why the net is locked and “”west flash --recover ” don‘t work

RE: why the net is locked and “”west flash --recover ” don‘t work

Håkon Alseth — Wed, 05 Jan 2022 09:31:55 GMT

Q1: Can you please attach the .log file from the recovery / program process?

Q2: Can you try this process?

1. recover network core (nrfjprog --recover --coprocessor CP_NETWORK)

2. recover application core (nrfjprog --recover)

3. power cycle the board (unplug board, wait 5 seconds, plug in board again)

4. program network core (nrfjprog --program <netcore_application.hex> --verify --coprocessor CP_NETWORK)

5. program application core (nrfjprog --program <appcore_application.hex> --verify)

Q3: Could you please update to newer segger driver? Can be downloaded from here (v7.60b at this time):

https://www.segger.com/downloads/jlink/

Q4: Can you try to program the device on another computer?

Kind regards,

Håkon

RE: why the net is locked and “”west flash --recover ” don‘t work

spring.liu — Wed, 05 Jan 2022 01:25:41 GMT

Didn't work ，The network core is still locked

RE: why the net is locked and “”west flash --recover ” don‘t work

Håkon Alseth — Tue, 04 Jan 2022 13:38:51 GMT

Hi,

Compile that example for board nrf5340dk_nrf5340_cpuapp, but set this in prj.conf instead to power up the net core:

CONFIG_BOARD_ENABLE_CPUNET=y

Then try to program a bluetooth example (which generates a project for both cores), or any other example that utilizes the network core.

Kind regards,

Håkon

RE: why the net is locked and “”west flash --recover ” don‘t work

spring.liu — Tue, 04 Jan 2022 12:35:50 GMT

devzone.nordicsemi.com/.../0878.log.log

What do I do next?

RE: why the net is locked and “”west flash --recover ” don‘t work

Håkon Alseth — Tue, 04 Jan 2022 09:30:21 GMT

Hi,

[quote user="spring.liu"]NRF_RESET->NETWORK.FORCEOFF = RESET_NETWORK_FORCEOFF_FORCEOFF_Hold;？ [/quote]

Yes, this is the register that controls the network cpu state, from the application cpu.

Could you share the log (log.log file created after calling "nrfjprog") from recovering both application core and network core?

RE: why the net is locked and “”west flash --recover ” don‘t work

spring.liu — Tue, 04 Jan 2022 09:17:32 GMT

NRF_RESET->NETWORK.FORCEOFF = RESET_NETWORK_FORCEOFF_FORCEOFF_Hold;？

RE: why the net is locked and “”west flash --recover ” don‘t work

Håkon Alseth — Tue, 04 Jan 2022 07:38:39 GMT

Hi,

As the application core controls the network core, via this register:

https://infocenter.nordicsemi.com/topic/ps_nrf5340/chapters/reset/doc/reset.html?cp=3_0_0_3_9_10#register.NETWORK.FORCEOFF

It is important that you recover the application core as well. Can you try to recover the app core first?

"nrfjprog --recover --coprocessor CP_APPLICATION --log" - if that still fails, it will generate a log.log file, which you can attach to this thread.

Kind regards,

Håkon

RE: why the net is locked and “”west flash --recover ” don‘t work

spring.liu — Tue, 04 Jan 2022 01:59:05 GMT

I need three boards to do it now. I need to fix it

At the first ，I use the nrfconnect ---->erase all ,but failure

I've tried this before " nrfjprog -f NRF53 --recover --coprocessor CP_NETWORK "

RE: why the net is locked and “”west flash --recover ” don‘t work

Håkon Alseth — Mon, 20 Dec 2021 13:47:18 GMT

Hi,

[quote user="spring.liu"]the version is nRF5340-DK 1.0.0。 i buy anohter one ，but the net also is locked .I hope you can give me a concrete solution[/quote]

I'm sorry to hear that the new kit also behaves like this.

Could you try the very latest version of nrfjprog? That can be downloaded from here:

https://www.nordicsemi.com/Products/Development-tools/nRF-Command-Line-Tools/Download?lang=en#infotabs

This is the recover commands that we use internally in tech support:

nrfjprog --recover --coprocessor CP_NETWORK && nrfjprog --recover --coprocessor CP_APPLICATION

Does it still misbehave?

Kind regards,

Håkon

RE: why the net is locked and “”west flash --recover ” don‘t work

spring.liu — Mon, 20 Dec 2021 09:29:43 GMT

the version is nRF5340-DK 1.0.0。 i buy anohter one ，but the net also is locked .I hope you can give me a concrete solution

RE: why the net is locked and “”west flash --recover ” don‘t work

Håkon Alseth — Thu, 25 Nov 2021 15:46:38 GMT

Hi,

Could you share which version of the nRF5340-DK that you are using?

Have you used this one specific DK to measure current consumption on before? Ie. is the "nRF current measurement" solder bridge cut? If yes, you need to use a jumper on this pin header.

Kind regards,

Håkon

RE: why the net is locked and “”west flash --recover ” don‘t work

spring.liu — Thu, 25 Nov 2021 02:55:35 GMT

it is the same DK 。so how can solve the problem NCS version 1.7.1

RE: why the net is locked and “”west flash --recover ” don‘t work

Håkon Alseth — Wed, 24 Nov 2021 08:43:31 GMT

Hi,

[quote user="spring.liu"]I tried，and useless. one DK development board is ok， other is not work。 It's been bothering me for a week[/quote]

I'm sad to hear that this has taken so much of your time.

Could you share which version of the DK is working and which is not?

Kind regards,

Håkon

RE: why the net is locked and “”west flash --recover ” don‘t work

spring.liu — Wed, 24 Nov 2021 01:14:54 GMT

I tried，and useless. one DK development board is ok， other is not work。 It's been bothering me for a week

RE: why the net is locked and “”west flash --recover ” don‘t work

Håkon Alseth — Tue, 23 Nov 2021 14:44:40 GMT

Hi,

Could you try recovering the app core first?

nrfjprog --recover -f nrf53 --coprocessor CP_APPLICATION

Kind regards,

Håkon