Hello
I am new to this forum, I am a RF Engineer trying to use a 18F1220 with its internal oscillator. So far I have been unsucessfull in doing this. When using MPLAB and a IDC2 in debugger mode the Blink program works fine. When I program the device and run it on its own power it does not work. I think I traced it to the 18f1220.inc file, CONFIG1H fuse.

;************************************************* ***************
;* 18F1220.INC *
;* *
;* By : Leonard Zerman, Jeff Schmoyer *
;* Notice : Copyright (c) 2004 microEngineering Labs, Inc. *
;* All Rights Reserved *
;* Date : 01/27/04 *
;* Version : 2.45 *
;* Notes : *
;************************************************* ***************
NOLIST
ifdef PM_USED
LIST
"Error: PM does not support this device. Use MPASM."
NOLIST
else
LIST
LIST p = 18F1220, r = dec, w = -311, f = inhx32
INCLUDE "P18F1220.INC" ; MPASM Header
__CONFIG _CONFIG1H, _XT_OSC_1H
__CONFIG _CONFIG2H, _WDT_ON_2H & _WDTPS_128_2H
__CONFIG _CONFIG3H, _MCLRE_ON_3H
__CONFIG _CONFIG4L, _LVP_OFF_4L
NOLIST
endif
LIST
EEPROM_START EQU 0F00000h
BLOCK_SIZE EQU 8

It sets the oscillator to External. I am not sure what the fuse should be set to. I also beleve the INTRC needs to be reconfigured for 8 MHz. Can anyone assist me? Thank You.