1: #include <pic18.h>
     2: #include <stdio.h>
     3: #include <string.h>
     4: 
     5: #include "lcd.h"
     6: 
     7: 
     8: void rs232_init(void)
     9: {
    10:         SPEN    = 0;    // Serial Port Enable Bit... 0 = disabled
    11:         TRISC6  = 0;
    12:         TRISC7  = 1;
    13:         SYNC    = 0; // SYNC switches between async(0) and sync(1) mode.
    14:         SPBRG   = 25;
    15:         TXSTA   = 0x24;
    16:         RCSTA   = 0x90;
    17:         SPEN    = 1;
    18: }
    19: 
    20: void interrupt_init(void)
    21: {
    22:         // Assumes that all interrupts default is 0
    23:         PEIE    = 1;
    24:         GIE             = 1;
    25:         RCIE    = 1;
    26: }       
    27: 
    28: void pic18_io_init(void)
    29: {
    30:         TRISA0  = 1;
    31:         TRISB1  = 1;
    32:         TRISB2  = 1;
    33:         TRISB3  = 1;
    34:         TRISB4  = 1;
    35: }       
    36: 
    37: void interrupt_recieve_handler(void)
    38: {
    39:         // Handle recieve inputs...
    40: }
    41: 
    42: void interrupt interrupt_handler(void)
    43: {
    44:         if(RCIF == 1)
    45:         {
    46:                 interrupt_recieve_handler();
    47:                 RCIF = 0;
    48:         }
    49: }               
    50:         
    51: 
    52: void main()
    53: {
    54:         rs232_init();
    55:         pic18_io_init();
    56: }