Issue with OTA DFU on NRF 52832

[pastagas]

Hello,

I have tested secure_bootloader_ble_s132_pca10040 project with Segger Embedded Studio. it works fine and I can update my application.zip via nrfConnect android application. Once it is finished, my application start without problem.

After that, I made an hex image of bootloader. I put it with softdevice.hex in the windows programmer of nfrConnect and I flashed the nrf52832. The bootloader runs and 

I can update my application via OTA. But once updating is finished, the bootloader don't launch my application.it keeps running and the only thing I can do is updating again....

Best regards

[bjorn-spockeli]

Hi pastagas, 

which SDK version are you using? 

Can you debug the bootloader after the application update and check teh return value of nrf_bootloader_fw_activate() called in nrf_bootloader_init() in nrf_bootloader.c as well as the return value of dfu_enter_check() in the same function and file?

If there is a valid application present, then dfu_enter_check should return false. 

Best regards

Bjørn

[pastagas]

Hi Bjorn,

I am using SDK 15.3.0.

nrf_bootloader_fw_activate() returns ACTIVATION_SUCCESS.

dfu_enter_check()  returns false.

Note that in debug mode, the application is well launched by the bootloader once it has been updated.

The problem occurs when I use the bootloader programmed with the programmer of nRF Connect (windows 10). 

In this case, I can't debug the bootloader and give you the values.

Regards

[bjorn-spockeli]

Which IDE are you using? I you are using SES, then you should be able to attach to the running code with a debugger the bootloader project to see whats going on. 

Do you see the same behavior if you flash the debug bootloader, i.e. nRF5_SDK_15.3.0_59ac345\examples\dfu\secure_bootloader\pca10040_ble_debug. using nRF Programmer?

Best regards

Bjørn