PSOC4 SPI Master RX interrupt problem

[chwa_1570756]

Hello,

I use SPI as master and enable the interrupt of RX FIFO not empty, the code and setting are listed below.

In slave end, I did not write any data to slave FIFO buffer and even I physically terminate SPI connection.

My problem is why once excuting the line of SPIM_SpiUartPutArray(TxBuff,5), the system always enter into

Master_ISR.

Chris

void Master_ISR()

{

    SPIM_SpiUartClearRxBuffer();  

    SPIM_ClearRxInterruptSource(SPIM_INTR_RX_NOT_EMPTY);  

}

int main(void)

{

    uint8 TxBuff[5] = {1,2,3,4,5};

    SPIM_Start();

    SPIM_SetCustomInterruptHandler(*Master_ISR);

    CyGlobalIntEnable;

    for(;;)

    {

        SPIM_SpiUartPutArray(TxBuff,5);

    }

}