Hello,
I designed a board with a samd21g18 microcontroller. Now, I tried starting it and at first it looked good, nothing exploded. I broke out all the connections I would need for the SWD/JTAG connector and connected those with an Atmel-Ice programmer. Now I started Atmel Studio and wanted to see if it would see my device (Tools->Device Programming). It said that it could see the device connected, but the reading of the device signature ended in an error.

A few notes on my board, I changed with jumpers.
I noticed that I routed the reset on pin 40 to ground, so I changed it. Now it goes through the 10k resistor to 3.3V.
Another thing is, that I power it through pins from another arduino due (as noted on the POWER_POINTS.png)

If you need any other information in order to maybe help me, let me know.

thanks,
8dm7bz

 

Hey it's me. I just tried hooking everything up again. And who would have guessed, it works now.
I suspect it was some loose connection on my self build jtag connector.

thanks,
8dm7bz