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1: #include <pic18.h>
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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: #include "lcd.h"
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5 |
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5: #include "Delay.h"
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6 |
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6: // Delay.h is included inside lcd.c
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7 |
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7:
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8 |
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8: #define LCD_LENGTH 16
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9 |
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9: #define LCD_ROWS 2
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10 |
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10: #define SEND_BUFFER 128
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11 |
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11:
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12 |
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12:
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13 |
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13: unsigned char global_Pot_Hi, global_Pot_Lo;
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14 |
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14: unsigned char global_LCD_Buffer[LCD_ROWS][LCD_LENGTH];
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15 |
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15: unsigned char global_serial_send[SEND_BUFFER];
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16 |
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16: unsigned char global_serial_recieve_buffer[LCD_LENGTH];
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17 |
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17: bit global_recieve_done = 0;
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18 |
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18: int global_serial_byte_counter = 0;
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19 |
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19:
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20 |
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20: void serial_recieved(void);
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21 |
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21: void serial_send(void);
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22 |
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22: void update_lcd(void);
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23 |
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23:
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24 |
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24: // Nicked from H7
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25 |
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25: void ad_init(void)
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26 |
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26: {
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27 |
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27: // AD Conversion clock
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28 |
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28: ADCS0 = 0;
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29 |
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29: ADCS1 = 0;
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30 |
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30: ADCS2 = 0;
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31 |
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31:
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32 |
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32: //Select AN0/RA0 for AD source
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33 |
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33: // In this (000) setup, it's only RA0/AN0 that does ad convertion.
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34 |
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34: CHS0=0;
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35 |
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35: CHS1=0;
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36 |
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36: CHS2=0;
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37 |
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37:
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38 |
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38: //Only AN0 is selected for AD and with Vdd/Vss as limits
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39 |
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39: PCFG0=0;
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40 |
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40: PCFG1=1;
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41 |
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41: PCFG2=1;
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42 |
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42: PCFG3=1;
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43 |
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43:
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44 |
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44: //Result is left justified
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45 |
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45: ADFM=0;
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46 |
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46:
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47 |
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47: //Fire up for A/D converter module
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48 |
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48: ADON=1;
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49 |
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49: }
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50 |
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50:
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51 |
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51: void rs232_init(void)
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52 |
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52: {
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53 |
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53: SPEN = 0; // Serial Port Enable Bit... 0 = disabled
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54 |
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54: TRISC6 = 0;
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55 |
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55: TRISC7 = 1;
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56 |
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56:
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57 |
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57: SPBRG = 207; // 1200 baud rate... 25 = 9600
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58 |
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58: // x = (Fosc / (16*[baud rate]) )-1
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59 |
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59: TXSTA = 0x24; // Enables BRGH and TXEN inthe TXSTA register
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60 |
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60: RCSTA = 0x90; // 0x90 enables SPEN and CREN in the RCSTA register
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61 |
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61: }
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62 |
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62:
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63 |
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63: void interrupt_init(void)
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64 |
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64: {
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65 |
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65: // Assumes that all interrupts default is 0
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66 |
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66: PEIE = 1;
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67 |
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67: GIE = 1;
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68 |
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68: RCIE = 1; // Recieve interrupt enable.
