原创 ATMEGA16单键连发

/*******************************************************
This program was created by the
CodeWizardAVR V3.12 Advanced
Automatic Program Generator
?Copyright 1998-2014 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.com

Project : 
Version : 
Date    : 2024/6/9
Author  : 
Company : 
Comments: 


Chip type               : ATmega16
Program type            : Application
AVR Core Clock frequency: 8.000000 MHz
Memory model            : Small
External RAM size       : 0
Data Stack size         : 256
*******************************************************/

#include 

#define key_input PIND.7
#define key_state_0 0
#define key_state_1 1
#define key_state_2 2
#define key_state_3 3
// Declare your global variables here
typedef unsigned char uchar;
typedef unsigned int uint;

const uchar led_7[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,
	  			0x7d,0x07,0x7f,0x6f};
const uchar position[6]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf};
uchar time[3];
uchar dis_buff[6];
uchar time_counter,key_stime_counter;
uchar posit;
bit point_on,time_1s_ok,key_stime_ok;

void display(void)
{
 PORTD=0xff;
 PORTC=led_7[dis_buff[posit]];
 if(point_on&&(posit==2||posit==4))PORTC|=0X80;
 PORTD=position[posit];
 if(++posit>=6)posit=0;
}

interrupt [TIM0_COMP] void time0_comp_isr(void)
{
    display();
    if(++key_stime_counter>=5)
    {
        key_stime_counter=0;
        key_stime_ok=1;
        if(++time_counter>=100)
        {
            time_counter=0;
            time_1s_ok=1;
        }
    }
}
void time_to_disbuffer(void)
{
 	 uchar i,j=0;
	 for(i=0;i<=2;i++)
	 {
	  				  dis_buff[j++]=time%10;
					  dis_buff[j++]=time/10;
	 }
}

uchar read_key_n(void)
{
    static uchar key_state=0,key_time=0;
    uchar key_press,key_return=0;
    key_press=key_input;
    switch(key_state)
    {
        case key_state_0:
        if(!key_press) key_state=key_state_1;
        break;
        case key_state_1:
        if(!key_press)
        {
            //key_return=1;
            key_state=key_state_2;
            key_time=0;
        }                         
        else
            key_state= key_state_0;
        break;
        case key_state_2:
        if(key_press)
        {
            key_state= key_state_0;
       
        
            key_return=1;
        } 
        else if(++key_time>=100)
        {
             key_state= key_state_3;
       
             key_time=0;
            key_return=2;
        }
            break;
        case  key_state_3:
        if(key_press) key_state= key_state_0;
        else
        {
            if(++key_time>=50)
            {
                key_time=0;
                key_return=2;
            }
        } 
        break;
    } 
    return key_return;
}
void main(void)
{
// Declare your local variables here
  PORTC=0;
  DDRC=0XFF;
  PORTD=0X3F;
  DDRD=0X3F;
  TCCR0=0X0B;
  TCNT0=0;
  OCR0=0X7C;
  TIMSK=2;
  
   time[2]=23;time[1]=58;time[0]=55;
 posit=0;
 time_to_disbuffer();      
 
 #asm("sei");

while (1)
      {
      // Place your code here
         if(time_1s_ok)
         {
            time_1s_ok=0;
            point_on=~point_on;
         }                     
         if(key_stime_ok)
         {
            key_stime_ok=0;
            switch(read_key_n())
            {  
                case 1:
                    ++time[0];
                    break;
                case 2:
                    time[0]+=10;
                    break;
            }
                if(time[0]>=60)
                {
                    time[0]-=60;
                    if(++time[1]>=60)
                    {
                        time[1]=0;
                        if(++time[2]>=24)
                            time[2]=0;
                    }
                } 
                time_to_disbuffer();
            }
            
        
      }
}