DFU

[Olivier]

I have a DFU issue; SDK nRF5_SDK_13.0.0_04a0bfd

The system reboots on the DFUTAG after having completed the application upload.

I have the following errors :
:DEBUG:Error code - sd_softdevice_vector_table_base_set: 0x00000000
:DEBUG:Before SOFTDEVICE_HANDLER_APPSH_INIT
:DEBUG:After SOFTDEVICE_HANDLER_APPSH_INIT
:INFO:Error code - sd_ble_cfg_set: 0x00000000

[Olivier]

Hi Bjorn,

I added the following code in nrf_dfu.c 

__WEAK bool nrf_dfu_enter_check(void)
{
    if (nrf_gpio_pin_read(BOOTLOADER_BUTTON) == 0)
    {
    	NRF_LOG_DEBUG("******* BOOTLOADER_BUTTON == 0 ************** \n");
    	return true;
    }

    if(NRF_POWER->GPREGRET == BOOTLOADER_DFU_START)
    {
    	NRF_LOG_DEBUG("******* BOOTLOADER_DFU_START == %d ************** \n", BOOTLOADER_DFU_START);
    	return true;
    }

    if (s_dfu_settings.enter_buttonless_dfu == 1)
    {
        s_dfu_settings.enter_buttonless_dfu = 0;
        APP_ERROR_CHECK(nrf_dfu_settings_write(NULL));
    	NRF_LOG_DEBUG("******* enter_buttonless_dfu == 1 ************** \n");
        return true;
    }
    return false;
}

Please find bellow the result 

:DEBUG:Erasing: 0x0007f000, num: 1
:DEBUG:Writing 0x00000057 words
:DEBUG:Writing settings...
:DEBUG:******* BOOTLOADER_BUTTON == 0 ************** 
:DEBUG:Application sent bootloader request
:DEBUG:In nrf_dfu_transports_init
:DEBUG:num transports: 1
:DEBUG:vector table: 0x00075000
:DEBUG:vector table: 0x00075000
:DEBUG:Error code - sd_softdevice_vector_table_base_set: 0x00000000
:DEBUG:Before SOFTDEVICE_HANDLER_APPSH_INIT
:DEBUG:After SOFTDEVICE_HANDLER_APPSH_INIT
:INFO:Error code - sd_ble_cfg_set: 0x00000000
:DEBUG:Enabling softdevice.
SDH:DEBUG:RAM start at 0x20002060.
:DEBUG:Softdevice enabled
:DEBUG:After nrf_dfu_transports_init
:DEBUG:------- nrf_dfu_flash_init-------
:DEBUG:Waiting for events

Do you confirm that the BOOTLOADER _BUTTON pin number is P019 (BUTTON_D) ?

Does it means that P019 is activated ?

Thanks,

Olivier 

[bjorn-spockeli]

HI Olivier, 

I apologize for the late reply, I have been out of office on a business trip.

Yes, if you enter the if (nrf_gpio_pin_read(BOOTLOADER_BUTTON) == 0), then it means that the Bootloader Button Pin is pulled low. In the pca10040.h file, the BOOTLOADER_BUTTON is defined as follows. 

BOOTLOADER_BUTTON   == BSP_BUTTON_3 == BUTTON_4 == P0.16 

Do you have a button on you product that you want to use to put the device in bootloader mode, if not, then you can comment out the following snippet in  nrf_dfu_enter_check

 if (nrf_gpio_pin_read(BOOTLOADER_BUTTON) == 0)
{
	NRF_LOG_DEBUG("******* BOOTLOADER_BUTTON == 0 ************** \n");
	return true;
}

Bjørn