Hello
I would like to compile Direct Test Mode on Segger embedded Studio.
I follow all instructions with getting started assistant
but i have one error : error 5 cannot open source input file 'core_cm4.h' : No such file directory
I'm with a PC10040 DK
Thanks for your answer
Ah, I see. Glad to hear you got it working 
Sorry for waste your time.
I already install these two package, but it still report error message to me.
I used nRF5_SDK_15.3.0_59ac345 on the MACBOOK PRO.
Hi,
You have a quite old version of nRF CPU Support Package installed. Can you update to the latest (currently 8.21a) and try again? You can do that by selecting Tools -> Package Manager, then refreshing the list by pressing the circular arrows int he upper right parts of the window, and selecting to install the update (you can filter on "nordic" to find it easier). see screenshot:
