReceiveData16(SPI3);
//SPI_DataSizeConfig(SPI3, SPI_DataSize_5b);
GPIO_ResetBits(GPIOA, GPIO_Pin_4);
SPI_I2S_SendData16(SPI3, 0x00);
while(!SPI_I2S_GetFlagStatus(SPI3, SPI_I2S_FLAG_RXNE));
data1 = SPI_I2S_ReceiveData16(SPI3);
//SPI_DataSizeConfig(SPI3, SPI_DataSize_16b);
SPI_I2S_SendData16(SPI3, 0x00);
while(!SPI_I2S_GetFlagStatus(SPI3, SPI_I2S_FLAG_RXNE));
data2 = SPI_I2S_ReceiveData16(SPI3);
GPIO_SetBits(GPIOA, GPIO_Pin_4);
return ((data2 >> 10) & 0x3F) + ((data1 << 6) & 0xFFC0);
}
int spiReadWrite16(SPI_TypeDef *SPIx, uint16_t *rbuf, const uint16_t *tbuf, int cnt, uint16_t speed) {
int i;
SPIx->CR1 = (SPIx->CR1 & ~SPI_BaudRatePrescaler_256) | speed;
SPI_DataSizeConfig(SPIx, SPI_DataSize_16b);
if ((cnt > 4) && !(cnt & 3)) {
i = xchng_datablock(SPIx, 1, tbuf, rbuf , cnt);
}
else {
for (i = 0; i < cnt; i++){
SPI_I2S_SendData16(SPIx, tbuf ? *tbuf++ : 0xffff);
while (SPI_I2S_GetFlagStatus(SPIx, SPI_I2S_FLAG_RXNE) == RESET);
if (rbuf) {
*rbuf++ = SPI_I2S_ReceiveData16(SPIx);
} else {
SPI_I2S_ReceiveData16(SPIx);
}
}
}
SPI_DataSizeConfig(SPIx, SPI_DataSize_8b);
return i;
}
void pga2505_write(void) {
int i =3;
GPIO_WriteBit(GPIOD, GPIO_Pin_15, Bit_RESET);
for(; i >= 0; i--) {
while(SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
SPI_I2S_SendData16(SPI2, driver_stat.gain[i]);
while(SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == SET);
SPI_I2S_ReceiveData16(SPI2);
}
while(SPI_GetTransmissionFIFOStatus(SPI2) != SPI_TransmissionFIFOStatus_Empty);
while(SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == SET);
GPIO_WriteBit(GPIOD, GPIO_Pin_15, Bit_SET);
return;
}
UI CMasterSPIHardware::transmit(UI data, ssel_t ssel)
{
while (SPI_I2S_GetFlagStatus(_spi, SPI_I2S_FLAG_RXNE) == SET)
;
if ((_spi->CR2 & 0xf00 ) > SPI_DataSize_8b)
{
SPI_I2S_SendData16(_spi, data);
while ((_spi->SR & 3UL << 11) != 0)//FIFO is not empty
;
while (SPI_I2S_GetFlagStatus(_spi, SPI_I2S_FLAG_RXNE) != SET)
;
return SPI_I2S_ReceiveData16(_spi);
}
else
{
SPI_SendData8(_spi, data);
while ((_spi->SR & 3UL << 11) != 0)//FIFO is not empty
;
while (SPI_I2S_GetFlagStatus(_spi, SPI_I2S_FLAG_RXNE) != SET)
;
return SPI_ReceiveData8(_spi);
}
}
uint16_t SPIClass::spiRX() {
if (dataSize == SPI_DataSize_16b)
return SPI_I2S_ReceiveData16(SPIx);
else
return SPI_ReceiveData8(SPIx);
}