Πρώτο πρόγραμμα με τον PIC 18F4550

Αυτό το πρόγραμμα, δείχνει τον αριθμό 0xFF από την PORTD του μικροελεγκτή. Για να λειτουργήσει το πρόγραμμά μας, εισάγουμε το αρχείο main.h στο πρόγραμμα. 

Πρόγραμμα main.h:

#include <18F4550.h>
#device adc=10

#FUSES NOWDT                     //No Watch Dog Timer
#FUSES WDT32768                    //Watch Dog Timer uses 1:128 Postscale
#FUSES HSPLL                     //High Speed Crystal/Resonator with PLL enabled
#FUSES NOPROTECT                 //Code not protected from reading
#FUSES BROWNOUT                //No brownout reset
#FUSES BORV20                    //Brownout reset at 2.0V
#FUSES NOPUT                     //No Power Up Timer
#FUSES NOCPD                     //No EE protection
#FUSES STVREN                    //Stack full/underflow will cause reset
#FUSES NODEBUG                   //No Debug mode for ICD
#FUSES NOLVP                     //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O
#FUSES NOWRT                     //Program memory not write protected
#FUSES NOWRTD                    //Data EEPROM not write protected
#FUSES NOIESO                      //Internal External Switch Over mode enabled
#FUSES NOFCMEN                     //Fail-safe clock monitor enabled
#FUSES NOPBADEN                 ///PORTB pins are configured as analog input channels on RESET
#FUSES NOWRTC                    //configuration not registers write protected
#FUSES NOWRTB                    //Boot block not write protected
#FUSES NOEBTR                    //Memory not protected from table reads
#FUSES NOEBTRB                   //Boot block not protected from table reads
#FUSES NOCPB                     //No Boot Block code protection
#FUSES MCLR                      //Master Clear pin enabled
#FUSES NOLPT1OSC                   //Timer1 configured for low-power operation
#FUSES NOXINST                   //Extended set extension and Indexed Addressing mode disabled (Legacy mode)
#FUSES PLL5                      //Divide By 12(48MHz oscillator input)
#FUSES CPUDIV1                   //System Clock by 2
#FUSES USBDIV                    //USB clock source comes from PLL divide by 2
#FUSES VREGEN                    //USB voltage regulator enabled
#FUSES ICPRT                     //ICPRT enabled
#FUSES WRTB
#FUSES NOICPRT
#FUSES NOLPT1OSC
#FUSES CCP2B3
#FUSES NOCPB
#FUSES NOCPD
#FUSES NOWRTC
#FUSES NOWRTD
#FUSES NOEBTR
#FUSES NOEBTRB            

/* systm clock is 48 MHz */
#use delay(clock=48000000,RESTART_WDT)
/* --- BEGIN: changes required for bootloader ------------------------------ */

/* ------------------------------------------------------------------------- */
/* map reset vector and interrupt vector                                     */
/* 0x000-0x7FF is used by the bootloader. The bootloader maps the original   */
/* reset vecotr (0x000) to 0x800 and the reset vector (0x008) to 0x800.      */
/* ------------------------------------------------------------------------- */
#build (reset=0x800, interrupt=0x808)

/* ------------------------------------------------------------------------- */
/* reserve boot block area                                                   */
/* This memory range is used by the bootloader, so the application must not  */
/* use this area.                                                            */
/* ------------------------------------------------------------------------- */
#org 0, 0x7FF {}

/* --- END: changes required for bootloader -------------------------------- */

Κυρίως πρόγραμμα:

#include <main.h>
#byte PORTD = 0xF83

void main ()
{
set_tris_d(0x00);
while (TRUE)
{
PORTD = 0xFF;
}
}