char UARTgetc(uint8_t UART)
{
// Wait for data if the buffer is empty
while (!rxQSize(UART)) flushReadFIFO(UART);
return (char)rxDequeue(UART);
}
// This throws away all data in the buffer
void UARTflushReceiveBuffer(uint8_t UART)
{
rxBufferHead[UART] = rxBufferTail[UART] = 0;
flushReadFIFO(UART);
rxBufferHead[UART] = rxBufferTail[UART] = 0;
overflow &= ~(bit8[UART]);
}
char UARTpeekBlocking(uint8_t UART)
{
// If there is data in the buffer return that
if (rxQSize(UART)) return rxBuff[UART][rxBufferTail[UART]];
// Wait for data if the buffer is empty
while (!rxQSize(UART)) flushReadFIFO(UART);
// Return what was read without popping it from the queue
return rxBuff[UART][rxBufferTail[UART]];
}
int UARTpeek(uint8_t UART)
{
// If there is data in the buffer return that
if (rxQSize(UART)) return rxBuff[UART][rxBufferTail[UART]];
// Try flushing the hardware FIFO and see if we can get data from there
flushReadFIFO(UART);
if (rxQSize(UART)) return rxBuff[UART][rxBufferTail[UART]];
// No data was found
return -255;
}
char UARTgetc(uint8_t UART)
{
if (!rxQSize(UART))
{
// Disable interrupt to avoid possible race condition
ROM_UARTIntDisable(UARTBASE[UART], UART_INT_RX);
// Wait for data if the buffer is empty
while (!rxQSize(UART)) flushReadFIFO(UART);
// Return to the previous state
ROM_UARTIntEnable(UARTBASE[UART], UART_INT_RX);
}
return (char)rxDequeue(UART);
}
char UARTpeekBlocking(uint8_t UART)
{
// If there is data in the buffer return that
if (rxQSize(UART)) return rxBuff[UART][rxBufferTail[UART]];
// Disable interrupt to avoid possible race condition
ROM_UARTIntDisable(UARTBASE[UART], UART_INT_RX);
// Wait for data if the buffer is empty
while (!rxQSize(UART)) flushReadFIFO(UART);
// Return to the previous state
ROM_UARTIntEnable(UARTBASE[UART], UART_INT_RX);
// Return what was read without popping it from the queue
return rxBuff[UART][rxBufferTail[UART]];
}
int UARTpeek(uint8_t UART)
{
// If there is data in the buffer return that
if (rxQSize(UART)) return rxBuff[UART][rxBufferTail[UART]];
// Disable interrupt to avoid possible race condition
ROM_UARTIntDisable(UARTBASE[UART], UART_INT_RX);
// Try flushing the hardware FIFO and see if we can get data from there
flushReadFIFO(UART);
if (rxQSize(UART)) return rxBuff[UART][rxBufferTail[UART]];
// Return to the previous state
ROM_UARTIntEnable(UARTBASE[UART], UART_INT_RX);
// No data was found
return -255;
}
void rxInt7(void) {flushReadFIFO(7);}
void rxInt6(void) {flushReadFIFO(6);}
void rxInt5(void) {flushReadFIFO(5);}
void rxInt4(void) {flushReadFIFO(4);}
void rxInt3(void) {flushReadFIFO(3);}
void rxInt2(void) {flushReadFIFO(2);}
void rxInt1(void) {flushReadFIFO(1);}
void rxInt0(void) {flushReadFIFO(0);}
int16_t UARTgetBufferLevel(uint8_t UART)
{
flushReadFIFO(UART);
return rxQSize(UART);
}
