Debugging on PCA10004

Question

Is it possible to use the J-link to debug a stand-alone PCA10004 ? I am not using the motherboard. Powering the board separately. When I try and run debug in Keil I get error 
 
 JLink Info: Could not measure total IR len. TDO is constant high.

Håkon Alseth · Accepted Answer

Hi Andre, 
 The error indicates that you have setup the programmer in JTAG mode.
Try going into settings for your debugger (Options for Target ... -> Utilities -> settings) and set "Port:" as SWD. 
 Best regards
Håkon