Hi,
I recently purchased nrf7002-DK and wanted to evaluate it.
I was first able to flash the blinky example, and it seems to work (although maybe it was the pre-loaded blinky program).
I was hoping to see some output on VCOM1, but I did't see any. I build/flashed the "three thread" example (Board: nrf7002dk_nrf5340_cpuapp_ns). it didn't appear to work (didn't see any LEDs flashing nor message on terminal).
I erased it and tried to re-flash the blinky example, but it would not flash. I have a suspicion that I didn't do the erase process in the correct order.
I used the Programmer v3.0.8, and it shows that "device is protected".
I also tried:
>> nrfjprog --recover --coprocessor CP_NETWORK
Failed to enable coprocessor with unknown error.
ERROR: Access to the selected address is blocked by the SPU.
After doing some search, I cam across the nordic documentation site: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.5.0/nrf/ug_nrf5340.html#readback-protection-error
"Recovering the network core erases the flash memory of both cores. Recovering the application core erases only the flash memory of the application core. Therefore, you must recover the network core first. Otherwise, if you recover the application core first and the network core last, the binary written to the application core is deleted and readback protection is enabled again after a reset."
I probably didn't erase it in the correct order (should have been more careful).
Anyway, is there a way to fix my nrf7002-DK? Have I messed it up beyond repair?
I haven't even got to do any wifi stuff...
Thanks,
Makoto
