DFU Bootloader SDK9.0.0: App does not start after update

RE: DFU Bootloader SDK9.0.0: App does not start after update

Mathias — Mon, 16 Nov 2015 10:18:57 GMT

Finally I got it working. I installed Keil µVision and transferred the project options of DFU and HRS project to the IAR projects line by line. I cannot tell the reason why it did not run before. Maybe wrong include pathes or an error in the linker command file. Thanks for the answers anyway.

RE: DFU Bootloader SDK9.0.0: App does not start after update

JohnBrown — Tue, 10 Nov 2015 09:17:25 GMT

I have the OTA DFU working with nRF51822 QFAAG20 (0x0057). Using SD 8 and SDK 9.0

However, I am not using the "buttonless" option. I added code to my app that checked for a switch being closed for a long time, and then wrote the appropriate value into the GPREGRET reg and executed a software reset. I did have to tweak the bootloader slightly, as my app did this before the SD stack was set up.

I only mention this to reassure you that the DFU with SD8 and SDK9 will work on the nRF51822 QFAAG20 (0x0057). Your app, however, may or may not. It depends on which peripheral devices you are using and how they might have changed.

RE: DFU Bootloader SDK9.0.0: App does not start after update

Stefan Birnir Sverrisson — Tue, 10 Nov 2015 06:35:55 GMT

Im wondering if you are attempting to flash the app directly, which is not going to work. You should flash the softdevice + bootloader and then upload the app via DFU in order to start the application. However, you can flash the application directly as described on this thread. Further details are available on this thread.

RE: DFU Bootloader SDK9.0.0: App does not start after update

Mathias — Mon, 09 Nov 2015 14:41:27 GMT

I ordered the nRF51 DK with the nRF51422 Chip. I got the same behaviour. I guess there is a problem in the IAR Project. I had also to fix lots of compiler problems because the pathes were missing. Is there any IAR example project which is running out of the box?

RE: DFU Bootloader SDK9.0.0: App does not start after update

Mathias — Mon, 02 Nov 2015 10:44:21 GMT

This answer did not help, thank you anyway. Does anybody had succes with the nrf51822 xxAA chip?

RE: DFU Bootloader SDK9.0.0: App does not start after update

Neodym — Thu, 29 Oct 2015 16:12:22 GMT

Hi, perhaps you find a solution here: devzone.nordicsemi.com/.../

Regards

RE: DFU Bootloader SDK9.0.0: App does not start after update

syntroniks — Thu, 29 Oct 2015 14:49:33 GMT

I never was able to get SD8 working on xxAA parts, so we switched to the latest silicon revision. I got my rework process swapping chips down to under 5 minutes with very high success rates.