Hey

Ich hab da noch was gefunden, http://www.mikrocontroller.net/artic....C3.BCr_AVR.29

Ich musste es allerdings ab Ändern weil ich ja den Atmega644 mit 8MHz verwende, hier mein Code.

Code:
/************************************************************************/
/*                                                                      */
/*                      Debouncing 8 Keys                               */
/*                      Sampling 4 Times                                */
/*                      With Repeat Function                            */
/*                                                                      */
/*              Author: Peter Dannegger                                 */
/*                      danni@specs.de                                  */
/*                                                                      */
/************************************************************************/
 
#include <stdint.h>
#include <avr/io.h>
#include <avr/interrupt.h>
 
#ifndef F_CPU
#define F_CPU           8000000UL                   // processor clock frequency
#warning kein F_CPU definiert
#endif
 
#define KEY_DDR         DDRD
#define KEY_PORT        PORTD
#define KEY_PIN         PIND
#define KEY0            0
#define KEY1            1
#define KEY2            2
#define ALL_KEYS        (1<<KEY0 | 1<<KEY1 | 1<<KEY2)
 
#define REPEAT_MASK     (1<<KEY1 | 1<<KEY2)       // repeat: key1, key2
#define REPEAT_START    50                        // after 500ms
#define REPEAT_NEXT     20                        // every 200ms
 
#define LED_DDR         DDRB
#define LED_PORT        PORTB
#define LED0            0
#define LED1            1
#define LED2            2
 
volatile uint8_t key_state;                                // debounced and inverted key state:
                                                  // bit = 1: key pressed
volatile uint8_t key_press;                                // key press detect
 
volatile uint8_t key_rpt;                                  // key long press and repeat
 
 
ISR( TIMER0_OVF_vect )                            // every 10ms
{
  static uint8_t ct0, ct1, rpt;
  uint8_t i;
 
  TCNT0 = (uint8_t)(int16_t)-(F_CPU / 1024 * 10e-3 + 0.5);  // preload for 10ms
 
  i = key_state ^ ~KEY_PIN;                       // key changed ?
  ct0 = ~( ct0 & i );                             // reset or count ct0
  ct1 = ct0 ^ (ct1 & i);                          // reset or count ct1
  i &= ct0 & ct1;                                 // count until roll over ?
  key_state ^= i;                                 // then toggle debounced state
  key_press |= key_state & i;                     // 0->1: key press detect
 
  if( (key_state & REPEAT_MASK) == 0 )            // check repeat function
     rpt = REPEAT_START;                          // start delay
  if( --rpt == 0 ){
    rpt = REPEAT_NEXT;                            // repeat delay
    key_rpt |= key_state & REPEAT_MASK;
  }
}
 
///////////////////////////////////////////////////////////////////
//
// check if a key has been pressed. Each pressed key is reported
// only once
//
uint8_t get_key_press( uint8_t key_mask )
{
  cli();                                          // read and clear atomic !
  key_mask &= key_press;                          // read key(s)
  key_press ^= key_mask;                          // clear key(s)
  sei();
  return key_mask;
}
 
///////////////////////////////////////////////////////////////////
//
// check if a key has been pressed long enough such that the
// key repeat functionality kicks in. After a small setup delay
// the key is reported being pressed in subsequent calls
// to this function. This simulates the user repeatedly
// pressing and releasing the key.
//
uint8_t get_key_rpt( uint8_t key_mask )
{
  cli();                                          // read and clear atomic !
  key_mask &= key_rpt;                            // read key(s)
  key_rpt ^= key_mask;                            // clear key(s)
  sei();
  return key_mask;
}
 
///////////////////////////////////////////////////////////////////
//
uint8_t get_key_short( uint8_t key_mask )
{
  cli();                                          // read key state and key press atomic !
  return get_key_press( ~key_state & key_mask );
}
 
///////////////////////////////////////////////////////////////////
//
uint8_t get_key_long( uint8_t key_mask )
{
  return get_key_press( get_key_rpt( key_mask ));
}
 
int main( void )
{
  LED_PORT = 0xFF;
  LED_DDR = 0xFF;                     
 
  // Configure debouncing routines
  KEY_DDR &= ~ALL_KEYS;                // configure key port for input
  KEY_PORT |= ALL_KEYS;                // and turn on pull up resistors
 
  TCCR0A = (1<<CS02)|(1<<CS00);         // divide by 1024
  TCNT0 = (uint8_t)(int16_t)-(F_CPU / 1024 * 10e-3 + 0.5);  // preload for 10ms
  TIMSK0 |= 1<<TOIE0;                   // enable timer interrupt
 
  sei();
 
  while(1){
    if( get_key_short( 1<<KEY1 ))
      LED_PORT ^= 1<<LED1;
 
    if( get_key_long( 1<<KEY1 ))
      LED_PORT ^= 1<<LED2;
 
    // single press and repeat
 
    if( get_key_press( 1<<KEY2 ) || get_key_rpt( 1<<KEY2 )){
      uint8_t i = LED_PORT;
 
      i = (i & 0x07) | ((i << 1) & 0xF0);
      if( i < 0xF0 )
        i |= 0x08;
      LED_PORT = i;      
    }
  }
}
Aber wie bei dem anderen auch, leider kein Ergebnis, schade den das mit lang und kurz drücken hört sich echt cool an,
das werd ich doch wohl noch hin bekommen?

by Ferdinand.