No response from the PPK,why?

[victor_CHINA]

dear nordic employee:

I want to use the PPK measure my hardware I set as the 《PPK_User_Guide_v1.1》 says,and the led1 is ok but the ppk cannot work well the details like the picture shows

1.png 2.png ppkwrong.png RTT.png

DOWNLORD WRONG.png DOWNLORD SETTING.png regards

[Bjørn Kvaale]

If you have an nrf5x dev kit, have you tried to measure the current on the nrf5x dk? Here is a quick start guide for that. I just want to make sure that the ppk is working with the simplest configuration first. Can you start the python executable then? From your image 2.png, it seems that you have setup the ppk correctly. From the error message in ppkwrong.png, it seems that there might be a faulty connection between your Segger J-Link and the Debug In port on the PPK. Also check the cables between the External DUT connection on the PPK & your external HW. Is there any power on your external HW (e.g. any lights that are on)? Also, have you flashed the FW to the PPK?

[Bjørn Kvaale]

Hi victor_CHINA. Got a tip from a colleague here: What if you try switching the COM switch in the middle of the PPK board to DK instead of EXT? What happens then? I have tried to test this exact setup, but have not gotten it working yet. Will let you know once I figure it out.