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#include <pic18.h> |
#include <pic18.h> |
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#include <stdio.h> |
#include <stdio.h> |
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#include <htc.h> |
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#include <string.h> |
#include <string.h> |
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#include <stdlib.h> |
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#include "lcd.h" |
#include "lcd.h" |
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// Delay.h is included inside lcd.c |
#include "Delay.h" |
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#define BUFFER 160 |
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#define PWRFAIL RB1 |
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#define FIREDET RB2 |
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#define FEEDING RB3 |
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#define EMPTYTANK RB4 |
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unsigned char global_Pot_Hi, global_Pot_Lo; |
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unsigned char global_serial_send[BUFFER], global_serial_recieve_buffer[BUFFER]; |
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bit global_recieve_done = 0; |
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unsigned int global_serial_byte_counter = 0, global_sms_counter = 1, global_time_counter = 0; |
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unsigned int global_emergency_counter = 600, global_time_interval = 3600; |
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unsigned char global_temp = 0; |
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unsigned int global_temp_update_display = 0; |
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unsigned char global_message_buffer1[BUFFER]; |
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unsigned char global_message_buffer2[BUFFER]; |
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unsigned char global_message_buffer_length1; |
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unsigned char global_message_buffer_length2; |
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unsigned char global_lcd_buf[16]; |
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unsigned int global_imei_tversum; |
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unsigned char global_cell_nr[15] = ""; // = "21681784"; |
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bit global_modem_init = 0; |
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bit global_has_imei = 0; |
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unsigned char global_sms_recieve_number[3]; |
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__EEPROM_DATA( 60, 0, 1, 8, '2', '1', '6', '8'); |
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__EEPROM_DATA( '1', '7', '8', '4',0,0,0,0); |
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#define LCD_LENGTH 16 |
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#define LCD_ROWS 2 |
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void serial_recieved(void); |
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void serial_send(void); |
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void update_lcd(void); |
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void convert_temp(void); |
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void timer1_interrupt(void); |
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void on_recieve(void); |
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void on_initial_recieve(void); |
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void sms_recieved(void); |
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void send_sms(const unsigned char* payload); |
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void eeprom_writer(void); |
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unsigned char global_Pot_Hi; |
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unsigned char global_Pot_Lo; |
void reset_recieve_buffer(void) |
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unsigned char global_LCD_Buffer[LCD_ROWS][LCD_LENGTH]; |
{ |
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/*void AD_init(void) |
global_recieve_done = 0; |
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global_message_buffer_length1 = 0; |
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global_message_buffer_length2 = 0; |
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memset(global_message_buffer1, 0, BUFFER); |
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memset(global_message_buffer2, 0, BUFFER); |
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} |
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////////// INITS ////////// |
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void pic18_io_init(void) |
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{ |
{ |
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ADON = 1; |
TRISA0 = 1; // analog input |
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TRISA5 = 0; // Output |
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TRISB1 = 1; // TRISB1-4 Digital input |
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TRISB2 = 1; |
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TRISB3 = 1; |
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TRISB4 = 1; |
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} |
} |
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*/ |
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// Nicked from H7 |
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void ad_init(void) |
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void ad_init(void) // Nicked from H7 |
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{ |
{ |
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// AD Conversion clock |
// AD Conversion clock |
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ADCS0 = 0; |
ADCS0 = 0; |
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ADCS1 = 0; |
ADCS1 = 0; |
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ADCS2 = 0; |
ADCS2 = 0; |
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//Select AN0/RA0 for AD source |
//Select AN0/RA0 for AD source. |
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// In this (000) setup, it's only RA0/AN0 that does ad convertion. |
// In this (000) setup, it's only RA0/AN0 that does ad convertion. |
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CHS0=0; |
CHS0=0; |
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CHS1=0; |
CHS1=0; |
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CHS2=0; |
CHS2=0; |
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PCFG2=1; |
PCFG2=1; |
