Application update issue with personal bootloader and dfu

RE: Application update issue with personal bootloader and dfu

Sigurd — Mon, 24 Aug 2020 08:12:18 GMT

Hi,

Could you try to debug the application,and see if you enter the app_error_fault_handler() ? Compile and run the application in debug configuration:

Also enable RTT log backend, in sdk_config.h, make sure that you have these defines defined like this:

#define NRF_LOG_BACKEND_RTT_ENABLED 1
#define NRF_FPRINTF_FLAG_AUTOMATIC_CR_ON_LF_ENABLED 0
#define NRF_LOG_ENABLED 1

Vincent RED — Thu, 20 Aug 2020 16:17:54 GMT

Hi,

Thanks for your answer.

I tried both address, same result ...

What i have seen with segger embedded studio is :

- after SD jump to 0x26374

- application works as expected. I compare it with the original blinky_example step by step.

- the app crash during the last iteration in the function nrf_delay()

- the board is back to the bootloader

Here is the statement just before reboot :

Sigurd — Thu, 20 Aug 2020 14:56:30 GMT

Hi,

In "start_app", what address are you jumping to ? 0x26000 ?

Try to jump to 0x1000 instead (end of MBR).