nRF5380-PDK error when flashing: Failed to download application, Undocumented error

[ahjr]

Hello,

When I try to load a simple code to the app core of the nRF5340 with Segger Embedded Studio I get an error "Failed to download application. Undocumented error"

I look a bit deeper in the logs and it states:

• Programming 2.2 KB of addresses 00000000 --- 000008d3
• Programming 0.0 KB of addresses 000008d4 --- 000008d7
• Timeout while restoring target, RAMCode did not respond in time. (PC = 0xFFFFFFFF, CPSR = 0xFFFFFFFF, LR = 0x01000003)!
• Failed to restore target. RAMCode never stops
• Timeout while calculating CRC, RAMCode did not respond in time. (PC = 0xFFFFFFFF, CPSR = 0xFFFFFFFF, LR = 0x41000003)!Timeout whil
• Failed to erase sectors


I looked around and tried this: https://devzone.nordicsemi.com/f/nordic-q-a/77337/nrf5340-timeout-while-checking-target-ram-ramcode-did-not-respond-in-time but it did not work (in command line when I type "nrfjprog -v" I get "nrfjprog version: 10.14.0 external" and "JLinkARM.dll version: 7.52d"

Not sure what else I to try at this point. Maybe I can re-flash the JLink on the board? Not sure. If anyone has resolved similar errors on the nRF5340, please let me know. This same code works on my colleague's computer and the only difference that we noticed was his SES for ARM was 32-bit and mine is 64-bit. I could re-install Segger as well, but I'm not convinced that it will solve anything.

Thanks!

[Kenneth]

Hello,

Please see:
https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/ug_nrf5340.html

"The nRF5340 PDK has been deprecated with the introduction of the production-level nRF5340 DK. To determine if you have a PDK or DK, check the version number on the sticker on your kit. If the version is 0.11.0 or higher, the kit is an nRF5340 DK."

Best regards,
Kenneth

[ahjr]

It's definitely a PDK and not a DK (version 0.8.0). I'm assuming that this means I need to revert to SDK v1.4.0?

[Kenneth]

I think developing on a preview sample is not a good idea, in addition using a rather old sdk means that you are not using a qualified softdevice:
https://infocenter.nordicsemi.com/topic/comp_matrix_nrf5340/COMP/nrf5340/nrf5340_ble_qdid_qual_matrix.html 

Please order a new nRF5340-DK as soon as possible.

Kenneth

[ahjr]

Just to be clear, I am currently using SDK v1.6.1. In any case, I ordered an nRF5340DK, hopefully it works.

[Kenneth]

If you have any issue with the nRF5340-DK then try this:
https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/ug_nrf5340.html#readback-protection-error 

Kenneth

[ahjr]

Thank you. Incidentally, it looks like executing commands through nrfjprog works (for instance, I can clear flash using nrfjprog but not with SES). I can also load code onto the network core with SES without any trouble.

Is there an nrfjprog command to flash selective cores (specifically the app core) on the 5340PDK?

[ahjr]

I purchased a 5340DK (not SDK) and it looks like it's working.