non-secure bootloader is not taking secure bootloader DFU pkg

RE: non-secure bootloader is not taking secure bootloader DFU pkg

Hung Bui — Thu, 05 Nov 2020 14:41:15 GMT

It seems that the new bootloader kept crashing after DFU update. You can find in the end of the log it kept jumping to to main() and then reset again.

Have you checked what I asked earlier ? regarding the flash start address of the old and new bootloader ?
I suspect that it was not matched.
I would suggest to test DFU update from open bootloader to open bootloader first to check if it's the switching to secure bootloader causing the issue.
If it works, please test DFU update with a debug-able secure bootloader so that you can step to the code after the DFU update and check what cause the reset.

RE: non-secure bootloader is not taking secure bootloader DFU pkg

Lakshmi_K — Thu, 05 Nov 2020 08:33:01 GMT

- Which non-secure bootloader you used ? Was it BLE bootloader or USB , UART ? Did you add any modification ? BLE -BLE bootloader
-yes changed the advertisement name.

- Please try to test with no boot validation first

Yes, I tried, this also doesn't advertise. Please find the logs.

devzone.nordicsemi.com/.../Non_5F00_Secure_5F00_BT.txt

RE: non-secure bootloader is not taking secure bootloader DFU pkg

Hung Bui — Tue, 03 Nov 2020 13:52:45 GMT

Hi Lakshmi,

Could you please give more information about:

- Which non-secure bootloader you used ? Was it BLE bootloader or USB , UART ? Did you add any modification ?

- Could you get the log from both before and after DFU ?

- Please try to test with no boot validation first

- Please find the flash start address of the old bootloader and the new bootloader, the bootloader new bootloader can't be bigger than the old bootloader.