Hi, I have a project that uses a Mega 168A. I developed on a MEGA168 and everything worked fine. I switched to a Mega168A because money, and now the code is broken. It appears one of my 2 ADC inputs is getting corrupted somehow. Maybe a timing issue with the mux? I am using interrupts to read the ADC results and a software timer to start the conversions.
Are there any differences between the 168 and 168A that would cause this?