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PCFG3=1; |
PCFG3=1; |
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//Result is left justified |
//Reset the A/D result registers |
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ADFM=0; |
ADRESH = 0; |
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ADRESL = 0; |
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//Result is right justified |
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ADFM=1; |
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//Fire up for A/D converter module |
//Fire up for A/D converter module |
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ADON=1; |
ADON=1; |
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} |
} |
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void rs232_init(void) |
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{ |
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SPEN = 0; // Serial Port Enable Bit... 0 = disabled |
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TRISC6 = 0; |
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TRISC7 = 1; |
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SYNC = 0; // SYNC switches between async(0) and sync(1) mode. |
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SPBRG = 25; |
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TXSTA = 0x24; |
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RCSTA = 0x90; |
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SPEN = 1; |
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} |
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void interrupt_init(void) |
void interrupt_init(void) |
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{ |
{ |
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// Assumes that all interrupts default is 0 |
// Assumes that all interrupts default is 0 |
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PEIE = 1; |
PEIE = 1; |
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GIE = 1; |
GIE = 1; |
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RCIE = 1; |
RCIE = 1; // Recieve interrupt enable. |
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IPEN = 0; // Nfo interrupt priority |
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TXIE = 0; // Serial interrupt enabled |
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TMR1IE = 1; // Enables timer 1 |
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} |
} |
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void pic18_io_init(void) |
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void timer_init(void) |
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{ |
{ |
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TRISA0 = 1; // analog input |
TMR1CS = 1; //use external clock |
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TRISB1 = 1; // TRISB1-4 Digital input |
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TRISB2 = 1; |
T1CKPS1 = 1; //1:8 prescale |
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TRISB3 = 1; |
T1CKPS0 = 1; |
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TRISB4 = 1; |
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} |
TMR1H = 0xEF; |
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TMR1L = 0xFF; |
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void interrupt_recieve_handler(void) |
T1OSCEN = 1; //enable oscillator circuit |
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RD16 = 0; //normal 8 bit writes |
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TMR1ON = 1; |
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} |
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void rs232_init(void) |
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{ |
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// Handle recieve inputs... |
SPEN = 0; // Serial Port Enable Bit... 0 = disabled |
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TRISC6 = 0; |
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TRISC7 = 1; |
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SPBRG = 207; // 1200 baud rate... 25 = 9600 |
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// x = (Fosc / (16*[baud rate]) )-1 |
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TXSTA = 0x24; // Enables BRGH and TXEN inthe TXSTA register |
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RCSTA = 0x90; // 0x90 enables SPEN and CREN in the RCSTA register |
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} |
} |
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void modem_init(void) |
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{ |
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int i; |
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char buf[2]; |
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while ( strstr(global_message_buffer1,"+WIND: 7") == 0 && global_time_counter < 10 ) ; // Waiting for the modem to be ready |
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reset_recieve_buffer(); |
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sprintf(global_serial_send,"at+cgsn\r"); |
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serial_send(); |
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while (global_has_imei == 0) |
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{ |
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if (strstr(global_message_buffer1,"OK") != 0) |
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{ |
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global_imei_tversum = 0; |
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for (i=0; i<15; ++i) |
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{ |
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buf[0] = global_message_buffer2[i]; |
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buf[1] = 0; |
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global_imei_tversum += atoi(buf); |
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} |
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global_has_imei = 1; |
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} |
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} |
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sprintf(global_serial_send,"%s", "at+cpin?\r"); |
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serial_send(); |
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DelayMs(100); // Delay to give the modem a chance to answer. |
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if (strstr(global_message_buffer1, "+CPIN: SIM PIN") != 0) |
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{ |
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sprintf(global_serial_send,"%s", "at+cpin=8043\r"); |
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serial_send(); |
