trunk/Embedded/main.lst

     1: #include <pic18.h>
     2: #include <stdio.h>
     3: #include <htc.h>
     4: #include <string.h>
     5: 
     6: #include "lcd.h"
     7: #include "Delay.h"
     8: // Delay.h is included inside lcd.c
     9: 
    10: #define LCD_LENGTH 16
    11: #define LCD_ROWS 2
    12: #define SEND_BUFFER 128
    13: #define PWRFAIL RB1
    14: #define FIREDET RB2
    15: #define FEEDING RB3
    16: #define EMPTYTANK RB4
    17: 
    18: 
    19: unsigned char global_Pot_Hi, global_Pot_Lo;
    20: unsigned char global_LCD_Buffer[LCD_ROWS][LCD_LENGTH];
    21: unsigned char global_serial_send[SEND_BUFFER], global_serial_recieve_buffer[SEND_BUFFER];
    22: bit global_recieve_done = 0, global_interval_changed = 0;
    23: unsigned int global_serial_byte_counter = 0, global_sms_counter = 1, global_time_counter = 0;
    24: unsigned int global_emergency_counter = 600, global_time_interval = 3600;
    25: unsigned char global_temp = 0;
    26: 
    27: unsigned char cell_nr[15] = ""; // = "21681784";
    28: 
    29: 
    30: __EEPROM_DATA( 60, 0, 1, 8, '2', '1', '6', '8');
    31: __EEPROM_DATA( '1', '7', '8', '4',0,0,0,0);
    32: 
    33: void serial_recieved(void);
    34: void serial_send(void);
    35: void update_lcd(void);
    36: void convertTemp(void);
    37: void timer1_interrupt(void);
    38: 
    39: // Nicked from H7
    40: void ad_init(void)
    41: {
    42:         // AD Conversion clock
    43:         ADCS0 = 0;
    44:         ADCS1 = 0;
    45:         ADCS2 = 0;
    46: 
    47:         //Select AN0/RA0 for AD source
    48:                 // In this (000) setup, it's only RA0/AN0 that does ad convertion.
    49:         CHS0=0;
    50:         CHS1=0;
    51:         CHS2=0;
    52:         
    53:         //Only AN0 is selected for AD and with Vdd/Vss as limits
    54:         PCFG0=0;
    55:         PCFG1=1;
    56:         PCFG2=1;
    57:         PCFG3=1;
    58:         
    59:         //Result is right justified
    60:         ADFM=1; 
    61:         
    62:         //Fire up for A/D converter module
    63:         ADON=1;
    64: }
    65: 
    66: void rs232_init(void)
    67: {
    68:         SPEN    = 0;    // Serial Port Enable Bit... 0 = disabled
    69:         TRISC6  = 0;    
    70:         TRISC7  = 1;
    71: 
    72:         SPBRG   = 207;  // 1200 baud rate... 25 = 9600
    73:                                         // x = (Fosc / (16*[baud rate]) )-1
    74:         TXSTA   = 0x24; // Enables BRGH and TXEN inthe TXSTA register
    75:         RCSTA   = 0x90; // 0x90 enables SPEN and CREN in the RCSTA register
    76: }
    77: 
    78: void interrupt_init(void)
    79: {
    80:         // Assumes that all interrupts default is 0
    81:         PEIE    = 1;
    82:         GIE             = 1;
    83:         RCIE    = 1;    // Recieve interrupt enable.
    84:         IPEN    = 0;    // Nfo interrupt priority
    85:         TXIE    = 0;    // Serial interrupt enabled
    86:         TMR1IE  = 1;    // Enables timer 1
    87: }       
    88: 
    89: void timer_init(void)
    90: {
    91:         TMR1CS = 1; //use external clock
    92:         
    93:         T1CKPS1 = 1; //1:8 prescale
    94:         T1CKPS0 = 1;
    95:         
    96:         TMR1H = 0xEF;
    97:         TMR1L = 0xFF;
    98: 
    99:         T1OSCEN = 1; //enable oscillator circuit        
   100:         RD16 = 0; //normal 8 bit writes
   101:         TMR1ON = 1;
   102: }
   103: 
   104: void pic18_io_init(void)
   105: {
   106:         TRISA0  = 1;    // analog input
   107:         TRISA1  = 0;    // Output
   108:         TRISB1  = 1;    // TRISB1-4 Digital input
   109:         TRISB2  = 1;
   110:         TRISB3  = 1;
   111:         TRISB4  = 1;
   112: }       
   113: 
   114: void sms_init(void)
   115: {
   116:         int i;
   117: 
   118:         sprintf(global_serial_send,"at+cgsn\r");
   119:         serial_send();
   120:         DelaySek(1);
   121:         while(!global_recieve_done) ;
   122: 
   123: 
   124:         sprintf(global_serial_send,"%s", "at+cpin=8043\r");
   125:         serial_send();
   126:         DelaySek(30);
   127:         
   128:         update_lcd();
   129:         DelaySek(5);
   130: }
   131: 
   132: 
   133: void interrupt interrupt_handler(void)
   134: {
   135:         // Finds out what interrupt have been trigged, and starts the respective function.
