All,
I have been working on a project lately which is an ATMega328p controlled power supply. I programmed the chip using the Arduino Uno board and I want to use a 16MHz crystal instead of the onboard 8MHz oscillator. I've been doing some research and people are saying I need to set fuses, but I'm not sure how to go about doing that. I only ran into this problem because I set up a 16MHz oscillator with 22pF caps and a 10k resistor and I was getting no clock signal into the chip. I downloaded the schematic from Arduino.cc and it showed to hook up my crystal across XTAL1 and XTAL2 and that's what I did and looking at those two pins on a scope I am getting 5V on the pins but it stays high. If someone could let me know if that would be a wiring problem or something different like setting fuses for example. This is my first project while using the ATMega328p out of the Arduino board so I'm having some troubles.