--- trunk/Embedded/main.lst	2007/11/30 16:07:03	112
+++ trunk/Embedded/main.lst	2007/12/04 19:07:00	150
@@ -1,140 +1,386 @@
      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
+     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: 
-    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;
+    10: #define LCD_LENGTH 16
+    11: #define LCD_ROWS 2
+    12: #define 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[BUFFER], global_serial_recieve_buffer[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:         //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: }
+    27: unsigned short global_imei_tversum;
+    28: 
+    29: unsigned char cell_nr[15] = ""; // = "21681784";
+    30: bit global_modem_init = 0;
+    31: 
+    32: __EEPROM_DATA( 60, 0, 1, 8, '2', '1', '6', '8');
+    33: __EEPROM_DATA( '1', '7', '8', '4',0,0,0,0);
+    34: 
+    35: void serial_recieved(void);
+    36: void serial_send(void);
+    37: void update_lcd(void);
+    38: void convertTemp(void);
+    39: void timer1_interrupt(void);
+    40: void on_recieve(void);
+    41: void on_initial_recieve(void);
+    42: 
+    43: 
+    44: void reset_recieve_buffer(void)
+    45: {
+    46:         global_recieve_done = 0; 
+    47:         global_serial_byte_counter=0;
+    48: }       
+    49: 
+    50: 
+    51: void ad_init(void) // Nicked from H7
+    52: {
+    53:         // AD Conversion clock
+    54:         ADCS0 = 0;
+    55:         ADCS1 = 0;
+    56:         ADCS2 = 0;
     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);
+    58:         //Select AN0/RA0 for AD source
+    59:                 // In this (000) setup, it's only RA0/AN0 that does ad convertion.
+    60:         CHS0=0;
+    61:         CHS1=0;
+    62:         CHS2=0;
+    63:         
+    64:         //Only AN0 is selected for AD and with Vdd/Vss as limits
+    65:         PCFG0=0;
+    66:         PCFG1=1;
+    67:         PCFG2=1;
+    68:         PCFG3=1;
+    69:         
+    70:         //Result is right justified
+    71:         ADFM=1; 
+    72:         
+    73:         //Fire up for A/D converter module
+    74:         ADON=1;
+    75: }
+    76: 
+    77: void rs232_init(void)
+    78: {
+    79:         SPEN    = 0;    // Serial Port Enable Bit... 0 = disabled
+    80:         TRISC6  = 0;    
+    81:         TRISC7  = 1;
+    82: 
+    83:         SPBRG   = 207;  // 1200 baud rate... 25 = 9600
+    84:                                         // x = (Fosc / (16*[baud rate]) )-1
+    85:         TXSTA   = 0x24; // Enables BRGH and TXEN inthe TXSTA register
+    86:         RCSTA   = 0x90; // 0x90 enables SPEN and CREN in the RCSTA register
+    87: }
+    88: 
+    89: void interrupt_init(void)
+    90: {
+    91:         // Assumes that all interrupts default is 0
+    92:         PEIE    = 1;
+    93:         GIE             = 1;
+    94:         RCIE    = 1;    // Recieve interrupt enable.
+    95:         IPEN    = 0;    // Nfo interrupt priority
+    96:         TXIE    = 0;    // Serial interrupt enabled
+    97:         TMR1IE  = 1;    // Enables timer 1
+    98: }       
+    99: 
+   100: void timer_init(void)
+   101: {
+   102:         TMR1CS = 1; //use external clock
+   103:         
+   104:         T1CKPS1 = 1; //1:8 prescale
+   105:         T1CKPS0 = 1;
    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);
+   107:         TMR1H = 0xEF;
+   108:         TMR1L = 0xFF;
+   109: 
+   110:         T1OSCEN = 1; //enable oscillator circuit        
+   111:         RD16 = 0; //normal 8 bit writes
+   112:         TMR1ON = 1;
+   113: }
+   114: 
+   115: void pic18_io_init(void)
+   116: {
+   117:         TRISA0  = 1;    // analog input
+   118:         TRISA1  = 0;    // Output
+   119:         TRISB1  = 1;    // TRISB1-4 Digital input
+   120:         TRISB2  = 1;
+   121:         TRISB3  = 1;
+   122:         TRISB4  = 1;
+   123: }       
    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: }
+   125: void sms_init(void)
+   126: {
+   127:         int i;
+   128: 
+   129:         reset_recieve_buffer();
+   130:         sprintf(global_serial_send,"at+cgsn\r");
+   131:         serial_send();
+   132:         DelaySek(1);
+   133:         while(!global_recieve_done) ;
+   134: 
+   135: 
+   136:         sprintf(global_serial_send,"%s", "at+cpin=8043\r");
+   137:         serial_send();
+   138:         
+   139:         while(global_modem_init == 0)
+   140:         {
+   141:                 on_initial_recieve();
+   142:         }
+   143: }
+   144: 
+   145: 
+   146: void interrupt interrupt_handler(void)
+   147: {
+   148:         // Finds out what interrupt have been trigged, and starts the respective function.