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while(global_modem_init == 0) |
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{ |
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on_initial_recieve(); |
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} |
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} |
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reset_recieve_buffer(); |
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sprintf(global_serial_send, "at+cmgd=1,4\r"); |
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serial_send(); |
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while ( strstr(global_message_buffer1,"OK") == 0) ; |
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} |
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void serial_send(void) |
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{ |
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int i; |
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char data_byte; |
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for(i = 0; i < BUFFER; i++) |
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{ |
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data_byte = global_serial_send[i]; |
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if( data_byte == '\r') |
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i = (BUFFER - 1); |
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TXREG = data_byte; |
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while(TRMT==0) ; |
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DelayMs(10); |
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} |
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DelayMs(150); |
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global_serial_send[0] = 0; |
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DelayMs(150); |
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} |
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void on_initial_recieve(void) |
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{ |
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if (strstr(global_serial_recieve_buffer,"+WIND: 11") != 0) |
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{ |
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global_modem_init = 1; |
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reset_recieve_buffer(); |
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} |
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} |
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////////// INTERRUPT HANDLER ////////// |
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void interrupt interrupt_handler(void) |
void interrupt interrupt_handler(void) |
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{ |
{ |
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// Finds out what interrupt have been trigged, and starts the respective function. |
// Finds out what interrupt have been trigged, and starts the respective function. |
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if(RCIF == 1) |
if(RCIF == 1) // Serial recieve interrupt |
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{ |
{ |
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interrupt_recieve_handler(); |
serial_recieved(); |
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RCIF = 0; |
RCIF = 0; |
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} |
} |
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if(TMR1IF == 1) // timer1 interrupt trigger. |
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{ |
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timer1_interrupt(); |
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TMR1IF = 0; |
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} |
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} |
} |
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////////// INTERRUPT TRIGGED ////////// |
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void serial_recieved(void) |
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{ |
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char data_byte; |
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data_byte = RCREG; |
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if (data_byte == '\n') // Cant be bothered to do anyting if the byte is a '\n'. |
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return; |
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if (global_serial_byte_counter == 0 && data_byte == '\r') // don't care about '\r', if it's the first byte we recieve. |
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return; |
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if ( global_serial_byte_counter < BUFFER) //Prevent buffer overrun |
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global_serial_recieve_buffer[ global_serial_byte_counter++ ] = data_byte; // fills the data_byte into our buffer. |
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else |
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{ |
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global_serial_recieve_buffer[0] = 0; |
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global_serial_byte_counter = 0; |
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return; |
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} |
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if (data_byte == '\r') // when we meet a '\r', the transmission is done, and we fill the constxt of |
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// global_message_buffer1 into global_message_buffer2 our main buffer into |
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// global_message_buffer2, and the same with our recieve buffer, global_serial_recieve_buffer |
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// into global_message_buffer1. |
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{ |
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global_recieve_done = 1; // indicates the recieve transmission is done. |
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global_serial_recieve_buffer[global_serial_byte_counter] = 0; //zero terminate |
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// global_message_buffer1 -> global_message_buffer2 |
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strcpy(global_message_buffer2, global_message_buffer1); |
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global_message_buffer_length2 = global_message_buffer_length1; |
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// global_serial_recieve_buffer -> global_message_buffer1 |
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strcpy(global_message_buffer1, global_serial_recieve_buffer); |
