Hello. I can't program the nRF5340 of a couple of boards I recently received. I have it powered via USB (5V), and nRF_VDD is powered up to 1.8V as expected.
I've probed all the pins of my hardware and compared them against the dev board hardware. The only difference I've noticed is that my DECUSB pin (B6) is 0V, whereas the same pin is 3.3V on the dev board. My hardware just uses a cap to ground equivalent to the dev board. Is there a reason why this pin might be 0V, other than a manufacturing issue? The MCU is unprogrammed and completely erased.
Thanks,
Rob