[CLOSED][nrf52832][S132 4.0.2] application can not start normally in merged hex (SD+APP+BL)

RE: [CLOSED][nrf52832][S132 4.0.2] application can not start normally in merged hex (SD+APP+BL)

ffreturn — Thu, 01 Jun 2017 03:54:38 GMT

Thanks for your help.

Problem relates to sd_mbr_command issue. It can not be called twice. Now I remove previous sd_mbr_command and application can start now.

RE: [CLOSED][nrf52832][S132 4.0.2] application can not start normally in merged hex (SD+APP+BL)

Hung Bui — Wed, 31 May 2017 14:51:54 GMT

Usually I see the issue with nrf_dfu_mbr_init_sd() when the softdevice is already initialized and then we call nrf_dfu_mbr_init_sd() again. Happened when you come to application and then switch to bootloader (buttonless DFU). I strongly suggest to try to test with a minimal program as the application, just blink the LED.

RE: [CLOSED][nrf52832][S132 4.0.2] application can not start normally in merged hex (SD+APP+BL)

ffreturn — Wed, 31 May 2017 11:04:05 GMT

@Jørgen Kvalvaag you are correct. nrf_dfu_mbr_init_sd causes reset of bootloader. nrf_dfu_mbr_init_sd is defined in lib file nrf_dfu_mbr.c:

uint32_t nrf_dfu_mbr_init_sd(void)
{
    uint32_t ret_val;

    sd_mbr_command_t command =
    {
        .command = SD_MBR_COMMAND_INIT_SD
    };

    ret_val = sd_mbr_command(&command);

    return ret_val;
}

Is there any problem with it?

RE: [CLOSED][nrf52832][S132 4.0.2] application can not start normally in merged hex (SD+APP+BL)

Hung Bui — Wed, 31 May 2017 08:05:57 GMT

@ffreturn:What do you mean by " blinky example with merged hex " ? Just use normal blinky example built for S132 . How did you make the merged hex ?

RE: [CLOSED][nrf52832][S132 4.0.2] application can not start normally in merged hex (SD+APP+BL)

Jørgen Kvalvaag — Wed, 31 May 2017 05:47:37 GMT

Your code reaches logging "Running nrf_bootloader_app_start with address: 0x1F000", but you don't reach "Disabling interrupts\r\n", so something happened in nrf_dfu_mbr_init_sd().

RE: [CLOSED][nrf52832][S132 4.0.2] application can not start normally in merged hex (SD+APP+BL)

ffreturn — Tue, 30 May 2017 23:42:01 GMT

@Hung Bui, How to find blinky example with merged hex that contains bootloader and application. Thanks.

RE: [CLOSED][nrf52832][S132 4.0.2] application can not start normally in merged hex (SD+APP+BL)

ffreturn — Tue, 30 May 2017 23:41:12 GMT

@Jørgen Kvalvaag I add more information in my question.

RE: [CLOSED][nrf52832][S132 4.0.2] application can not start normally in merged hex (SD+APP+BL)

Hung Bui — Tue, 30 May 2017 10:30:45 GMT

@ffreturn: Please provide your bootloader setting .hex file.

Also please try to test with very simple application, such as the blinky example . Just to check if the bootloader can branch to application properly. Then you can test with other example such as the ble_app_hrs.

RE: [CLOSED][nrf52832][S132 4.0.2] application can not start normally in merged hex (SD+APP+BL)

Jørgen Kvalvaag — Mon, 29 May 2017 07:47:08 GMT

I notice that your bootloader settings might not be correct. It should include both CRC and size of your app, looks like the CRC is missing? Did you create the bootloader-settings using the nrfutil tool?