> I think you need INTOSC_IO in the config and set the OSCCON
> right when the program starts. Hope that helps

Hi Bill,

Looking back at a couple of projects I'm pretty sure INTRC_IO is
the internal oscillator

Here's one of my config lines

 __CONFIG  _CONFIG1, _CP_OFF & _INTRC_IO & _MCLR_ON & _WDT_OFF & _PWRTE_OFF=
=20
& _BODEN_OFF & _LVP_OFF
 __CONFIG  _CONFIG2, _IESO_OFF & _FCMEN_OFF

and

         banksel osccon
         movlw   b'01100000'
;                   110        4MHz
;                      -       OSTS
;                       -      freq stable
;                        00    internal RC (set by Config1 FOSC selection)
         movwf   osccon

         btfss   osccon,iofs  ;freq stable
         goto    $-1

I seem to remember having silicon issues in a couple of modules
with INTRC at 8MHz which is why I ran that project at 4MHz

Here are the inc file oscillator options

_EXTRC_CLKOUT     EQU     H'3FFF'
_EXTRC_IO         EQU     H'3FFE'
_INTRC_CLKOUT     EQU     H'3FFD'
_INTRC_IO         EQU     H'3FFC'
_EXTCLK           EQU     H'3FEF'
_HS_OSC           EQU     H'3FEE'
_XT_OSC           EQU     H'3FED'
_LP_OSC           EQU     H'3FEC'

Joe=20



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