Hello everyone! This is my first post...
I've built a breakout board for the MCU with the minimum number of components (schematics attached),
but I can't program it with the atmel ICE! Atmel Studio does not recognize the chip and give "Error 4109".
I double checked the welds with a tester and there are no short circuits and the voltage on the VDDCORE pin is about 1.2V.
What could be the problem?