Co je spatne?

[Bolek]

Je to cast funkce, ktera cela vypada ted takhle:

uint8_t ReadColumn( uint8_t column)
// Reads one column, return index of the key pressed
// Returns 0xFF if the reading is not stable or no key is pressed
{
   // How many reading must be the same before
   // the value is accepted. It is used to get rid
   // of transitional effect when the key is pressed
   uint16_t i, value, prevval;

   ADMUX = column+4;

   // Get first reading
   ADCSRA = admask | adsc;
   while (ADCSRA & adsc) ;
   ADCSRA = ADCSRA | adif;

   prevval = ADCW >> 2;
   // Loop
   for (i=1; i<256; i++) {
       // Start conversion, loop until it is done
       ADCSRA = admask | adsc;
       while (ADCSRA & adsc) ;
       ADCSRA = ADCSRA | adif;
       // Read value
       value = ADCW >> 2;

       if (prevval!=value) return 0xFF;
       prevval = value;
   }

   char buffer[10];
   sprintf( buffer, "%x%x", ADMUX, value);
   DisplayText( buffer);

   if (value>0xE0) return 0xFF;  // No key is pressed, pin is pulled up 
to AUCC
   else if (value>0xA0) return 0;
   else if (value>0x60) return 1;
   else if (value>0x20) return 2;
   else return 3;
}

Ivo Neubauer wrote:

> to je jak cast nejake funkce, nebo naky vykousnuti z main ?????
> 
> 
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