need help programing PIC18F14K22

Discussion in 'C' started by Pretendent, May 8, 2013.

  1. Pretendent

    Pretendent New Member

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    hello to all
    I have a problem over here :/ here is the point.

    I have a thermometer connected to battery (12v)
    and I need that: when my thermometer reaches 35 celsius it should open the transistor.
    then from the other battery energy flow to the fan

    thermometer code:
    Code:
    #include <p18f14k22.h>
    #pragma config FOSC  = IRC        
    #pragma config WDTEN = OFF  
    #pragma config LVP   = OFF        
    
    const rom unsigned char table_7_segm[]=       
     {
      0x5F, //0
      0x06, //1
      0x3B, //2
      0x2F, //3
      0x66, //4
      0x6D, //5
      0x7D, //6
      0x07, //7
      0x7F, //8
      0x6F, //9
      0x01,      
    };
    
    #pragma code
    
    void delay (unsigned int ms)
    {
    unsigned int i;
    for(i =0 ; i < 332; i++);    
    }
    
    void main (void)
    {
    float skaicius = 0;
    char indikatorius = 0;
    char i = 0;
    	
    
    OSCCONbits.IRCF2 = 1;
    OSCCONbits.IRCF1 = 1;
    OSCCONbits.IRCF0 = 1;
    
    ANSEL = 0b0000100;
    ANSELH = 0b0000;
                      
    PORTA = 0;
    TRISA = 0b00100;
    PORTB = 0;
    TRISB = 0;
    PORTC = 0;
    TRISC = 0;
    
    ADCON1 = 0x00;
    ADCON2 = 0b10111101;
    ADCON0 = 0b00001001;
    while (1)
    {
    
    ADCON0bits.GO = 1;
    while (ADCON0bits.GO == 1);
    skaicius = ((unsigned int)ADRESH << 8) |  (unsigned int)ADRESL;
           
    skaicius = skaicius*40.88;
            
    skaicius +=0.5;               
    skaicius = skaicius/1000;
    indikatorius = 0x80;
    for (i=0; i<4; i++) 
    {
    LATC = table_7_segm [(int) (skaicius)]; 
    skaicius = skaicius - (int)skaicius;
    skaicius = skaicius * 10;
    LATB = indikatorius; 
    if(i==1)
    PORTCbits.RC7=1;
                 
    delay(5);
    LATB = 0;
    indikatorius = indikatorius >> 1; 
    }
    }
    
    }
    than you for any help and comments
     

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