DFU fail while process through buttonless project

RE: DFU fail while process through buttonless project

Hung Bui — Tue, 07 Aug 2018 08:05:22 GMT

Hi MaxLiao,

Could you check if it actually enter bootloader ? Do you have any LED to indicate that it enters the bootloader ?

Do you modify the address in your application ?

Could you test with the buttonless example we provided in our SDK ?

Regarding monitoring the RTT log to log both application and bootloader, you may need to have a look here or here.

RE: DFU fail while process through buttonless project

Max Liao — Mon, 06 Aug 2018 15:48:20 GMT

Dear Hung Bui

I haven't trace it yet, I'll arrange a time to do it when my top priority has done.

I didn't modify the bootloader, and the buttonless I only implement with my application, the part of DFU I didn't modify with.

And I using without bond DFU that set as default in buttonless example.
Here's the log that catch from the application side when the DFU trig.

 0> <info> app: Received indication state 1
 0> <info> app: Device is preparing to enter bootloader mode.
 0> <info> app: Device will enter bootloader mode.
 0> <info> app: Power management wants to reset to DFU mode.
 0> <INFO> [app_shutdown_handler]: Device ready to enter bootloader..
 0> <info> app: Power management allowed to reset to DFU mode.

And then I got nothing more, although I turn on the log in bootloader, I also don't get any log from there. After a while the device seems timeout and reboot, the application still the old one.

RE: DFU fail while process through buttonless project

Hung Bui — Mon, 06 Aug 2018 14:23:02 GMT

Hi Max,

A sniffer trace would greatly help identifying the issue.

Do you have any modification to the code of the bootloader/the buttonless project ?

Do you do buttonless with bonding or not ?

Could you provide any log ?