nrfjprog nrf5340 programming error when rbp enabled

RE: nrfjprog nrf5340 programming error when rbp enabled

Vidar Berg — Thu, 04 Jul 2024 05:41:41 GMT

Thanks for confirming. I have not been able to reproduce this here with my board. But using the --recover with the programming command is fine. I hope we can address this reliability issue you experienced in a future release.

RE: nrfjprog nrf5340 programming error when rbp enabled

Piyush_222 — Wed, 03 Jul 2024 18:05:02 GMT

Hello,

After running these commands below, I still get errors while programming.
nrfjprog --recover
nrfjprog --recover --coprocessor CP_NETWORK
nrfjprog --recover

Only the programming command with --recover works properly.

Thanks

RE: nrfjprog nrf5340 programming error when rbp enabled

Vidar Berg — Wed, 03 Jul 2024 07:42:30 GMT

Hello,

It seems like you may need to run the following sequence to ensure nrfjprog can unlock both cores. I will report this internally. I'm not sure if it is an issue with the documentation or nrfjprog.

nrfjprog --recover
nrfjprog --recover --coprocessor CP_NETWORK
nrfjprog --recover

[quote user="Piyush_222"]Is it fine to use only the programming command without any recover command before it?[/quote]

Yes, the nrfjprog will perform the same "recover" procedure internally when you append the --recover argument to your programming command, so the end result will be the same.

RE: nrfjprog nrf5340 programming error when rbp enabled

Piyush_222 — Tue, 02 Jul 2024 17:11:32 GMT

Hello Vidar,

I upgraded to the latest version and when I run this command first: nrfjprog --recover --coprocessor CP_NETWORK,
it gives the following error

[error] [ Client] - Encountered error -90: Command enable_coprocessor executed for 14 milliseconds with result -90
[error] [ Worker] - Application core access protection is enabled, can't enable coprocessor.

and I'm getting the same errors while programming.

But when I run only this command: nrfjprog -f NRF53 --program merged_domains.hex --verify --recover -r
without running any recover command before this, it works every time without any error.

Is it fine to use only the programming command without any recover command before it?

RE: nrfjprog nrf5340 programming error when rbp enabled

Vidar Berg — Mon, 01 Jul 2024 14:22:12 GMT

Hello,

Could you please try to upgrade nrfjprog to the current version (v10.24.2 at time of writing) and see if you still get the same result?

I did not manage to reproduce the error here. My setup:

- nrfjprog version: 10.24.2 external and JLinkARM.dll version: 7.94e

- Hex file devzone.nordicsemi.com/.../5355.merged_5F00_domains.hex

[quote user=""]

Then I tried each of the following before running the above command:
1. nrfjprog --recover --coprocessor CP_APPLICATION
nrfjprog --recover --coprocessor CP_NETWORK

[/quote]

The network core must be recovered first.

Link: https://docs.nordicsemi.com/bundle/ncs-2.6.1/page/nrf/device_guides/working_with_nrf/nrf53/nrf5340.html#readback_protection

Best regards,

Vidar