Hello,i am trying to connect my Arduino Zero through SWD to my Atmel studio. It was workign firn for about an hour, but now everytime i try to connect i get message:
No device detected. Error 4109
Unable to enter programming mode. Verify device selection, interface settings, target power, security bit, and connections to the target device.
The problem is that i created a custom AT SAM D21G18A PCB, and i want to uplaod the bootlaoder, so i coudl use it via native USB port and Arduino IDE. But i was getting the same upper message so i thought i wired someting wrong, and i tested same conenction on Arduino Zero original PCB. As i said, it worked fine for an hour, now i am getting same message as on my custom pcb.