It seems that every little widget (processor or whatever) I work with has a serial port on it, which is extremely handy for printing status and debugging information, etc. These serial ports are of course “TTL” level, which means they’re…
Followup to Atmel Xmega ADC Problems
Time marches on and we’ve had to perform a new PCB revision for the board containing the Atmel Xmega part. So I had the opportunity to add an external voltage reference to the chip. This was one of the things…