Hi, I'm working on custom PCB and I have small issue. After making PCB I was trying to connect, but no luck - "(unable to connect to the target)"
Maybe there is something wrong with my schema:
or maybe with PCB:
I have tested with different NRF chip, and also with different crystal.
What should I test ? How to verify that chip is working ?
Hei Øyvind, Thank you for your answer. I'm newbe in this subject so I will redesign PCB based on your comment and also on guidelines. I'm going to Oslo later today so I will have time there to teach myself more in this subject :)
Unfortunately is does not answer to my problem which was about connection through SWD - and this part does not work at all. I ttried to replace NRF51 chip on working module with the one (or three) that I have but non of them seems to work so I have to order different version.
Does this design looks more proper ?
Thank you, Robert
Hei Øyvind, Thank you for your answer. I'm newbe in this subject so I will redesign PCB based on your comment and also on guidelines. I'm going to Oslo later today so I will have time there to teach myself more in this subject :)
Unfortunately is does not answer to my problem which was about connection through SWD - and this part does not work at all. I ttried to replace NRF51 chip on working module with the one (or three) that I have but non of them seems to work so I have to order different version.
Does this design looks more proper ?
Thank you, Robert
