How to connecting the Power Profiler Kit to a computer and measuring current without an nRF5 DK?

[zhangchi]

In spec "PPK_User_Guide_v2.3.1" ,chapter " 6.6 Measuring current on custom hardware without an nRF5 DK "

I connect PPK to computer as the picture above, micro USB for power supply and J-Link for PPK connection. But the app "nRF connector-power profiler" can only find J-Link but can't find PPK device.

What may cause this problem? Is this connection method right? Or what kind of J-Link we should use? 

[Simonr]

Hi

Just to confirm. Have you set all the switches to the correct state for this setup? SW2 to External, COM to EXT, and SW4 to Reg.? Have you connected the device you're going to test to the External DUT header (P16)? Any SEGGER J-Link debugger should suffice.

Could you also, please upload the log from nRFConnect, so I may have a look.

Best regards,

Simon

[zhangchi]

In addition, I find LED2 is lit on the PPK. 

In spec "PPK_User_Guide_v2.3.1" ,chapter 7,  "4. Verify that the LED2 is lit on the PPK. "

What is the function of LED2?