Usage of UART receive callback function

[eugenephua]

Hi there, I am using KSDK1.2.0 with KDS 3.0.0 with FRDM-KL25Z board. I am trying to understand the purpose of the UART receive callback function when setting the parameters of UART in processor expert. In the callback function generated, there are 2 input parameters: uint32_t instance and void *uartState. How do i make use of these to obtain the received character in the UART?

[ivadorazinova · Accepted solution]

Hello Eugene,

you can get it for example by this way:

void uartCom1_RxCallback(uint32_t instance, void * uartState)
{
  /* Write your code here ... */
    uint8_t buffer[5]={0};
    UART_DRV_ReceiveData(instance,buffer,1);
}

where instance is UART number.

I hope this helps.

Best Regards,

Iva

[eugenephua]

Hi Eva,

Thanks, that helps!

Regards

Eugene