   136:         if(RCIF == 1)                   // Serial recieve interrupt
   137:         {
   138:                 serial_recieved();
   139:                 RCIF = 0;
   140:         }
   141:         
   142:         if(TMR1IF == 1)                 // timer1 interrupt trigger.
   143:         {
   144:                 timer1_interrupt();
   145:                 TMR1IF = 0;
   146:         }
   147: }               
   148: 
   149: 
   150: void serial_send(void)
   151: {
   152:         int i;
   153:         char data_byte;
   154:         for(i = 0; i < SEND_BUFFER; i++)
   155:         {
   156:                 data_byte = global_serial_send[i];
   157:                 if( data_byte == '\r')
   158:                         i = (SEND_BUFFER - 1);
   159:                 TXREG = data_byte;
   160:                 while(TRMT==0) ;
   161:                 DelayMs(10);
   162:         }
   163:         DelayMs(250);
   164:         DelayMs(250);
   165: }       
   166: 
   167: void serial_recieved(void)
   168: {
   169:         char data_byte, saved_data[LCD_LENGTH];
   170:         
   171:         data_byte = RCREG;
   172:         
   173:         global_serial_recieve_buffer[global_serial_byte_counter] = data_byte;
   174:         if(data_byte == '\r')
   175:         {
   176:                 global_recieve_done = 1;
   177:                 global_serial_byte_counter = 0;
   178:         }       
   179:         else
   180:         {
   181:                 global_serial_byte_counter++;
   182:         }
   183:         
   184: }
   185: 
   186: void timer1_interrupt(void)
   187: {
   188:         TMR1H = 0xEF;
   189:         TMR1L = 0xFF;
   190:         global_time_counter++;
   191:         global_emergency_counter++;
   192:         RA1 = !RA1;
   193: }
   194: 
   195: void update_lcd(void)
   196: {
   197:         if( global_recieve_done == 1 )
   198:         {
   199:                 lcd_clear();
   200:                 lcd_goto(0x00);
   201:                 lcd_puts(global_serial_recieve_buffer);
   202:                 global_recieve_done = 0;
   203:         }
   204: }
   205:         
   206: void send_update(void)
   207: {
   208:         sprintf(global_serial_send, "at+cmgs=\"%s\"\r", cell_nr);
   209:         serial_send();
   210:         sprintf(global_serial_send, "%d:%d:%d:%d:%d:%d%c", global_sms_counter, global_temp, FIREDET, EMPTYTANK, FEEDING, PWRFAIL, 0x1A);
   211:         lcd_goto(40);
   212:         lcd_puts(global_serial_send);
   213:         serial_send();
   214:         DelayMs(250);
   215:         global_sms_counter++;
   216: }       
   217: 
   218: void convertTemp()
   219: 
   220: {
   221:         short adVal;
   222:         adVal = (global_Pot_Hi << 8) | global_Pot_Lo;
   223:         if( adVal >=840 )
   224:                 global_temp = 100;
   225:         else
   226:                 global_temp = (adVal / 8.3886);
   227: }
   228: 
   229: 
   230: 
   231: void eeprom_writer(void)
   232: {
   233:         char len,i;
   234:         
   235:         if( global_interval_changed )
   236:         {
   237:                 len = strlen(cell_nr);
   238:                 eeprom_write(0, (global_time_interval/60));
   239:                 eeprom_write(1, global_sms_counter>>8);
   240:                 eeprom_write(2, global_sms_counter);
   241:                 eeprom_write(3, len);
   242:                 
   243:                 for (i=0; i<len; ++i)
   244:                 {
   245:                         eeprom_write(i+4, cell_nr[i] );
   246:                 }
   247:                 
   248:                 global_interval_changed = 0;
   249:         }
   250: }
   251: 
   252: void eeprom_reader(void)
   253: {
   254:         char len,i;
   255:         
   256:         global_time_interval = eeprom_read(0);
   257:         global_time_interval *= 60;
   258:         global_sms_counter = (eeprom_read(1)<<8) | eeprom_read(2);
   259:         len = eeprom_read(3);
   260:         
   261:         for (i=0; i<len; ++i)
   262:         {
   263:                 cell_nr[i] = eeprom_read(i+4);
   264:         }
   265:         
   266:         cell_nr[i] = 0; //zero terminated!
