nRF PPK2 "Failed to start PPK"

RE: nRF PPK2 "Failed to start PPK"

Hans de Jong — Fri, 07 Jul 2023 12:33:15 GMT

I'm now confused. I've restarted my machine and its working as expected now. Can connect and use the device as normal.

I'm not sure as to why. But I'm glad it's operational now again.

RE: nRF PPK2 "Failed to start PPK"

Hans de Jong — Fri, 07 Jul 2023 11:58:18 GMT

Attached is a verbose log.

[quote userid="122502" url="~/f/nordic-q-a/101639/nrf-ppk2-failed-to-start-ppk/435214"]Have you tested with another USB cable and different port? I once wasted to many minutes due to a USBcable without any data pins.[/quote]

Yes I have. Made no difference.

[quote userid="122502" url="~/f/nordic-q-a/101639/nrf-ppk2-failed-to-start-ppk/435214"]Could you test the PPK2 on another computer, from the system requirements it says Ubuntu Linux however my colleagues said that they have used it with Manjaro in the past[/quote]

At this moment unfortunately, no.

I can try later.

[quote userid="122502" url="~/f/nordic-q-a/101639/nrf-ppk2-failed-to-start-ppk/435214"]In the app, do I understand correctly that is does not show as something similar to this?[/quote]

It does list the PPK2 device in that menu. But when I try to connect it logs the "Failed to start PPK" error.

devzone.nordicsemi.com/.../2023_2D00_07_2D00_07T11_5F00_50_5F00_57.730Z_2D00_log.txt

RE: nRF PPK2 "Failed to start PPK"

runsiv — Fri, 07 Jul 2023 11:32:57 GMT

Hi Hans

Thanks for the update.

Could you enable verbose logging in the nRF Connect for Desktop app for the power profiler, you will find it in the about tab and try again

In the app, do I understand correctly that is does not show as something similar to this?

Just two more things to make sure we don't forget the basics.

Have you tested with another USB cable and different port? I once wasted to many minutes due to a USBcable without any data pins.

Could you test the PPK2 on another computer, from the system requirements it says Ubuntu Linux however my colleagues said that they have used it with Manjaro in the past

Regards

Runar

RE: nRF PPK2 "Failed to start PPK"

Hans de Jong — Fri, 07 Jul 2023 11:12:40 GMT

Just to verify, some more info:

A PPK2 device does show up in the devices list, but it can't connect as it throws the "Failed to start PPK" error message.

If I open the Programmer app (or short TP34 to GND on power up of the PPK2 device) it does show up as a "Open DFU Bootloader" with serialno E2204B17A9D8. If I then try to connect in PPK app, it asks for the device to be programmed. I've attempted this numerous times but there does not appear to be happening anything (I've once had it sit for 10 minutes). The logs show only this:

2023-07-07T11:00:56.788Z INFO Getting serialport options from persistent store E2204B17A9D8.pc-nrfconnect-ppk
2023-07-07T11:00:59.419Z INFO Validating firmware for device with s/n E2204B17A9D8
2023-07-07T11:00:59.434Z DEBUG Device is in DFU-Bootloader, DFU is defined

Perhaps noteworthy is that I don't see any ttyACM device in /dev/ when the PPK2 gets connected. I've also tried the ppk2-api-python (https://github.com/IRNAS/ppk2-api-python), but that software is not enumerating any PPK2 devices.

When I open the device in the programmer app, I can select it and choose pca63100_ppk2_7453297.hex, but I'm not sure if this is the correct application file. But the programmer app doesn't allow me to program this HEX, as it shows "UNKNOWN_FAMILY" on the right-hand side of the file/device layouts.

Here is a system report:

# nRFConnect System Report - 2023-07-07T11-10-42.835Z

- System:     Dell Inc. Precision 3530
- BIOS:       Dell Inc. 1.7.4
- CPU:        1 x Intel Core™ i7-8750H 2.2 GHz 12 cores (6 physical)
- Memory:     6.1 GB free of 15.4 GB total
- Filesystem: /dev/nvme0n1p2 (ext4) 459.4 GB 62.9% used

- OS:         ManjaroLinux (23.0.0) linux x64

- Versions
    - kernel: 5.15.106-1-MANJARO
    - git: 2.40.1
    - node: 16.17.1
    - python: 3.11.3
    - python3: 3.11.3
    - nrf-device-lib-js: 0.6.12
    - nrf-device-lib: 0.15.3
    - nrfjprog DLL: 10.19.1
    - JLink: JLink_V7.88k

- Connected devices:
    - E2204B17A9D8 : undefined