| 1 |
1: #include <pic18.h>
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| 2 |
2: #include <stdio.h>
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| 3 |
3: #include <string.h>
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| 4 |
4: #include "lcd.h"
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| 5 |
5: #include "Delay.h"
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| 6 |
6: // Delay.h is included inside lcd.c
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| 7 |
7:
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| 8 |
8: #define LCD_LENGTH 16
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| 9 |
9: #define LCD_ROWS 2
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| 10 |
10: #define SEND_BUFFER 128
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| 11 |
11:
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| 12 |
12:
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| 13 |
13: unsigned char global_Pot_Hi, global_Pot_Lo;
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| 14 |
14: unsigned char global_LCD_Buffer[LCD_ROWS][LCD_LENGTH];
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| 15 |
15: unsigned char global_serial_send[SEND_BUFFER];
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| 16 |
16: unsigned char global_serial_recieve_buffer[LCD_LENGTH];
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| 17 |
17: bit global_recieve_done = 0;
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| 18 |
18: int global_serial_byte_counter = 0;
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| 19 |
19:
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| 20 |
20: void serial_recieved(void);
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| 21 |
21: void serial_send(void);
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| 22 |
22: void update_lcd(void);
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| 23 |
23:
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| 24 |
24: // Nicked from H7
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| 25 |
25: void ad_init(void)
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| 26 |
26: {
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| 27 |
27: // AD Conversion clock
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| 28 |
28: ADCS0 = 0;
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| 29 |
29: ADCS1 = 0;
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| 30 |
30: ADCS2 = 0;
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| 31 |
31:
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| 32 |
32: //Select AN0/RA0 for AD source
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| 33 |
33: // In this (000) setup, it's only RA0/AN0 that does ad convertion.
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| 34 |
34: CHS0=0;
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| 35 |
35: CHS1=0;
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| 36 |
36: CHS2=0;
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| 37 |
37:
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| 38 |
38: //Only AN0 is selected for AD and with Vdd/Vss as limits
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| 39 |
39: PCFG0=0;
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| 40 |
40: PCFG1=1;
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| 41 |
41: PCFG2=1;
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| 42 |
42: PCFG3=1;
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| 43 |
43:
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| 44 |
44: //Result is left justified
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| 45 |
45: ADFM=0;
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| 46 |
46:
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| 47 |
47: //Fire up for A/D converter module
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| 48 |
48: ADON=1;
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| 49 |
49: }
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| 50 |
50:
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| 51 |
51: void rs232_init(void)
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| 52 |
52: {
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| 53 |
53: SPEN = 0; // Serial Port Enable Bit... 0 = disabled
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| 54 |
54: TRISC6 = 0;
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| 55 |
55: TRISC7 = 1;
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| 56 |
56:
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| 57 |
57: SPBRG = 207; // 1200 baud rate... 25 = 9600
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| 58 |
58: // x = (Fosc / (16*[baud rate]) )-1
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| 59 |
59: TXSTA = 0x24; // Enables BRGH and TXEN inthe TXSTA register
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| 60 |
60: RCSTA = 0x90; // 0x90 enables SPEN and CREN in the RCSTA register
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| 61 |
61: }
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| 62 |
62:
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| 63 |
63: void interrupt_init(void)
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| 64 |
64: {
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| 65 |
65: // Assumes that all interrupts default is 0
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| 66 |
66: PEIE = 1;
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| 67 |
67: GIE = 1;
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| 68 |
68: RCIE = 1; // Recieve interrupt enable.
