Hi, Glenn

a '2520 config header, just for example.

Code:
'*****************************************************************************
'*****************************************************************************
'Config processeur
'*****************************************************************************
'



@   __CONFIG    _CONFIG1H, _IESO_OFF_1H & _OSC_XT_1H & _FCMEN_OFF_1H
@   __CONFIG	_CONFIG2L, _BOREN_OFF_2L & _PWRT_ON_2L
@   __CONFIG    _CONFIG2H, _WDT_OFF_2H & _WDTPS_128_2H



@   __CONFIG    _CONFIG3H, _MCLRE_ON_3H & _LPT1OSC_OFF_3H & _PBADEN_OFF_3H & _CCP2MX_PORTBE_3H
@   __CONFIG    _CONFIG4L, _STVREN_OFF_4L & _LVP_OFF_4L & _DEBUG_OFF_4L & _XINST_OFF_4L



@   __CONFIG    _CONFIG5L, _CP0_OFF_5L & _CP1_OFF_5L
@   __CONFIG    _CONFIG5H, _CPB_OFF_5H & _CPD_OFF_5H
@   __CONFIG    _CONFIG6L, _WRT0_OFF_6L & _WRT1_OFF_6L
@   __CONFIG    _CONFIG6H, _WRTB_OFF_6H & _WRTC_OFF_6H & _WRTD_OFF_6H 
@   __CONFIG    _CONFIG7L, _EBTR0_OFF_7L & _EBTR1_OFF_7L
@   __CONFIG    _CONFIG7H, _EBTRB_OFF_7H 

'*****************************************************************************
'Config TIMERs

OSCCON  = %01100000

'*****************************************************************************
'Config TIMERs

T0CON = %00000010	' 16Bits 1/8 prescaler, Horloge Système, OFF
					' Utilisé pour détection sous regime ou arret
					
T1CON = %00000000	'1/1 prescaler, Quartz 32,768
' *** Géré par Elapsed Timer ***

T3CON = %01110001	' CCP SUR TMR3,1/8 prescaler,Horloge système,ON
					' Mesure de la vitesse
'*****************************************************************************
'Config CCP1 arret CCP2

CCP1CON = %00000101	' Capture sur front montant 

CCP2CON = %00000000	'inhibition module CCP2

'*****************************************************************************
'Inhibition SSP

SSPCON1.5 = 0

'*****************************************************************************
'Inhibition Comparateurs

CMCON = 7

'*****************************************************************************
'Inhibition Reference interne

CVRCON = 0

'*****************************************************************************
'Config Interruptions

INTCON  = %10000000
INTCON2 = %11110000
INTCON3 = %00000000

PIE1    = %00000100
PIE2    = %00000000

IPR1    = %00000001
IPR2	= %00000000

RCON	= %10000000

'*****************************************************************************
'Config ADC
'*****************************************************************************

ADCON0 = %11000000		' 
ADCON1 = %00011100 		' A0 > A2 Vref+ A3, Vref- = Vss 
ADCON2 = %10100110		' Right Just., 8Tad, clock /64

'*****************************************************************************
'*****************************************************************************
'Config et Prepositionnement E/S
'*****************************************************************************

PORTA	= %00110000
PORTB 	= %00010000
PORTC	= %00001000
'PORTD	= 0
'PORTE	= 0

TRISA 	= %00011111
TRISB	= %00000110
TRISC	= %00000111
'TRISD	= %00000000
'TRISE	= %00000000
'
Powerful devices need to configure more registers ... that's it !!!

Alain