RE: UART0 Interrupt stops after some time

PK — Fri, 22 Jul 2016 06:21:19 GMT

@Hung Bui. Thank you for your help. Yes i did the same at first but didnt work. Because interrupt didnt triggered so could not set the flag.

But I solved the problem by making a small change. I replaced the following code-

uart_buffer[uart_buf_head] =  (uint8_t)NRF_UART0->RXD;
uart_buf_head++;
NRF_UART0->EVENTS_RXDRDY = 0;

By this code-

 NRF_UART0->EVENTS_RXDRDY = 0;
    uart_buffer[uart_buf_head] =  (uint8_t)NRF_UART0->RXD;
    uart_buf_head++;

Now my interrupt is working perfectly and it does not stuck.

RE: UART0 Interrupt stops after some time

Hung Bui — Thu, 21 Jul 2016 12:09:43 GMT

@PK: Could you try to move the simple_uart_putstring((const uint8_t*)"OK Done\r\n"); out of the interrupt handler and instead set up a flag in the main loop and print it our when the flag is set ? I m suspecting maybe you spend too much time in the interrupt handler that can cause an issue.