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69 |
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69: IPEN = 0; // Nfo interrupt priority
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70 |
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70: TXIE = 0; // Serial interrupt enabled
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71 |
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71: }
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72 |
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72:
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73 |
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73: void pic18_io_init(void)
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74 |
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74: {
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75 |
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75: TRISA0 = 1; // analog input
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76 |
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76: TRISB1 = 1; // TRISB1-4 Digital input
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77 |
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77: TRISB2 = 1;
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78 |
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78: TRISB3 = 1;
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79 |
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79: TRISB4 = 1;
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80 |
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80: }
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81 |
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81:
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82 |
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82: void sms_init(void)
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83 |
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83: {
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84 |
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84: int i = 1;
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85 |
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85: sprintf(global_serial_send,"%s", "at+cpin=8043\r");
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86 |
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86: serial_send();
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87 |
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87: DelaySek(60);
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88 |
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88:
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89 |
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89: update_lcd();
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90 |
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90: DelaySek(5);
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91 |
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91:
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92 |
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92: sprintf(global_serial_send,"%s%s", "at+cmgs=","\"22337617\"\r");
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93 |
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93: serial_send();
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94 |
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94: DelayMs(5000);
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95 |
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95:
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96 |
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96: sprintf(global_serial_send,"%s%d%c","Dette er test nr: ", i, 0x1A);
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97 |
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97: serial_send();
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98 |
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98: DelayMs(5000);
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99 |
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99: i++;
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100 |
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100:
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101 |
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101: }
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102 |
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102:
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103 |
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103: void interrupt interrupt_handler(void)
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104 |
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104: {
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105 |
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105: // Finds out what interrupt have been trigged, and starts the respective function.
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106 |
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106: if(RCIF == 1) // Serial recieve interrupt
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107 |
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107: {
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108 |
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108: serial_recieved();
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109 |
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109: RCIF = 0;
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110 |
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110: }
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111 |
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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:
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114 |
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114:
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115 |
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115: void serial_send(void)
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116 |
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116: {
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117 |
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117: int i;
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118 |
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118: // char tosend[3];
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119 |
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119: char data;
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120 |
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120: // sprintf(tosend,"%s", "at\r");
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121 |
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121: for(i = 0; i < SEND_BUFFER; i++)
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122 |
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122: {
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123 |
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123: data = global_serial_send[i];
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124 |
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124: if( data == '\r')
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125 |
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125: i = (SEND_BUFFER - 1);
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126 |
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126: TXREG = data;
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127 |
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127: while(TRMT==0) ;
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128 |
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128: DelayMs(1000);
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129 |
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129: }
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130 |
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130: }
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131 |
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131:
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132 |
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132: void serial_recieved(void)
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133 |
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133: {
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134 |
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134: char data, saved_data[LCD_LENGTH];
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135 |
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135:
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136 |
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136: data = RCREG;
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137:
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138 |
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138: global_serial_recieve_buffer[global_serial_byte_counter] = data;
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139 |
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139: if(data == '\r')
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140 |
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140: {
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141 |
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141: global_recieve_done = 1;
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142 |
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142: global_serial_byte_counter = 0;
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143 |
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143: }
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144 |
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144: else
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145 |
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145: {
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146 |
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146: global_serial_byte_counter++;
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147 |
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147: }
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148 |
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148:
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149 |
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149: }
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150 |
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150: void update_lcd(void)
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151 |
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151: {
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152 |
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152: if( global_recieve_done == 1 )
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153 |
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153: {
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154 |
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154: lcd_clear();
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155 |
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155: lcd_goto(0x00);
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156 |
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156: lcd_puts(global_serial_recieve_buffer);
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157 |
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157: global_recieve_done = 0;
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158 |
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158: }
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159 |
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159: }
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160 |
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160:
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161: void main()
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162 |
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162: {
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163 |
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163: /////////////////////////////////////////////
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164 |
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164: // Running Init's
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165 |
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165:
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166 |
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166: // Running init for various components.
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167 |
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167: //AD_init();
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168 |
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168: ad_init();
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169 |
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169: rs232_init();
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170 |
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170: pic18_io_init();
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171 |
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171: lcd_init(0);
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172 |
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172: lcd_clear();
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173 |
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173: interrupt_init();
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174 |
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174: sms_init();
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175 |
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175: /////////////////////////////////////////////
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176 |
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176: // Main loop
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177 |
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177:
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178: while(1)
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179: {
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180 |
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180: // Checking if A/D convertion is done, and save the data in global_Pot_??
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181 |
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181: if(GODONE==0)
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182: {
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183 |
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183: global_Pot_Hi = ADRESH;
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184 |
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184: global_Pot_Lo = ADRESL;
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185 |
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185: GODONE = 1;
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186 |
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186: }
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187 |
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187: update_lcd();
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188 |
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188: }
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189 |
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189: }
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