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global_message_buffer_length1 = global_serial_byte_counter; |
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global_serial_byte_counter = 0; |
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} |
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} |
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void timer1_interrupt(void) |
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{ |
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TMR1H = 0xEF; |
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TMR1L = 0xFF; |
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global_time_counter++; |
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global_emergency_counter++; |
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// RA1 = !RA1; |
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} |
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////////// ORDENARY FUNKTIONS ////////// |
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void update_lcd(void) |
void update_lcd(void) |
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{ |
{ |
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char toLCD0[LCD_LENGTH], toLCD1[LCD_LENGTH]; |
if(global_temp_update_display != global_time_counter) |
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char B1[LCD_LENGTH]; |
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char sprintF[LCD_LENGTH]; |
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lcd_goto(0x00); |
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sprintf(toLCD0, "%s", "Ejdesgaard"); |
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if(RB1) |
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{ |
{ |
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sprintf(B1, "Pwr%s", "True"); |
// lcd_clear(); |
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lcd_goto(0x00); |
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sprintf(global_lcd_buf, "Temp: %3d", global_temp); |
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lcd_puts(global_lcd_buf); |
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global_temp_update_display = global_time_counter; |
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} |
} |
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} |
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void send_update(void) |
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{ |
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char update[40]; |
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sprintf(update, "%d:%d:%d:%d:%d:%d", global_sms_counter, global_temp, FIREDET, EMPTYTANK, FEEDING, PWRFAIL); |
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send_sms(update); |
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global_sms_counter++; |
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} |
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void send_sms(const unsigned char* payload) |
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{ |
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sprintf(global_serial_send, "at+cmgs=\"%s\"\r", global_cell_nr); |
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serial_send(); |
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sprintf(global_serial_send, "%s%c", payload, 0x1A); |
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serial_send(); |
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DelayMs(150); |
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if(global_sms_counter % 4 == 0) |
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{ |
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eeprom_writer(); |
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sprintf(global_serial_send, "at+cmgd=1,3\r"); |
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serial_send(); |
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while ( strstr(global_message_buffer1,"OK") == 0) ; |
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} |
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} |
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void convert_temp(void) |
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{ |
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short adVal; |
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adVal = (global_Pot_Hi << 8) | global_Pot_Lo; |
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if( adVal >=840 ) |
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global_temp = 100; |
342 |
else |
else |
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global_temp = (unsigned char) (adVal / 8.3886); |
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} |
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void eeprom_writer(void) |
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{ |
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char len,i; |
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len = strlen(global_cell_nr); |
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eeprom_write(0, (global_time_interval/60)); |
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eeprom_write(1, global_sms_counter>>8); |
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eeprom_write(2, global_sms_counter); |
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eeprom_write(3, len); |
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for (i=0; i<len; ++i) |
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{ |
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eeprom_write(i+4, global_cell_nr[i] ); |
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} |
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} |
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void eeprom_reader(void) |
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{ |
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char len,i; |
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global_time_interval = eeprom_read(0); |
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global_time_interval *= 60; |
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global_sms_counter = (eeprom_read(1)<<8) | eeprom_read(2); |
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len = eeprom_read(3); |
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for (i=0; i<len; ++i) |
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{ |
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global_cell_nr[i] = eeprom_read(i+4); |
376 |
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} |
377 |
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global_cell_nr[i] = 0; //zero terminated! |
379 |
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} |
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void on_recieve(void) |
383 |
