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display float on 16x2 LCD in PIC 16F877 using Hi-tech C compiler

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ecaits

ecaits

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Hi friends,

I want to display float value on LCD display in PIC16F877 using Hi-tech C compiler.

Can anybody help me???
 


Hi ecaits,
sprintf() can eat up more memory on PIC16F877. Fixed point arithmetic is good. But if you still want to use float, use the follwoing code to display on LCD.
Code: 
#define DECIMAL_PLACES    (100)    // 2 digits after decimal

void displayFloat(float value)              // Assume value = 123.456
{
      unsigned long a = value;              // a = 123
      value = (value - (float)a) * (DECIMAL_PLACES);       // value = 45.6
      unsigned long b = value;              // b = 45

      display(a);
      display('.');
      display(b);
}


Raj Gunaseelan
 

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