main.c

一个采用单片机的外部中断0口实现的红外遥控解码程序 可对大部分的遥控器进行解码 而只需要对其进行一些小的改动即可 采用的是avr的atmega16的单片机

#include<iom16.h>
#include<inavr.h>
#include<RemoKey.h>
#include<define.h>
unsigned char Flag=0;
unsigned int temp;

#define Debug_Uart
//#define Debug_ANA
//#define Debug_Spi
//#define Debug_T2
//#define Debug_T1
//#define Debug_WDT
//#define Debug_T0

void NmDelay(unsigned int n)
{
 unsigned char i; 
   while(n--)i=0;
   for(;i<125;)
       i++;
}

void ANA_Init(void)
{
 ACSR=0x00;
 ACSR|=0x02;
 ACSR|=0x08;
 //SFIOR|=0x08;
 //ADMUX=0x02;
// ADCSRA=0x00;
}

void WDT_On(void)
{
 WDTCR=0x0f;
}

void WDT_Off(void)
{
 WDTCR|=0x18;
 WDTCR&=~0x08;
}

void WDT_Reset(void)
{
 __watchdog_reset();
}

void Uart_Init(void)
{
 UBRRL=25;   //8M--Buad=19200
 UCSRB=0xd8; 
}

void Uart_Send_Byte(unsigned char c)
{
#ifdef Debug_Uart
 UCSRB=0x98;
 ClrBit(UCSRA,TXC);
 UDR=c;
 while(!(ValBit(UCSRA,TXC)));
 ClrBit(UCSRA,TXC);
#endif
}

void Spi_Send(unsigned char ch)
{
 SPSR&=0x7f;
 SPDR=ch;
 while(SPSR|0x80==0);
 SPSR&=0x7f;
}

void main( void )
{
#ifdef Debug_Spi
  DDRB|=0xa0;
  SPCR|=0x71;
  SPSR|=0x01;
#endif
  //__sleep();
#ifdef Debug_T1
  DDRD|=0x20;
  TCCR1A|=0x82;//0xc3
  TCCR1B|=0x15;
  ICR1=80;
  OCR1A=20;
#endif
#ifdef Debug_T0
  DDRB|=0x08;
  PORTB|=0x08;
  TCCR0=0x15;
  OCR0=25;
#endif 
#ifdef Debug_WDT
  WDT_On();
#endif
  //OCR1B=30;
  INT0_Enable;
  SREG|=0x80;  
  //TIMSK|=0x01;
  MCUCR|=0x03;
#ifdef Debug_ANA
  ANA_Init();
#endif
  Uart_Init();
  //TCCR1A=0x80;
  //TCCR1B=0xdd;
  //TCCR0=0x06;
  //ICR1=0x06ff;
  TIMSK|=0x01;
  SetBit(DDRB,5);
  SetBit(PORTB,5);
  while(1)
  {
    
#ifdef Debug_WDT
   WDT_Reset();
#endif
#ifdef Debug_Spi
   Spi_Send(0x00);
   //spi-=0x0f;
   //if(spi<=0x0f)
     //spi=0xff;
   NmDelay(50);
   Spi_Send(0xff);
#endif
   //Uart_Send_Byte(ICR1L);
   NmDelay(5000);
   NmDelay(5000);
   NmDelay(5000);
   NmDelay(5000);
   NmDelay(5000);
   NmDelay(5000);
   NmDelay(5000);
   NmDelay(5000);
   NmDelay(5000);
   NmDelay(5000);
  
  if(RemoSuccess==1)
   {
    RemoSuccess=0;
    INT0_Enable;
#ifdef Debug_T0
    Remo_ProT0();
#endif
#ifdef Debug_T1
    Remo_ProT1();
#endif
#ifdef Debug_WDT
    Remo_ProWDT();
#endif
   }
  }
}

#pragma vector=TIMER1_COMPA_vect 
__interrupt void T1AOC_INT(void)
{
 if(Flag==0)
 {
  temp=1;
  OCR1A=temp;
  Flag=1;
 }
 if(Flag==1)
 {
  temp+=5;
  OCR1A=temp;
  if(temp>=0xfF)
  {
   temp=1;
   Flag=0;
  }
 }
}

#pragma vector=SPI_STC_vect
__interrupt void Spi_Int(void)
{
 
}

#pragma vector=ANA_COMP_vect
__interrupt void ANA_Int(void)
{
 Uart_Send_Byte(0x33);
 NmDelay(1000);
}

#pragma vector=20
__interrupt void ICP1_Int(void)
{
 Uart_Send_Byte(0x11);
 NmDelay(1000);
}