   267: }       
   268: 
   269: 
   270: void main()
   271: {
   272: /////////////////////////////////////////////
   273: // Running Init's
   274: 
   275:         // Running init for various components.
   276:         pic18_io_init();
   277:         rs232_init();
   278:         ad_init();
   279:         lcd_init(0);
   280:         interrupt_init();
   281:         sms_init();
   282:         //eeprom_init();
   283:         timer_init();
   284:         eeprom_reader();
   285: /////////////////////////////////////////////
   286: // Main loop
   287: send_update();
   288:         while(1)
   289:         {
   290:                 if( (global_temp >= 90 || PWRFAIL == 1 || FIREDET == 0 || FEEDING == 1 || EMPTYTANK == 1) && global_emergency_counter >= 600 )
   291:                 {
   292:                         send_update();
   293:                         global_emergency_counter = 0;
   294:                 }
   295:                 
   296:                 if(global_time_counter >= 3600)
   297:                 {
   298:                         send_update();
   299:                         global_time_counter = 0;
   300:                 }
   301:                 // to avoid buffer overrun.
   302:                 if( global_emergency_counter > 7200 )
   303:                         global_emergency_counter = 600;
   304: 
   305:                 // Checking if A/D convertion is done, and save the data in global_Pot_??
   306:                 if(GODONE==0)
   307:                 {
   308:                         global_Pot_Hi = ADRESH;
   309:                         global_Pot_Lo = ADRESL;
   310:                         convertTemp();
   311:                         
   312:                         GODONE = 1;
   313:                 }
   314:                 
   315:                 update_lcd();
   316:         }
   317: 
   318: }
1	hedin	82	1: #include <pic18.h>
2			2: #include <stdio.h>
3	hedin	148	3: #include <htc.h>
4			4: #include <string.h>
5			5:
6			6: #include "lcd.h"
7			7: #include "Delay.h"
8			8: // Delay.h is included inside lcd.c
9			9:
10			10: #define LCD_LENGTH 16
11			11: #define LCD_ROWS 2
12			12: #define SEND_BUFFER 128
13			13: #define PWRFAIL RB1
14			14: #define FIREDET RB2
15			15: #define FEEDING RB3
16			16: #define EMPTYTANK RB4
17			17:
18			18:
19			19: unsigned char global_Pot_Hi, global_Pot_Lo;
20			20: unsigned char global_LCD_Buffer[LCD_ROWS][LCD_LENGTH];
21			21: unsigned char global_serial_send[SEND_BUFFER], global_serial_recieve_buffer[SEND_BUFFER];
22			22: bit global_recieve_done = 0, global_interval_changed = 0;
23			23: unsigned int global_serial_byte_counter = 0, global_sms_counter = 1, global_time_counter = 0;
24			24: unsigned int global_emergency_counter = 600, global_time_interval = 3600;
25			25: unsigned char global_temp = 0;
26			26:
27			27: unsigned char cell_nr[15] = ""; // = "21681784";
28			28:
29			29:
30			30: __EEPROM_DATA( 60, 0, 1, 8, '2', '1', '6', '8');
31			31: __EEPROM_DATA( '1', '7', '8', '4',0,0,0,0);
32			32:
33			33: void serial_recieved(void);
34			34: void serial_send(void);
35			35: void update_lcd(void);
36			36: void convertTemp(void);
37			37: void timer1_interrupt(void);
38			38:
39			39: // Nicked from H7
40			40: void ad_init(void)
41			41: {
42			42: // AD Conversion clock
43			43: ADCS0 = 0;
44			44: ADCS1 = 0;
45			45: ADCS2 = 0;
46			46:
47			47: //Select AN0/RA0 for AD source
48			48: // In this (000) setup, it's only RA0/AN0 that does ad convertion.
