pic16f917…..program code query

[Rahul]

I have written this code and i am getting an unexpected error. while debugging i noticed that the Variable “num”, ihave initialised is not same. Consider the Picture, which is in the end.

 

Here is my program,

 

#include<16f917.h>

#fuses HS

#use delay(clock=20000000)

#use standard_io(d)

#use standard_io(b)

 

#byte trisb=0x86

#byte portb=0x06

#byte trisd=0x88

#byte portd=0x08

 

 

void ssd(unsigned int16);

void disp(unsigned int16);

unsigned int16 num=0x1234;

 

 

void main()

{

   trisd=0x00;

   trisb=0x00;

   portd=0x00;

   portb=0xfe;

 

   for(;

   {

      //unsigned int16 number=0x1234;

      //number= 0x1234;

      ssd(num);

   }

}

 

 

void ssd(unsigned int16 data)

{

   unsigned int16 value1=0x0000, value2=0x0000, value3=0x0000, value4=0x0000;

   value1 = data & 0xf000;

   value2 = data & 0x0f00;

   value2 = value2<<4;

   value3 = data & 0x00f0;

   value3 = value3<<8;

   value4 = data & 0x000f;

   value4 = value4<<12;

   output_low(pin_b1);

   disp(value1);

   output_high(pin_b1);

   delay_us(500);

   output_low(pin_b2);

   disp(value2);

   output_high(pin_b2);

   delay_us(500);

   output_low(pin_b3);

   disp(value3);

   output_high(pin_b3);

   delay_us(500);

   output_low(pin_b4);

   disp(value4);

   output_high(pin_b4);

   delay_us(500);

}

 

 

void disp(unsigned int16 temp)

{

   unsigned int16 x=0x0000;

   x=temp;

   switch(x)

   {

      case 0000 : portd= 0xc0;

               break;

 

      case 1000 : portd= 0xf9;

               break;

 

      case 2000 : portd= 0xa4;

               break;

 

      case 3000 : portd= 0xb0;

               break;

 

      case 4000 : portd= 0x99;

               break;

 

      case 5000 : portd= 0x92;

               break;

 

      case 6000 : portd= 0x82;

               break;

 

      case 7000 : portd= 0xf8;

               break;

 

      case 8000 : portd= 0x80;

               break;

 

      case 9000 : portd= 0x98;

               break;

 

      default : portd= 0x00;

               break;

   }

}.

 

 

 

 

 

 

[Rahul]

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