Jlink not working (no idcode detected)

[HRB]

Hi,

 I am running into a problem on PAC10056, please help,  pca10065 used to work fine, don't know what caused, I cannot run or debug code on it through SEGGER, I got 

Then I found I even cannot see the "JLINK CDC UART Port" under device manager, I found some help online, then I put the pca10056 into boot loader mode by holding the IF BOOT/RESET button while turning on power, after that copy and paste J-Link OB-SAM3U128-V2-NordicSemi 170724.bin int to BootLader; after I can see "JLINK CDC UART Port" under device manager.

 if I run "blinky_pca10056" in Segger, build and debug, I saw:

No matter to select yes or no, will get same error as above.

If I run J-Link command utility, I got:

Thanks,

HRB

[RK]

you're using JTAG mode not SWD mode (as you can see from that output below where it's trying to work out the IR scan chain length). Wherever you have this configured, put it back to SWD

[HRB]

Thank you RK for your help, if try SWD in Jlink, still problem, I got:

Thanks,

HRB

[Martin Lesund]

Hi HRB,

Have you had any progress with the issue?