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Thread: Trigger UART Rx if one byte has been received

  1. #1
    New Member New Member Kurt will become famous soon enough
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    Trigger UART Rx if one byte has been received

    Hello,

    I work with Dave 4 and try to detect that the UART receive one byte. I switched the RX-FIFO off. I got the byte read only when a second byte has been received.
    It's always a delay of one received byte.

    My code is:

    if (XMC_USIC_CH_GetReceiveBufferStatus(XMC_UART1_CH1) > 0)
    {
    UART_Receive(&UART_0, (uint8_t *) & read_data, 1);

    How to code that if one byte arrived that I could read it immediatly? Maybe based on an interrupt? I need to avoid to poll again and again.

    Kind regards
    Kurt

  2. #2
    New Member New Member Kurt will become famous soon enough
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    Solved.

    I had to code

    if (XMC_USIC_CH_GetReceiveBufferStatus(XMC_UART1_CH1) > 0)
    {
    read_data=(uint8_t)XMC_UART_CH_GetReceivedData(XMC _UART1_CH1);

    It's working now.

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