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{ |
384 |
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char tmp[3]; |
385 |
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char* ptr; |
386 |
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tmp[0]=0; |
387 |
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388 |
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if (global_recieve_done == 0 || global_message_buffer_length1 == 0) |
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return; |
390 |
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if (strstr(global_message_buffer1,"CMTI") != 0) // here we handles a incomming SMS |
392 |
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{ |
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ptr = strstr(global_message_buffer1,","); // finds the point just before the nr. of the SMS. |
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strcat(tmp,ptr+1); // puts that number in tmp |
395 |
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global_sms_recieve_number[0] = 0; // wanna be sure that we write the new number from global_sms_recieve_number[0] |
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strcat(global_sms_recieve_number, tmp); // puts the sms number into the global variable. |
397 |
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sms_recieved(); |
398 |
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} |
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reset_recieve_buffer(); |
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} |
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402 |
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void sms_recieved(void) |
403 |
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{ |
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char buf[4]; |
405 |
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char i,imei; |
406 |
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char pos; |
407 |
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408 |
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sprintf(global_serial_send, "AT+CMGR=%s\r", global_sms_recieve_number); // formates the variable that sends commands to the SMS modem. |
409 |
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serial_send(); // Sends the command. |
410 |
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while(strstr(global_message_buffer1, "OK") == 0) // stays here until we recieve a "OK" from the modem. |
412 |
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DelayMs(1); |
413 |
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414 |
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DelayUs(10); |
415 |
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416 |
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for (i=0; global_message_buffer2[i] != ':' && global_message_buffer2[i] != 0; ++i) |
417 |
{ |
{ |
418 |
sprintf(B1, "%s", "False"); |
buf[i] = global_message_buffer2[i]; |
419 |
} |
} |
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lcd_puts(B1); |
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421 |
lcd_goto(0x40); |
buf[i] = 0; |
422 |
sprintf(sprintF,"%08d%08d", global_Pot_Hi, global_Pot_Lo); |
imei = atoi(buf); |
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lcd_puts(sprintF); |
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423 |
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424 |
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if (imei == global_imei_tversum) |
425 |
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{ |
426 |
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i++; //spring over ':' |
427 |
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pos = 0; |
428 |
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for ( ; global_message_buffer2[i] != ':'; ++i, ++pos) |
429 |
|
{ |
430 |
|
global_cell_nr[pos] = global_message_buffer2[i]; |
431 |
|
} |
432 |
|
global_cell_nr[pos] = 0; //zero terminator |
433 |
|
|
434 |
|
i++; //spring over ':' |
435 |
|
pos=0; |
436 |
|
for ( ; global_message_buffer2[i] ; ++i,++pos) |
437 |
|
{ |
438 |
|
buf[pos] = global_message_buffer2[i]; |
439 |
|
} |
440 |
|
buf[pos]=0; |
441 |
|
|
442 |
|
global_time_interval = atoi(buf); |
443 |
|
global_time_interval *= 60; |
444 |
|
eeprom_writer(); // writes the new cell nr. and time interval to the eeprom. |
445 |
|
send_sms("conf ok"); |
446 |
|
} |
447 |
|
|
448 |
|
|
449 |
|
} |
450 |
|
|
451 |
|
void Delay(int time) |
452 |
|
{ |
453 |
|
int wanted = (global_time_counter + time) % global_time_interval; |
454 |
|
|
455 |
|
while (global_time_counter < wanted) ; |
456 |
} |
} |
457 |
|
|
458 |
void main() |
void main() |
459 |
{ |
{ |
460 |
///////////////////////////////////////////// |
//////////////////// |
461 |
// Running Init's |
// Running Init's // |
462 |
|
|
463 |
// Running init for various components. |
// Running init for various components. |
|
//AD_init(); |
|
|
ad_init(); |
|
|
rs232_init(); |
|
464 |
pic18_io_init(); |
pic18_io_init(); |
465 |
|
RA5 = 1; // Indicates that the board is running inits. |
466 |
|
|
467 |
|
rs232_init(); |
468 |
|
ad_init(); |
469 |
lcd_init(0); |
lcd_init(0); |
470 |
|
lcd_clear(); |
471 |
|
lcd_home(); |
472 |
|
interrupt_init(); |
473 |
|
timer_init(); |
474 |
|
modem_init(); |
475 |
|
eeprom_reader(); |
476 |
|
/////////////// |
477 |
|
// Main loop // |
478 |
|
|
479 |
|
DelayMs(50); |
480 |
|
reset_recieve_buffer(); |
481 |
|
|
482 |
///////////////////////////////////////////// |
RA5 = 0; // Inits are done, and RA1 will now work as a error notifier. |
|
// Main loop |
|
483 |
|
|
484 |
while(1) |
while(1) |
485 |
{ |
{ |
486 |
|
// If there happends to be a critical state on the system, we send a sms. |
487 |
|
if( (global_temp >= 90 || PWRFAIL == 1 || FIREDET == 0 || FEEDING ==1 ) && global_emergency_counter >= 600 ) |
488 |
|
{ |
489 |
|
send_update(); |
490 |
|
global_emergency_counter = 0; |
491 |
|
} |
492 |
|
|
493 |
|
// Every X sec. a status sms is send. |
494 |
|
if(global_time_counter >= global_time_interval) |
495 |
|
{ |
496 |
|
send_update(); |
497 |
|
global_time_counter = 0; |
498 |
|
} |
499 |
|
// To avoid buffer overrun. |
500 |
|
if( global_emergency_counter > 7200 ) |
501 |
|
global_emergency_counter = 600; |
502 |
|
|
503 |
// Checking if A/D convertion is done, and save the data in global_Pot_?? |
// Checking if A/D convertion is done, and save the data in global_Pot_?? |
504 |
if(GODONE==0) |
if(GODONE==0) |
505 |
{ |
{ |
506 |
global_Pot_Hi = ADRESH; |
global_Pot_Hi = ADRESH; |
507 |
global_Pot_Lo = ADRESL; |
global_Pot_Lo = ADRESL; |
508 |
|
convert_temp(); |
509 |
|
update_lcd(); |
510 |
GODONE = 1; |
GODONE = 1; |
511 |
} |
} |
512 |
|
// Handels the recieve sms'es. |
513 |
update_lcd(); |
on_recieve(); |
514 |
} |
} |
515 |
} |
} |