I am new in PIC18 family. At the moment I am trying to program a PIC18F2220, using 4 MHz internal oscillator. I am using Hi-Tec C compiler. Seems like there's no INTIO configuration bit or word in Hi-Tec C. I don't know how to configure for internal OSC in the configuration word. All I can do is set up OSCCON register 0b01100000. But it doesn't work. I think I have to set up the configuration word as well. Can someone please help.