I'm working with a PIC18F4455. It is rated up to 48 MHz.
I have both a 20 MHz crystal and a 48 MHz crystal.
With my 48 MHz crystal, I have an event that is supposed to take exactly 3 seconds, but takes ~9.7s. If I put in the 20 MHz crystal, it takes ~7.2 seconds, which is exactly how long I expect it to take @ 20 MHz.
The 48 MHz crystal I have is here:
**broken link removed**
I notice that the operating mode is 3rd Overtone. Does this mean that it is running at 1/3 of 48 MHz? The math would suggest that.
If that's the case, which type of crystal am I looking for to get a full 48 MHz?
I have both a 20 MHz crystal and a 48 MHz crystal.
With my 48 MHz crystal, I have an event that is supposed to take exactly 3 seconds, but takes ~9.7s. If I put in the 20 MHz crystal, it takes ~7.2 seconds, which is exactly how long I expect it to take @ 20 MHz.
The 48 MHz crystal I have is here:
**broken link removed**
I notice that the operating mode is 3rd Overtone. Does this mean that it is running at 1/3 of 48 MHz? The math would suggest that.
If that's the case, which type of crystal am I looking for to get a full 48 MHz?