Start app from bootloader without updating?

RE: Start app from bootloader without updating?

bjorn-spockeli — Thu, 31 Aug 2017 19:01:37 GMT

No, there is no command that does this in the Secure DFU Service. However, it is possible to modify the Secure DFU Service by adding another opcode that can be written to the DFU Control Point characteristic to implement a reset to the application, but I think that implementing the timeout is far easier.

RE: Start app from bootloader without updating?

Agge — Wed, 30 Aug 2017 12:31:17 GMT

Thank you, so I conclude from that there are no command to reboot or start application.

RE: Start app from bootloader without updating?

bjorn-spockeli — Wed, 30 Aug 2017 11:23:06 GMT

I would suggest that you implement a timeout as described in this or this answer. If the device enter bootloader mode, but there is no DFU activity, then the device should reset and go back to the application.

RE: Start app from bootloader without updating?

Agge — Wed, 30 Aug 2017 09:27:55 GMT

Yep, I have no problems with that. My problem is that sometimes our users accidentally enter bootloader mode and we just want to be able to send a command from Android/IOS to start the application instead.

RE: Start app from bootloader without updating?

bjorn-spockeli — Wed, 30 Aug 2017 09:10:41 GMT

Have you flashed the SoftDevice, Bootloader and Application to a NRF52832 and the device only enters the bootloader but not the application. If this is the case then you have not generated the bootloader settings page that indicates that there is a valid application, see appendix 1 in this blog post.