uint32_t getBigEndianExt(uint8_t *bytes){
uint8_t extb = *bytes;
uint8_t msb = INC_THIS(bytes);
uint8_t lsb = INC_THIS(bytes);
return GET_EXT(extb,msb,lsb);
}
uint8_t retf(uint8_t *opcode){
*pcToLoad = GET_EXT(mcu_pop(),mcu_pop(),mcu_pop());
return 1;
}
void ThreadSPIXCallback (void const *argument)
{
uint8_t u8Data = 0, u8ExtData = 0;
// End of TX part.
//==============================================================================
// Recovery NSS after sent data.
if(u8Nss1Low == 0)
{
//==============================================================================
// Send cmd first then data
if(IS_DATA_EXIST(SPI1_TXCmdBuffer))
{
if(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == SET) //If it's free to send data.
{
GET_EXT(SPI1_TXCmdBuffer, u8Data, u8ExtData); // Get data from ring buffer.
switch(u8ExtData)
{
case SPI1_CMD_PIN:
GPIO_ResetBits(GPIOA, GPIO_Pin_8);// PA8:D/C command = 0
break;
case SPI1_NRF24CSN_PIN:
GPIO_ResetBits(GPIOC, GPIO_Pin_4);// PC4: NRF24L01 CSN = 0
default:
GPIO_SetBits(GPIOA, GPIO_Pin_8);// PA8:D/C data = 1
break;
}
GPIO_ResetBits(GPIOA, GPIO_Pin_4); // PA4:Turn on NSS.--> Normal high, active low.
SPI_I2S_SendData(SPI1, u8Data); // Send data
u8Nss1Low = 1;
}
}
}
else
{
if(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_BSY) == RESET) //If it's free to send data.
{
GPIO_SetBits(GPIOA, GPIO_Pin_4);
u8Nss1Low = 0;
}
}
//==============================================================================
// Recovery NSS after sent data.
if(u8Nss2Low == 0)
{
//==============================================================================
// Send cmd first then data
if(IS_DATA_EXIST(SPI2_TXCmdBuffer))
{
if(SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == SET) //If it's free to send data.
{
GET_EXT(SPI2_TXCmdBuffer, u8Data, u8ExtData); // Get data from ring buffer.
switch(u8ExtData)
{
case SPI2_CMD_PIN:
GPIO_ResetBits(GPIOB, GPIO_Pin_10);// PA10:D/C command = 0
break;
default:
GPIO_SetBits(GPIOB, GPIO_Pin_10);// PA10:D/C data = 1
break;
}
GPIO_ResetBits(GPIOB, GPIO_Pin_12); // PA12:Turn on NSS.--> Normal high, active low.
SPI_I2S_SendData(SPI2, u8Data); // Send data
u8Nss2Low = 1;
}
}
}
else
{
if(SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == RESET) //If it's free to send data.
{
GPIO_SetBits(GPIOB, GPIO_Pin_12);
u8Nss2Low = 0;
}
}
//==============================================================================
// Get data
if(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == SET) //If there is data need to received.
{
u8Data = SPI_I2S_ReceiveData(SPI1);
PUT(SPI1_RXBuffer, u8Data);
}
if(SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_RXNE) == SET) //If there is data need to received.
{
u8Data = SPI_I2S_ReceiveData(SPI2);
PUT(SPI2_RXBuffer, u8Data);
}
}
