Pic18f2320

[mpgmike]

The following is used on a PIC16F1824. Check your Data Sheet to double check the Special Function Registers as applicable to your chip:

; --- *** Timer 2 SFRs, Used for PWM Period *** --------------------------------
T2CON       =   %01111011               ;.2 = 1/0
PR2         =   %11111111
PIE1.1      =   0                       ;TMR2IE


; --- *** CCP1 PWM SFRs *** ----------------------------------------------------
CCP1CON     =   %00001100


DutyCycle   VAR WORD
CCPR1L      =   DutyCycle.LOWBYTE
;HIGHBYTE comes from bits in CCP1CON


;Fill in other pertinent set-up data.


Label:
    PIR1.1 = 0                      ;TMR2IF
    PIE1.1 = 1                      ;TMR2IE
    T2CON = %01111111               ;Turns TMR2 ON
do
    loop while PIR1.1 = 0           ;TMR2IF
    PIR1.1 = 0                      ;TMR2IF
    DutyCycle = ;desired PWM

Hope this helps.