PPK2 trace hangs

[Pema]

Hi,

I am using nRF Connect 3.9.1 and power profiler 3.2.1. I have noticed that if I have a measurement on-going and go away for a while (4mins tested while writing this), e.g. switch to another Windows program, the trace is freezed and not progressing when I return (there is activity though since the indication around the stop button still moves). I assume it is trying to "catch up" with the measurements done while I was away. However, this extends in time and when I get bored of waiting, I click "stop" and then "start" to re-start the measurement. Then the old trace is removed, but there is no new one (the indication around the stop button is there though). I have to close the app, cycle the power on the PPK hardware and start from scratch to get the measurements running again.

/Peter.

[SwRa]

Hi,

This is indeed a weird situation as I am unable to reproduce this. I tried running the power profiler application in the background and it did freeze, but resumed automatically without any action after a few seconds.  Are you sure that you are not just hitting the allocated buffer? If you check the sampling parameters in the power profiler, you can see that the maximum time to sample is 432 seconds after which it stops sampling.

Kindly check and let me know. 

Regards,

Swathy

[Pema]

Hi,

I use 10ksamples/60min. I tested again, and now it does seem to work. The trace is resumed which makes me wonder if it could have to do with what program I go away to. I know I had the problem when I was using a CAD-tool. This time I was only using the web browser. I'll try some more...

/Peter

[Pema]

Hi again,

I am still having this problem using nRFConnect 3.9.3 and profiler v3.3.0. The trace suddenly freezes. It seems to happen, as before, when I leave the profiler sw for some other sw (today I am using only Chrome and TeraTerm). I can't really pin-point when it happens, only that it does happen and quite frequently (which makes me haveing to restart the PPK2). It seems to have appeared in the later version of nRFConnect and I also have problems with the programmer (as others as well). So maybe there is a connection?

/Peter

[SwRa]

Hi Peter,

Could you try again after downgrading to v3.7.1 and let me know if it works fine to verify.? We are getting a few reports on the programmer issue as well. What is the version of your programmer..? We are currently working on a fix for this.

Kind Regards,

Swathy

[Pema]

Hi,

I am using programmer v 2.1.0. I'll try to downgrade and see what happens.

/Peter

[Pema]

Hi again,

I have downgraded to nRFConnect v3.7.1 and it seems the power profiler (v3.1.3) runs much smoother now. It also feels quicker at start compared with the later versions. The nRFConnect also starts up much faster on my pc than with the later 3.9.x. I have also confirmed that I can program the 9160 using v3.7.1 (programmer v1.4.11), something I couldn't do with v3.9.3.

/Peter