we are using k60fx512. we are using the following intialization steps to enable the uart2 interuppt

[anjum]

the intialisation steps are:

uart_init (UART2_BASE_PTR,120000, 921600);

UART_C2_REG(UART2_BASE_PTR) |= UART_C2_RIE_MASK;

NVICICPR1 |= 1 << (49%32);

  NVICISER1 |= 1 << (49%32);

then isr for uart2:

void UART2_handler(void)

{

    unsigned char data1;

  if(!(UART_S1_REG(UART2_BASE_PTR) & UART_S1_RDRF_MASK))

    data1=UART_D_REG(UART2_BASE_PTR);

}

while receiving the data, it is entering inside the ISR. But it is never coming out of the isr.??

[Hui_Ma]

Hi

I would recommend to refer thread UART Driver with Interrupt  about UART interrupt application.

For you mentioned, it could not coming out from UART2 ISR routine, it need to check the UART2_S1 register if there with some other flags also be set.

I think you could debug the code and check the UART2_S1 register value.

Wish it helps.

Have a great day,
Ma Hui

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