49			49: CHS0=0;
50			50: CHS1=0;
51			51: CHS2=0;
52			52:
53			53: //Only AN0 is selected for AD and with Vdd/Vss as limits
54			54: PCFG0=0;
55			55: PCFG1=1;
56			56: PCFG2=1;
57			57: PCFG3=1;
58			58:
59			59: //Result is right justified
60			60: ADFM=1;
61			61:
62			62: //Fire up for A/D converter module
63			63: ADON=1;
64			64: }
65			65:
66			66: void rs232_init(void)
67			67: {
68			68: SPEN = 0; // Serial Port Enable Bit... 0 = disabled
69			69: TRISC6 = 0;
70			70: TRISC7 = 1;
71			71:
72			72: SPBRG = 207; // 1200 baud rate... 25 = 9600
73			73: // x = (Fosc / (16*[baud rate]) )-1
74			74: TXSTA = 0x24; // Enables BRGH and TXEN inthe TXSTA register
75			75: RCSTA = 0x90; // 0x90 enables SPEN and CREN in the RCSTA register
76			76: }
77			77:
78			78: void interrupt_init(void)
79			79: {
80			80: // Assumes that all interrupts default is 0
81			81: PEIE = 1;
82			82: GIE = 1;
83			83: RCIE = 1; // Recieve interrupt enable.
84			84: IPEN = 0; // Nfo interrupt priority
85			85: TXIE = 0; // Serial interrupt enabled
86			86: TMR1IE = 1; // Enables timer 1
87			87: }
88			88:
89			89: void timer_init(void)
90			90: {
91			91: TMR1CS = 1; //use external clock
92			92:
93			93: T1CKPS1 = 1; //1:8 prescale
94			94: T1CKPS0 = 1;
95	hedin	139	95:
96	hedin	148	96: TMR1H = 0xEF;
97			97: TMR1L = 0xFF;
98			98:
99			99: T1OSCEN = 1; //enable oscillator circuit
100			100: RD16 = 0; //normal 8 bit writes
101			101: TMR1ON = 1;
102			102: }
103			103:
104			104: void pic18_io_init(void)
105			105: {
106			106: TRISA0 = 1; // analog input
107			107: TRISA1 = 0; // Output
108			108: TRISB1 = 1; // TRISB1-4 Digital input
109			109: TRISB2 = 1;
110			110: TRISB3 = 1;
111			111: TRISB4 = 1;
112			112: }
113	hedin	139	113:
114	hedin	148	114: void sms_init(void)
115			115: {
116			116: int i;
117			117:
118			118: sprintf(global_serial_send,"at+cgsn\r");
119			119: serial_send();
120			120: DelaySek(1);
121			121: while(!global_recieve_done) ;
122			122:
123			123:
124			124: sprintf(global_serial_send,"%s", "at+cpin=8043\r");
125			125: serial_send();
126			126: DelaySek(30);
127			127:
128			128: update_lcd();
129			129: DelaySek(5);
130			130: }
131	hedin	137	131:
132	hedin	148	132:
133			133: void interrupt interrupt_handler(void)
134			134: {
135			135: // Finds out what interrupt have been trigged, and starts the respective function.
136			136: if(RCIF == 1) // Serial recieve interrupt
137			137: {
138			138: serial_recieved();
139			139: RCIF = 0;
140			140: }
141			141:
142			142: if(TMR1IF == 1) // timer1 interrupt trigger.
