NRF52832 DFU problems

[TOM123]

Why each time to upgrade your program need to manually reset chips to run at a time, I use a software reset, but no effect?

[Hung Bui]

Hi Tom,

Please provide more information. Which SDK version you are using ?

How did you test? Have you tried with our stock bootloader example in the SDK and the example .zip file comes with the phone app ?

[TOM123]

Hi Hung Bui,

The SDK version is V11. I in official Bootlader program to modify some of the program, modify parts as follows: if(*p0==0x55667788) dfu_start=true; else dfu_start=false; //dfu_start |= ((nrf_gpio_pin_read(BOOTLOADER_BUTTON) == 0) ? true: false);

if(dfu_start )//||(!bootloader_app_is_valid(DFU_BANK_0_REGION_START)))
{
		  *p0=0;
    //nrf_gpio_pin_clear(UPDATE_IN_PROGRESS_LED);

    // Initiate an update of the firmware.
    err_code = bootloader_dfu_start(); 
    APP_ERROR_CHECK(err_code);

    //nrf_gpio_pin_set(UPDATE_IN_PROGRESS_LED);
}
else if(!dfu_start)
//if(bootloader_app_is_valid(DFU_BANK_0_REGION_START) && !bootloader_dfu_sd_in_progress())
{
    // Select a bank region to use as application region.
    // @note: Only applications running from DFU_BANK_0_REGION_START is supported.
    bootloader_app_start(DFU_BANK_0_REGION_START);
}

When I want to upgrade, I have already wrote in the specified flash 0 x55667788, can now normal upgrade, just after the upgrade need to manually reset the development board, is this why?