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| 69 |
69: IPEN = 0; // Nfo interrupt priority
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| 70 |
70: TXIE = 0; // Serial interrupt enabled
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| 71 |
71: }
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| 72 |
72:
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| 73 |
73: void pic18_io_init(void)
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| 74 |
74: {
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| 75 |
75: TRISA0 = 1; // analog input
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| 76 |
76: TRISB1 = 1; // TRISB1-4 Digital input
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| 77 |
77: TRISB2 = 1;
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| 78 |
78: TRISB3 = 1;
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| 79 |
79: TRISB4 = 1;
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| 80 |
80: }
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| 81 |
81:
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| 82 |
82: void sms_init(void)
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| 83 |
83: {
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| 84 |
84: int i = 1;
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| 85 |
85: sprintf(global_serial_send,"%s", "at+cpin=8043\r");
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| 86 |
86: serial_send();
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| 87 |
87: DelaySek(60);
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| 88 |
88:
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| 89 |
89: update_lcd();
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| 90 |
90: DelaySek(5);
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| 91 |
91:
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| 92 |
92: sprintf(global_serial_send,"%s%s", "at+cmgs=","\"22337617\"\r");
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| 93 |
93: serial_send();
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| 94 |
94: DelayMs(5000);
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| 95 |
95:
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| 96 |
96: sprintf(global_serial_send,"%s%d%c","Dette er test nr: ", i, 0x1A);
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| 97 |
97: serial_send();
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| 98 |
98: DelayMs(5000);
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| 99 |
99: i++;
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| 100 |
100:
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| 101 |
101: }
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| 102 |
102:
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| 103 |
103: void interrupt interrupt_handler(void)
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| 104 |
104: {
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| 105 |
105: // Finds out what interrupt have been trigged, and starts the respective function.
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| 106 |
106: if(RCIF == 1) // Serial recieve interrupt
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| 107 |
107: {
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| 108 |
108: serial_recieved();
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| 109 |
109: RCIF = 0;
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| 110 |
110: }
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| 111 |
111: }
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| 112 |
112:
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| 113 |
113:
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| 114 |
114:
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| 115 |
115: void serial_send(void)
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| 116 |
116: {
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| 117 |
117: int i;
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| 118 |
118: // char tosend[3];
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| 119 |
119: char data;
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| 120 |
120: // sprintf(tosend,"%s", "at\r");
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| 121 |
121: for(i = 0; i < SEND_BUFFER; i++)
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| 122 |
122: {
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| 123 |
123: data = global_serial_send[i];
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| 124 |
124: if( data == '\r')
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| 125 |
125: i = (SEND_BUFFER - 1);
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| 126 |
126: TXREG = data;
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| 127 |
127: while(TRMT==0) ;
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| 128 |
128: DelayMs(1000);
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| 129 |
129: }
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| 130 |
130: }
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| 131 |
131:
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| 132 |
132: void serial_recieved(void)
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| 133 |
133: {
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| 134 |
134: char data, saved_data[LCD_LENGTH];
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| 135 |
135:
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| 136 |
136: data = RCREG;
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| 137 |
137:
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| 138 |
138: global_serial_recieve_buffer[global_serial_byte_counter] = data;
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| 139 |
139: if(data == '\r')
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| 140 |
140: {
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| 141 |
141: global_recieve_done = 1;
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| 142 |
142: global_serial_byte_counter = 0;
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| 143 |
143: }
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| 144 |
144: else
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| 145 |
145: {
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| 146 |
146: global_serial_byte_counter++;
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| 147 |
147: }
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| 148 |
148:
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| 149 |
149: }
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| 150 |
150: void update_lcd(void)
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| 151 |
151: {
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| 152 |
152: if( global_recieve_done == 1 )
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| 153 |
153: {
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| 154 |
154: lcd_clear();
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| 155 |
155: lcd_goto(0x00);
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| 156 |
156: lcd_puts(global_serial_recieve_buffer);
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| 157 |
157: global_recieve_done = 0;
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| 158 |
158: }
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| 159 |
159: }
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| 160 |
160:
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| 161 |
161: void main()
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| 162 |
162: {
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| 163 |
163: /////////////////////////////////////////////
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| 164 |
164: // Running Init's
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| 165 |
165:
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| 166 |
166: // Running init for various components.
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| 167 |
167: //AD_init();
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| 168 |
168: ad_init();
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| 169 |
169: rs232_init();
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| 170 |
170: pic18_io_init();
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| 171 |
171: lcd_init(0);
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| 172 |
172: lcd_clear();
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| 173 |
173: interrupt_init();
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| 174 |
174: sms_init();
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| 175 |
175: /////////////////////////////////////////////
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| 176 |
176: // Main loop
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| 177 |
177:
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| 178 |
178: while(1)
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| 179 |
179: {
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| 180 |
180: // Checking if A/D convertion is done, and save the data in global_Pot_??
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| 181 |
181: if(GODONE==0)
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| 182 |
182: {
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| 183 |
183: global_Pot_Hi = ADRESH;
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| 184 |
184: global_Pot_Lo = ADRESL;
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| 185 |
185: GODONE = 1;
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| 186 |
186: }
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| 187 |
187: update_lcd();
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| 188 |
188: }
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| 189 |
189: }
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