What is the reason behind to small power consumption peaks at every 6 milliseconds when CPU is in low power Sleep mode

[Santosh Tangudu]

When I am using power manage function to keep device low power mode, for every 6 milliseconds I am getting small spike of ~300 micro Amp and average current of 300 micro Amp for 400 micro Seconds. I attached images below. Sleep_peaks.PNG Sleep_peak.PNG

So what is the reason behind for those peaks. In my code I enabled SPI master, BLE connection mode, RTC1 timer for 1 second interval interrupt.

[Bjørn Kvaale]

Which device are you using? Are you using a dev kit or your own custom board? Are you using an SDK example or is it your own custom code?