+   149:         if(RCIF == 1)                   // Serial recieve interrupt
+   150:         {
+   151:                 serial_recieved();
+   152:                 RCIF = 0;
+   153:         }
+   154:         
+   155:         if(TMR1IF == 1)                 // timer1 interrupt trigger.
+   156:         {
+   157:                 timer1_interrupt();
+   158:                 TMR1IF = 0;
+   159:         }
+   160: }               
+   161: 
+   162: 
+   163: void serial_send(void)
+   164: {
+   165:         int i;
+   166:         char data_byte;
+   167:         for(i = 0; i < BUFFER; i++)
+   168:         {
+   169:                 data_byte = global_serial_send[i];
+   170:                 if( data_byte == '\r')
+   171:                         i = (BUFFER - 1);
+   172:                 TXREG = data_byte;
+   173:                 while(TRMT==0) ;
+   174:                 DelayMs(10);
+   175:         }
+   176:         DelayMs(250);
+   177:         DelayMs(250);
+   178: }       
+   179: 
+   180: void serial_recieved(void)
+   181: {
+   182:         char data_byte, saved_data[LCD_LENGTH];
+   183:         
+   184:         data_byte = RCREG;
+   185:         
+   186:         if (data_byte == '\n')
+   187:                 return;
+   188: 
+   189:         global_serial_recieve_buffer[global_serial_byte_counter] = data_byte;
+   190:                 
+   191:         if (data_byte == '\r')
+   192:         {
+   193:                 global_recieve_done = 1;
+   194:                 //global_serial_byte_counter = 0;
+   195:                 global_serial_recieve_buffer[global_serial_byte_counter+1] = 0; //zero terminate
+   196:         }       
+   197:         else
+   198:         {
+   199:                 global_serial_byte_counter++;
+   200:         }
+   201:         
+   202: }
+   203: 
+   204: void timer1_interrupt(void)
+   205: {
+   206:         TMR1H = 0xEF;
+   207:         TMR1L = 0xFF;
+   208:         global_time_counter++;
+   209:         global_emergency_counter++;
+   210:         RA1 = !RA1;
+   211: }
+   212: 
+   213: void update_lcd(void)
+   214: {
+   215:         lcd_clear();
+   216:         lcd_goto(0x00);
+   217:         lcd_puts(global_temp);
+   218: 
+   219: }
+   220:         
+   221: void send_update(void)
+   222: {
+   223:         sprintf(global_serial_send, "at+cmgs=\"%s\"\r", cell_nr);
+   224:         serial_send();
+   225:         sprintf(global_serial_send, "%d:%d:%d:%d:%d:%d%c", global_sms_counter, global_temp, FIREDET, EMPTYTANK, FEEDING, PWRFAIL, 0x1A);
+   226:         lcd_goto(40);
+   227:         lcd_puts(global_serial_send);
+   228:         serial_send();
+   229:         DelayMs(250);
+   230:         global_sms_counter++;
+   231: }       
+   232: 
+   233: void convertTemp()
+   234: {
+   235:         short adVal;
+   236:         adVal = (global_Pot_Hi << 8) | global_Pot_Lo;
+   237:         if( adVal >=840 )
+   238:                 global_temp = 100;
+   239:         else
+   240:                 global_temp = (adVal / 8.3886);
+   241: }
+   242: 
+   243: 
+   244: 
+   245: void eeprom_writer(void)
+   246: {
+   247:         char len,i;
+   248:         
+   249:         len = strlen(cell_nr);
+   250:         eeprom_write(0, (global_time_interval/60));
+   251:         eeprom_write(1, global_sms_counter>>8);
+   252:         eeprom_write(2, global_sms_counter);
+   253:         eeprom_write(3, len);
+   254:         
+   255:         for (i=0; i<len; ++i)
+   256:         {
+   257:                 eeprom_write(i+4, cell_nr[i] );
+   258:         }
+   259: }
+   260: 
+   261: void eeprom_reader(void)
+   262: {
+   263:         char len,i;
+   264:         
+   265:         global_time_interval = eeprom_read(0);
+   266:         global_time_interval *= 60;
+   267:         global_sms_counter = (eeprom_read(1)<<8) | eeprom_read(2);
+   268:         len = eeprom_read(3);
+   269:         
+   270:         for (i=0; i<len; ++i)
+   271:         {
+   272:                 cell_nr[i] = eeprom_read(i+4);
+   273:         }
+   274:         
+   275:         cell_nr[i] = 0; //zero terminated!
