Power profiling kit issue on SDK14

[Rbai]

We are using the nRF6707 power profiler kit to measure our EVB’s current consumption in advertising mode. We use the example app ble_app_pwr_profiling. The only change is the advertising interval. The interval is changed to 500ms from 100ms #define NON_CONNECTABLE_ADV_INTERVAL MSEC_TO_UNITS(500, UNIT_0_625_MS).

See attached screen capture. The avg current consumption seems to be correct, but the actual plotting is irregular.The interval sometimes shows 0.3 second, sometimes 0.6adv.png second, etc, which is not what we expected. Is there a setting so that the average window can show exactly 500ms interval?

[Stian Røed Hafskjold]

There are some issues with buffer overflow with the RTT implementation. You can try to stop the trigger window when you are using the average window, and vice versa.

[wlgrd]

The trigger window restarting without you telling it to seems highly irregular. I've been testing this kit for quite some time and never noticed this behavior. The reason you are experiencing drop outs from average is because you are running the trigger window for sure. Try setting the trigger level to e.g 50000 to really force it to not send you data. Also, try commenting away line 236 in ppk.py # plotter.start_log_thread() if you experience delays (just as a test). But, even if you have delays, the time between events should be correct.