143			143: {
144			144: timer1_interrupt();
145			145: TMR1IF = 0;
146			146: }
147			147: }
148			148:
149			149:
150			150: void serial_send(void)
151	hedin	139	151: {
152	hedin	148	152: int i;
153			153: char data_byte;
154			154: for(i = 0; i < SEND_BUFFER; i++)
155			155: {
156			156: data_byte = global_serial_send[i];
157			157: if( data_byte == '\r')
158			158: i = (SEND_BUFFER - 1);
159			159: TXREG = data_byte;
160			160: while(TRMT==0) ;
161			161: DelayMs(10);
162			162: }
163			163: DelayMs(250);
164			164: DelayMs(250);
165			165: }
166			166:
167			167: void serial_recieved(void)
168			168: {
169			169: char data_byte, saved_data[LCD_LENGTH];
170			170:
171			171: data_byte = RCREG;
172			172:
173			173: global_serial_recieve_buffer[global_serial_byte_counter] = data_byte;
174			174: if(data_byte == '\r')
175			175: {
176			176: global_recieve_done = 1;
177			177: global_serial_byte_counter = 0;
178			178: }
179			179: else
180			180: {
181			181: global_serial_byte_counter++;
182			182: }
183			183:
184			184: }
185			185:
186			186: void timer1_interrupt(void)
187			187: {
188			188: TMR1H = 0xEF;
189			189: TMR1L = 0xFF;
190			190: global_time_counter++;
191			191: global_emergency_counter++;
192			192: RA1 = !RA1;
193			193: }
194			194:
195			195: void update_lcd(void)
196			196: {
197			197: if( global_recieve_done == 1 )
198			198: {
199			199: lcd_clear();
200			200: lcd_goto(0x00);
201			201: lcd_puts(global_serial_recieve_buffer);
202			202: global_recieve_done = 0;
203			203: }
204			204: }
205			205:
206			206: void send_update(void)
207			207: {
208			208: sprintf(global_serial_send, "at+cmgs=\"%s\"\r", cell_nr);
209			209: serial_send();
210			210: sprintf(global_serial_send, "%d:%d:%d:%d:%d:%d%c", global_sms_counter, global_temp, FIREDET, EMPTYTANK, FEEDING, PWRFAIL, 0x1A);
211			211: lcd_goto(40);
212			212: lcd_puts(global_serial_send);
213			213: serial_send();
214			214: DelayMs(250);
215			215: global_sms_counter++;
216			216: }
217			217:
218			218: void convertTemp()
219			219:
220			220: {
221			221: short adVal;
222			222: adVal = (global_Pot_Hi << 8) \| global_Pot_Lo;
223			223: if( adVal >=840 )
224			224: global_temp = 100;
225			225: else
226			226: global_temp = (adVal / 8.3886);
227			227: }
228			228:
229			229:
230			230:
231			231: void eeprom_writer(void)
232			232: {
233			233: char len,i;
234			234:
235			235: if( global_interval_changed )
236			236: {
237			237: len = strlen(cell_nr);
238			238: eeprom_write(0, (global_time_interval/60));
239			239: eeprom_write(1, global_sms_counter>>8);
240			240: eeprom_write(2, global_sms_counter);
241			241: eeprom_write(3, len);
242			242:
243			243: for (i=0; i<len; ++i)
244			244: {
245			245: eeprom_write(i+4, cell_nr[i] );
246			246: }
247			247:
248			248: global_interval_changed = 0;
249			249: }
250			250: }
251			251:
252			252: void eeprom_reader(void)
253			253: {
254			254: char len,i;
255			255:
256			256: global_time_interval = eeprom_read(0);
257			257: global_time_interval *= 60;
258			258: global_sms_counter = (eeprom_read(1)<<8) \| eeprom_read(2);
259			259: len = eeprom_read(3);
260			260:
261			261: for (i=0; i<len; ++i)
262			262: {
263			263: cell_nr[i] = eeprom_read(i+4);
264			264: }
265			265:
266			266: cell_nr[i] = 0; //zero terminated!
267			267: }
268			268:
269			269:
270			270: void main()
271			271: {
272			272: /////////////////////////////////////////////
273			273: // Running Init's
274			274:
275			275: // Running init for various components.
276			276: pic18_io_init();
277			277: rs232_init();
278			278: ad_init();
279			279: lcd_init(0);
280			280: interrupt_init();
281			281: sms_init();
282			282: //eeprom_init();
283			283: timer_init();
284			284: eeprom_reader();
285			285: /////////////////////////////////////////////
286			286: // Main loop
287			287: send_update();
288			288: while(1)
289			289: {
290			290: if( (global_temp >= 90 \|\| PWRFAIL == 1 \|\| FIREDET == 0 \|\| FEEDING == 1 \|\| EMPTYTANK == 1) && global_emergency_counter >= 600 )
291			291: {
292			292: send_update();
293			293: global_emergency_counter = 0;
294			294: }
295			295:
296			296: if(global_time_counter >= 3600)
297			297: {
298			298: send_update();
299			299: global_time_counter = 0;
300			300: }
301			301: // to avoid buffer overrun.
302			302: if( global_emergency_counter > 7200 )
303			303: global_emergency_counter = 600;
304			304:
305			305: // Checking if A/D convertion is done, and save the data in global_Pot_??
306			306: if(GODONE==0)
307			307: {
308			308: global_Pot_Hi = ADRESH;
309			309: global_Pot_Lo = ADRESL;
310			310: convertTemp();
311			311:
312			312: GODONE = 1;
313			313: }
314			314:
315			315: update_lcd();
316			316: }
317			317:
318			318: }