I put two 100nF capacitors next to Vdd/Vss. The problem was noises in power.
I did some changes to my application on axes control with the newer clock and it was perfect works.
I replaced all my circuit but the error is the same. INTRC and INTRC_IO fuses don't work. I had to manually program using #BYTE OSCCON = 0xFD3 and OSCCON = 0b01111000; but it isn't work up to 8MHz. ...
I'm using PCWHD Compiler version 4.068 and the PIC 18F4431.
I'm trying to use the Phase Locked Loop (PLL), but isn't work. I put a crystal 10MHz (from pin 13 to 14) with 2 capacitors 22pF (to ...