Current measurement in nRF51422 Development Kit

Question

Hello, 
 I am working with nRF51422 & would like to know if I can measure current of single event & multiple events (pictures attached) as detailed as possible. I have cut SB9, mounted 10ohm resistor for R6 & connected probs on Oscilloscope as mentioned in user guide (Pg18). I just dont want to measure over all consumptions but in detail. Any document & procedure will be helpful. 
 
 
 Thanks in Advance.

Stefan Birnir Sverrisson · Accepted Answer

Hi 
 Perhaps you can find useful information in the current consumption guide . 
 To measure the current, you could capture a single connection event like in your first image and try to find some averaging function in your oscilloscope, and perhaps do the same for multiple connection events if you want to see average current consumption over a longer time period. 
 Mounting a resistor on R6 and measure voltage to see the current consumption is however not a good method to see ultra low currents of a few microamps, e.g. to see what the sleep current is. To measure the sleep current it is better to use a multimeter that is capable of measuring microamps, and measure the current directly, as described in method 2 on page 18 in the user guide . If you choose a long advertising/connection ineterval (e.g. 4 seconds) then the multimeter will have enough time to stabilize the reading of the current consumption and you will see the magnitude of the sleep current. Also, if you choose a very short advertising/connection interval (e.g. 20ms) then the multimeter will read the average current consumption. For reference, I use this multimeter which does the job just fine. On second thought, perhaps a multimeter with autoscaling would be more convenient. 
 I measure the current often with power analysis tool From Agilent/Keysight where I can see the waveform and accurately read the current consumption at any moment, low or high current, and also measure average current, but that is a very expensive tool.