Power Profile Kit : Fail to measure current consumption.

[pankti583]

Hello,

The Power Profiler Kit(PPK) is not able to measure current consumption. I got this notification asking to reprogrammed the device, I clicked yes and then-after it said failed to read ppk                                                                                                                                                                                                       metadata.I went through Nordic DevZone and User Manual for PPK..

I followed the steps as mentioned in user manaul :                                                                                                                               

1. I downloaded Python v2.7.12 with 32-bit Microsoft Windows x86 Installer, upgraded the pip with the latest version.
2. Downloaded PPK software packages and ran python_packages.bat. There I got warning while instaling pyside :-                                                                                                                         Warning: The software is tested with PyQtGraph >=0.10.0, and may not work with your version (0.11.0)
3.  Also, mounted PPK on nRF52840 DK accordingly, as shown in user manual and have kept DUT select, Power Select and COM switch all set to DK.
4.  I flash flash_ppk.py script it said following :                                                                                                                                                                                                                                                                                          PPK erased
                                                                 PPK reprogrammed
                                                                 PPK ready to go.

5. I ran ppk.py and got the following thing : Initialization failed, could not read calibration values.

Currently, Python v2.7 was ended in Jan 2020, so I tried with different version of python above 2.7. With python v3.7 on the terminal, i got following thing : only these python versions are supported: [(2, 6), (2, 7), (3, 2), (3, 3), (3, 4)]. When I tried with the version supported with (3,3) and (3,4) it gave Runtime error: python v3.5 above required. I tried all the different version of python. got the following ---> No module named 'PySide'
                                              Software needs 'PySide' installed
                                               Please run pip install 'PySide' and restart 

After installing Pyside and restarting it, there was no change got the same warning and error :-            

Python version in use: 3.7.0

Checking installed packages
pyside: 5.15.0
pyqtgraph: 0.11.0
numpy: 1.19.1
pynrfjprog: 10.9.0
Warning: The software is tested with PySide >=1.2.4, and may not work with your version (5.15.0)
Warning: The software is tested with PyQtGraph >=0.10.0, and may not work with your version (0.11.0)
Initialization failed, could not read calibration values.      

Before python v2.7.12 support ended, I was able to reprogrammed the PPK following the steps from manual, and measure current consumption. Currently, I am not able repraggemed it, is it because of python v2.7.12 ended? Is there any other way to reprogram the PPK?

[Simonr]

Okay

The LED behavior you're describing seems correct to me.

A few more things:

• Make sure that the nRF power source switch on the DK is set to VDD, the VEXT->nRF switch is set to OFF, and that the nRF ONLY|DEFAULT switch is set to DEFAULT.
• Check that you have the latest version of nRFConnect for Desktop and the Power Profiler app.
• Check that you have the latest JLink drivers.

Can you confirm that you haven't done any modifications to the DK that might have interfered with the routing on it? Can you also provide a picture of the PPK mounted on the DK so I can have a look?

Best regards,

Simon

[pankti583]

Hi,

Thank you, it is solved now, I had to update the latest J-link Drivers.