So, I finally finished the basic bring-up of the board I’ve been assembling the last couple of days. I found the dead short from 3V3 to GND under the ADC, but needed to do a lot of digging to find it.
Right now, the MCU seems to work using its internal oscillators, and a quick poke shows that the 12MHz crystal is working too. The I2C ADC and GPIO expander appear to be responding, but the RTC isn’t (yet?)
I also think I melted the push-buttons because they don’t push now, and there’s one LED I forgot to hook up to anything in the schematic…
