How to flash binary into nRF5340 DK external flash using nrfjprog command line tools.

[Kaushik Parsana]

Hello

I am working on to flash my firmware binary into external flash by using nrfjprog commandline tools.

I have used below command to program and verify the external flash programming.

1) nrfjprog --family NRF53 --program zephyr.hex --qspichiperase --log abc.log

2) nrfjprog --family NRF53 --verify zephyr.hex --log abc.log

But it gives below error, can anyone tell me what command should I have to use to program the external flash?

[dejans]

Hi,

Command qspieraseall can be used for erasing external flash.

nrfjprog --qspieraseall

Afterwards, you can proceed to programming the application. When programming, you could try adding --verify to the first line, like this

nrfjprog --family NRF53 --program zephyr.hex --qspichiperase --verify

After you erased external flash, you could also specify the core you want to use when programming

nrfjprog --family NRF53 --coprocessor CP_APPLICATION --program zephyr.hex --qspisectorerase --verify

Please let me know the results of the above-mentioned approaches.

Best regards,
Dejan

[Kaushik Parsana]

nrfjprog --qspieraseall

nrfjprog --family NRF53 --program zephyr.hex --qspichiperase --verify

nrfjprog --family NRF53 --coprocessor CP_APPLICATION --program zephyr.hex --qspisectorerase --verify

The above command works for me now, I am not sure why it was not working previously, I had change nothing in my system.

Thanks,

Kaushik

[dejans]

Hi,

I am glad to hear that suggested commands work for you.

Best regards,
Dejan