Triode
Well-Known Member
I am following this project to build a USB interfaced PIC. I have the circuit working. But there's something odd. With the capacitors from the crystal to ground connected as shown the chip didn't do anything, the program has the led light up initially and that didn't happen. with them removed it works, it lights up and detects as a USB device. If I put the caps back in it quits working again. So what I have now is a setup exactly as shown on the web page i linked to on a breadboard but without the caps on the crystal, it just jumps from pin 13 to 14. So what I'm wondering is why is it working without the caps, why doesn't it work with the caps, and is this going to damage anything over time?
Btw, here is the exact crystal I ordered in case there are question about that.
I've always worked with internal oscillators before, so this is a total mystery to me.
Btw, here is the exact crystal I ordered in case there are question about that.
I've always worked with internal oscillators before, so this is a total mystery to me.
Last edited: