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