Debugging Problem with nRF52833 DK

[simon1516]

Hi,

I´m working with "TWI Sensor" example of SDK 16 and I modified the Main function of main.c as follows (just added NRF_LOG_INFO("\r\ntest"));:

 * @brief Function for main application entry.
 */
int main(void)
{
    APP_ERROR_CHECK(NRF_LOG_INIT(NULL));
    NRF_LOG_DEFAULT_BACKENDS_INIT();

    NRF_LOG_INFO("\r\nTWI sensor example started.");
    NRF_LOG_FLUSH();
  
    twi_init();

    LM75B_set_mode();

    while (true)
    {
        nrf_delay_ms(500);
NRF_LOG_INFO("\r\ntest");
        do
        {
            __WFE();
        }while (m_xfer_done == false);
        
        read_sensor_data();
        NRF_LOG_FLUSH();
    }
}

/** @} */

I just added this Log Info for making sure the code is running well. But in my UART terminal I can´t see the text "test" every 500ms. So I would like to start debugging to get more information.

I tried to work with your insctructions of debugging (https://www.youtube.com/watch?v=uP8RYgYGRvI)

So I go to "app_error.c" and set a breakpoint to the line as shown in screenshot. Why is there a question mark on the breakpoint?

If I press "debug" again, the program is not halted anywhere. I can nothing see on debug terminal. I got the message "TWI sensor example started." two times, I don´t why two times. But this shows, that main.c is running.

What could I try to do?

[haakonsh]

Are you sure you're in the 'debug' build configuration and not the 'release' configuration?