Huge difference on the results on measurements of different PPK firmwares.

RE: Huge difference on the results on measurements of different PPK firmwares.

Øyvind — Tue, 30 Mar 2021 07:05:00 GMT

Also, can you provide a screenshot of the whole Power Profile window to include all settings that you are using? In v3.1.1 are you enabling averaging? Please disable this and do a measurement with highest possible frequency in v3.1.1.

In v3.0.3 the averaging button is not available, and this may be the root cause for the difference. To enable "Save / Export" in v3.0.3, you can use CTRL+ALT+SHIFT+L.

Unfortunately, downgrading (roll back) the Power Profiler app is not a straight forward task. Will get back to you on that one.

-Øyvind

RE: Huge difference on the results on measurements of different PPK firmwares.

Øyvind — Tue, 30 Mar 2021 06:47:17 GMT

I've talked to our SW team to check if there are any changes in the Power Profiler app. They ask you to use "Shift + Left click and drag" to mark the area of interest. Then click on "Save / Export" and save it as a .ppk file. Please do this for both measurements.

Let me know if anything is unclear.

Kind regards,
Øyvind

RE: Huge difference on the results on measurements of different PPK firmwares.

Cássio Miranda Coelho Barbosa — Mon, 29 Mar 2021 14:38:04 GMT

Hello Øyvind,

Our sensor is a nRF51822 + Accelerometer(KX122) + CR2477.

We are using a regular 15cm micro USB cable. No hubs.

The only difference is the version of the power profiler Kit.

Over the weekend we continued to run some tests trying to eliminate variables and the results are still the same.

Thanks for helping us!

RE: Huge difference on the results on measurements of different PPK firmwares.

Øyvind — Mon, 29 Mar 2021 13:07:45 GMT

Hello,

Due to Easter holiday we are currently lower staffed than usual, and some extra time must be expected to provide an answer. We apologize for the inconvenience this may cause.

Are you using nRF51 or nRF52?

Can you please provide more information on the test setup you are using? What kind of USB cables are you using? Are you connecting through a USB hub?

Thank you.

Kind regards,
Øyvind