Hi,

I added the polling of UART_SpiUartGetRxBufferSize() API.

The size is always 0 ...

See below or the attached bundle

Regards,

Marlene

#include <project.h>

/*******************************************************************************

* Function Name: main

********************************************************************************

* Summary:

*  The main function performs the following actions:

*  1. Sets up UART component.

*  2. UART sends text header into the serial terminal.

*  3. UART waits for the characters to send them back to the serial terminal.

*

* Parameters:

*  None

*

* Return:

*  None

*

*******************************************************************************/

int main()

{

    uint32 ch_s = 0x00000000000000;

    uint32 ch_r = 0x00000000000000;

    /* Start SCB (UART mode) operation */

    UART_Start();

    for (;;)

    {

        /* Get received character or zero if nothing has been received yet */

        UART_SpiUartWriteTxData(++ch_s);

        while(ch_r!=ch_s){

            while(!UART_SpiUartGetRxBufferSize()) ;

            ch_r = UART_SpiUartReadRxData();}

    ch_r =0;

    }

}

/* [] END OF FILE */