HOW TO DEBUG NRF52832 USING MINICOM ON UBUNTU(/dev/ttyACM0)

RE: HOW TO DEBUG NRF52832 USING MINICOM ON UBUNTU(/dev/ttyACM0)

JAGADEESH DADI — Fri, 23 Mar 2018 07:34:13 GMT

Finally myself i did R&D and solved the problem.its all about changing the pin numbers in main.c and some configurations related to UART in sdk_config.h.Below was the change in my main.c file

static void uart_init(void)
{
    uint32_t err_code;

    const app_uart_comm_params_t comm_params =
      {
        .rx_pin_no    = 30,
        .tx_pin_no    = 29,
        .rts_pin_no   = 2,
        .cts_pin_no   = 28,
        .flow_control = APP_UART_FLOW_CONTROL_DISABLED,
        .use_parity   = false,
        .baud_rate    = UART_BAUDRATE_BAUDRATE_Baud115200
      };

    APP_UART_FIFO_INIT(&comm_params,
                        UART_RX_BUF_SIZE,
                        UART_TX_BUF_SIZE,
                        uart_event_handle,
                        APP_IRQ_PRIORITY_LOWEST,
                        err_code);

    APP_ERROR_CHECK(err_code);
}

And just use printf(); in order to print string

printf("\r\nhello world\r\n");

And also make sure that your sdk_config.h file must be like attached file

devzone.nordicsemi.com/.../5187.sdk_5F00_config.h

RE: HOW TO DEBUG NRF52832 USING MINICOM ON UBUNTU(/dev/ttyACM0)

Håkon Alseth — Wed, 21 Mar 2018 12:52:09 GMT

When you mention that you use daplink, do you mean using the nRF52-DK with this firmware instead of the default segger fw?

nRF5x-OB-mbed-IF

Could you try to use segger's firmware instead and see if that works?

nRF5x-OB-JLink-IF

RE: HOW TO DEBUG NRF52832 USING MINICOM ON UBUNTU(/dev/ttyACM0)

JAGADEESH DADI — Wed, 21 Mar 2018 09:43:37 GMT

No luck.Its like hell.waste of time

RE: HOW TO DEBUG NRF52832 USING MINICOM ON UBUNTU(/dev/ttyACM0)

Håkon Alseth — Wed, 21 Mar 2018 07:42:46 GMT

The project is setup with the UART pins corresponding to the nRF52-DK. If you are testing with the nRF52-DK, then you can compile and flash as-is.

RE: HOW TO DEBUG NRF52832 USING MINICOM ON UBUNTU(/dev/ttyACM0)

JAGADEESH DADI — Wed, 21 Mar 2018 05:23:22 GMT

Is it fine if i just compile and flash or i need to modify any configurations related to UART in "main.c" or "Sdk_config.h" files before compilation?

RE: HOW TO DEBUG NRF52832 USING MINICOM ON UBUNTU(/dev/ttyACM0)

Håkon Alseth — Tue, 20 Mar 2018 10:43:44 GMT

If you are using the nRF52-DK, then you can load the SDK example peripheral/uart, and it shall output "Start:" at the beginning.

Try the reset the board and see if the string appears again.

I haven't used minicom before, but make sure that you set the correct baud, 115k2, then open the ttyACMx.

Putty or screen ("screen /dev/ttyACMx 115200") can also be used to open the serial port.

Best regards,

Håkon

RE: HOW TO DEBUG NRF52832 USING MINICOM ON UBUNTU(/dev/ttyACM0)

JAGADEESH DADI — Tue, 20 Mar 2018 05:18:52 GMT

I went with your suggestions,but no luck.could you please post any working UART HEX file and a softdevice

RE: HOW TO DEBUG NRF52832 USING MINICOM ON UBUNTU(/dev/ttyACM0)

Håkon Alseth — Mon, 19 Mar 2018 16:07:11 GMT

Hi,

Your user must be in the dialout group in order to access the ttyACM* device:

sudo usermod -a -G dialout <username>

After this, you must reboot.

If it still does not work, please check the uart pin out of the project that you've flashed onto the device matches the required pin-out for your DAPLink.

Cheers,

Håkon