unsigned char AIR_UART_StrnPrint(unsigned char* pBuffer, unsigned int count)
{
unsigned char i;
char temp;
for(i = 0; i < count; i++)
{
if((pBuffer[i] == '\0') || CircularBuffer_Write(&uartTXCircularBuffer, pBuffer[i]))
{
if(!CircularBuffer_Read(&uartTXCircularBuffer, &temp))
{
puart_write(temp);
P_UART_INT_ENABLE |= P_UART_ISR_TX_FAE_MASK;
}
return i;
}
}
if(!CircularBuffer_Read(&uartTXCircularBuffer, &temp))
{
puart_write(temp);
P_UART_INT_ENABLE |= P_UART_ISR_TX_FAE_MASK;
}
return i;
}
unsigned char AIR_UART_Print(unsigned char *pBuffer)
{
unsigned char i;
char temp;
for(i = 0; i < AIR_UART_RX_CIRCULAR_BUFFER_SIZE; i++)
{
if((pBuffer[i] == '\0') || CircularBuffer_Write(&uartTXCircularBuffer, pBuffer[i]))
{
if(!CircularBuffer_Read(&uartTXCircularBuffer, &temp))
{
puart_write(temp);
P_UART_INT_ENABLE |= P_UART_ISR_TX_FAE_MASK;
}
return i;
}
}
if(!CircularBuffer_Read(&uartTXCircularBuffer, &temp))
{
puart_write(temp);
P_UART_INT_ENABLE |= P_UART_ISR_TX_FAE_MASK;
}
return i;
}
void USART1_IRQHandler(void)
{
uint32_t data;
static BaseType_t xHigherPriorityTaskWoken;
xHigherPriorityTaskWoken = pdFALSE;
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
USART_ClearITPendingBit(USART1, USART_IT_RXNE);
data = USART_ReceiveData(USART1);
CircularBuffer_Write(ptxcbuf, &data, 1);
USART_ITConfig(USART1, USART_IT_IDLE, ENABLE);
}
else if(USART_GetITStatus(USART1, USART_IT_IDLE) != RESET)
{
USART_ClearITPendingBit(USART1, USART_IT_IDLE);
USART_ITConfig(USART1, USART_IT_IDLE, DISABLE);
data = (CircularBuffer_Length(ptxcbuf) -
(lastHead- CircularBuffer_HeadPosition(ptxcbuf)))%CircularBuffer_Length(ptxcbuf);
lastHead = CircularBuffer_HeadPosition(ptxcbuf);
xQueueSendFromISR(frameLengthQueue, &data, &xHigherPriorityTaskWoken);
}
portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
}
static void puart_rx_callback(void* unused)
{
// There can be at most 16 bytes in the HW FIFO.
char readbyte;
// empty the FIFO
while(puart_rxFifoNotEmpty() && puart_read(&readbyte))
{
//We recieved a byte place it into the circle buffer.
CircularBuffer_Write(&uartRXCircularBuffer, readbyte);
if(uartRXCallback != NULL)
{
uartRXCallback(readbyte);
}
}
P_UART_INT_CLEAR(P_UART_ISR_RX_AFF_MASK);
// enable UART interrupt in the Main Interrupt Controller and RX Almost Full in the UART Interrupt Controller
P_UART_INT_ENABLE |= P_UART_ISR_RX_AFF_MASK;
}