+   276: }       
+   277: 
+   278: void on_initial_recieve(void)
+   279: {
+   280:         char imei[16];
+   281:         char* ptr;
+   282:         char i;
+   283:         
+   284:         if (strstr(global_serial_recieve_buffer,"+WIND: 11") != 0)
+   285:         {
+   286:                 global_modem_init = 1;
+   287: 
+   288:                 ptr = strstr(global_serial_recieve_buffer,"cgsn");
+   289:                 ptr +=4;
+   290:                 strncpy(imei, ptr,15);
+   291:                 imei[15] = 0;
+   292: 
+   293:                 global_imei_tversum = 0;
+   294:                 for (i=0; i<15; ++i)
+   295:                 {
+   296:                         global_imei_tversum += (imei[i] - '0');
+   297:                 }
+   298:                 
+   299:                 
+   300:                 reset_recieve_buffer();
+   301:         }
+   302:         
+   303: 
+   304: }
+   305: 
+   306: 
+   307: void on_recieve(void)
+   308: {
+   309:         char tmp[17];
+   310:         if (global_recieve_done == 0)
+   311:                 return;
+   312:                 
+   313:         lcd_clear();
+   314:         lcd_goto(0x00);
+   315:         tmp[0] = 0;
+   316:         strncat(tmp,global_serial_recieve_buffer,16);
+   317:         lcd_puts(tmp);
+   318:         if (strncmp(global_serial_recieve_buffer,"+WIND: 11", 3) == 0)
+   319:         {
+   320:                 global_modem_init = 1;
+   321:         }
+   322:         
+   323:         reset_recieve_buffer();
+   324: }
+   325: 
+   326: void main()
+   327: {
+   328: ////////////////////
+   329: // Running Init's //
+   330: 
+   331:         // Running init for various components.
+   332:         pic18_io_init();
+   333:         rs232_init();
+   334:         ad_init();
+   335:         lcd_init(0);
+   336:         interrupt_init();
+   337:         sms_init();
+   338:         //eeprom_init();
+   339:         timer_init();
+   340:         eeprom_reader();
+   341: ///////////////
+   342: // Main loop //
+   343: 
+   344: 
+   345:         while(1)
+   346:         {
+   347:         // If there happends to be a critical state on the system, we send a sms.
+   348:                 if( (global_temp >= 90 || PWRFAIL == 1 || FIREDET == 0 || FEEDING == 1 || EMPTYTANK == 1) && global_emergency_counter >= 600 )
+   349:                 {
+   350:                         send_update();
+   351:                         global_emergency_counter = 0;
+   352:                 }
+   353:         // Every X sec. a status sms is send.
+   354:                 if(global_time_counter >= 3600)
+   355:                 {
+   356:                         send_update();
+   357:                         global_time_counter = 0;
+   358:                 }
+   359:         // To avoid buffer overrun.
+   360:                 if( global_emergency_counter > 7200 )
+   361:                         global_emergency_counter = 600;
+   362: 
+   363:         // Checks if there has been recieved a config sms.
+   364:                 if(global_interval_changed )
+   365:                 {
+   366:                         eeprom_writer();
+   367:                         global_interval_changed = 0;
+   368:                 }
+   369:         // Checking if A/D convertion is done, and save the data in global_Pot_??
+   370:                 if(GODONE==0)
+   371:                 {
+   372:                         global_Pot_Hi = ADRESH;
+   373:                         global_Pot_Lo = ADRESL;
+   374:                         convertTemp();
+   375:                         update_lcd();
+   376:                         GODONE = 1;
+   377:                 }
+   378:                 
+   379:                 //if (global_recieve_done)
+   380:                 //{
+   381:                         on_recieve();
+   382:                 //      global_recieve_done = 0;
+   383:                 //      global_serial_byte_counter = 0;
+   384:                 //}
+   385:         }
+   386: }