There is a question in Test Setp about the buttonless DFU sample using the nRF52832 DK board. (SDK is using 12.3.)

[Aser]

Hi
I am currently testing Buttonless DFU using SDK 12.3, nRF52832 DK.
Example test was conducted first using the DK board, but as you can see in the picture, it will fail. I don't know why.
Is the method wrong?

 

[Hung Bui]

Hi Aser, 

I assume that you didn't see the device advertised as "DFU Targ" after you set it to bootloader mode? What was the behavior after the write ? 

I suspect that the application has crashed, you may want to check if it enters any assert handler or if it resets. 

Have you flashed the bootloader ? Do you have any issue if you test the bootloader (without the buttonless application)?

[Aser]

Oh! I solved it.
I didn't know that I had to merge boot.hex and application.hex and download them to the chip in order to set the device to invoke boot mode without a button when the application is up.
I'm working on fixing that issue now and applying source to my project.

But I still can't find a command to call boot mode haha .... ㅠㅠ :(
Instead, the command you gave me seems to help a bit.
Is it right to call boot mode using that part?
I will try more. Thank you.