1: #include <pic18.h>
     2: #include <stdio.h>
     3: #include <string.h>
     4: #include "lcd.h"
     5: // Delay.h is included inside lcd.c
     6: 
     7: #define LCD_LENGTH 16
     8: #define LCD_ROWS 2
     9: 
    10: 
    11: unsigned char global_Pot_Hi;
    12: unsigned char global_Pot_Lo;
    13: unsigned char global_LCD_Buffer[LCD_ROWS][LCD_LENGTH];
    14: /*void AD_init(void)
    15: {
    16:         ADON    = 1;
    17: }
    18: */
    19: // Nicked from H7
    20: void ad_init(void)
    21: {
    22:         // AD Conversion clock
    23:         ADCS0 = 0;
    24:         ADCS1 = 0;
    25:         ADCS2 = 0;
    26: 
    27:         //Select AN0/RA0 for AD source
    28:                 // In this (000) setup, it's only RA0/AN0 that does ad convertion.
    29:         CHS0=0;
    30:         CHS1=0;
    31:         CHS2=0;
    32:         
    33:         //Only AN0 is selected for AD and with Vdd/Vss as limits
    34:         PCFG0=0;
    35:         PCFG1=1;
    36:         PCFG2=1;
    37:         PCFG3=1;
    38:         
    39:         //Result is left justified
    40:         ADFM=0; 
    41:         
    42:         //Fire up for A/D converter module
    43:         ADON=1;
    44: }
    45: 
    46: void rs232_init(void)
    47: {
    48:         SPEN    = 0;    // Serial Port Enable Bit... 0 = disabled
    49:         TRISC6  = 0;
    50:         TRISC7  = 1;
    51:         SYNC    = 0;    // SYNC switches between async(0) and sync(1) mode.
    52:         SPBRG   = 25;
    53:         TXSTA   = 0x24;
    54:         RCSTA   = 0x90;
    55:         SPEN    = 1;
    56: }
    57: 
    58: void interrupt_init(void)
    59: {
    60:         // Assumes that all interrupts default is 0
    61:         PEIE    = 1;
    62:         GIE             = 1;
    63:         RCIE    = 1;
    64: }       
    65: 
    66: void pic18_io_init(void)
    67: {
    68:         TRISA0  = 1;    // analog input
    69:         TRISB1  = 1;    // TRISB1-4 Digital input
    70:         TRISB2  = 1;
    71:         TRISB3  = 1;
    72:         TRISB4  = 1;
    73: }       
    74: 
    75: void interrupt_recieve_handler(void)
    76: {
    77:         // Handle recieve inputs...
    78: }
    79: 
    80: void interrupt interrupt_handler(void)
    81: {
    82:         // Finds out what interrupt have been trigged, and starts the respective function.
    83:         if(RCIF == 1)
    84:         {
    85:                 interrupt_recieve_handler();
    86:                 RCIF = 0;
    87:         }
    88: }               
    89: 
    90: void update_lcd(void)
    91: {       
    92:         char toLCD0[LCD_LENGTH], toLCD1[LCD_LENGTH];
    93:         char B1[LCD_LENGTH];
    94:         char sprintF[LCD_LENGTH];
    95:         lcd_goto(0x00);
    96:         sprintf(toLCD0, "%s", "Ejdesgaard");
    97:         if(RB1)
    98:         {
    99:                 sprintf(B1, "Pwr%s", "True");
   100:         }
   101:         else
   102:         {
   103:                 sprintf(B1, "%s", "False");
   104:         }
   105:         lcd_puts(B1);
   106:         
   107:         lcd_goto(0x40);
   108:         sprintf(sprintF,"%08d%08d", global_Pot_Hi, global_Pot_Lo);
   109:         lcd_puts(sprintF); 
   110:         
   111: }
   112: 
   113: void main()
   114: {
   115: /////////////////////////////////////////////
   116: // Running Init's
   117: 
   118:         // Running init for various components.
   119:         //AD_init();
   120:         ad_init();
   121:         rs232_init();
   122:         pic18_io_init();
   123:         lcd_init(0);
   124: 
   125: /////////////////////////////////////////////
   126: // Main loop
   127: 
   128:         while(1)
   129:         {
   130:         // Checking if A/D convertion is done, and save the data in global_Pot_??
   131:                 if(GODONE==0)
   132:                 {
   133:                         global_Pot_Hi = ADRESH;
   134:                         global_Pot_Lo = ADRESL;
   135:                         GODONE = 1;
   136:                 }
   137:                 
   138:         update_lcd();
   139:         }
   140: }