PPK: Failed to write input to target

RE: PPK: Failed to write input to target

Simonr — Mon, 25 Apr 2022 12:20:26 GMT

What version of the SEGGER software are you running exactly? We're looking into this, but are not able to find the correct version to make sense of this error message.

Best regards,

Simon

RE: PPK: Failed to write input to target

crides — Thu, 21 Apr 2022 18:25:19 GMT

I tried to erase and let the power profiler reflash, same result. I don't think I can use `nrfjprog` for writing to the RTT console. When I modified the app to print out the error, I get:

```

13:22:36.980

Initializing the PPK

13:22:36.981

SEGGER serial number: 000801030890

13:22:36.981

SEGGER version: J-Link EDU Mini V1 compiled Mar 3 2022 10:17:12

13:22:38.693

Failed to start PPK

13:22:38.693

Unhandled error. ('PPK command failed: {"error_code":9,"message":"JLINKARM_DLL_ERROR","origin":"Error when running nrfdl_rtt_write"}')

13:22:38.834

PPK opened

```

RE: PPK: Failed to write input to target

Simonr — Thu, 21 Apr 2022 13:03:28 GMT

Can you try using the nRF command line tools to do a recovery or a full erase of the PPK. Then you should get prompted to flash the Power Profiler firmware the next time you open the device in the Pwoer Profiler app.

nrfjprog --recover or nrfjprog --eraseall should do the trick. If you have issues, try doing the nrfjprog commands with a --log at the end and upload the log here, and I'll take a look.

Best regards,

Simon