一个红外接收和发送程序的问题

只看该作者 · 2010-5-9 21:42

各位大侠这是一个红外接收和发送程序接收使用外部中断0,1。产生中断的时候用定时器1记录电平长宽。用数据存起来在发射程序中使用但是编译没有错误下载到芯片里却没有反应请大家给我找找错误谢谢了。

//ICC-AVR application builder : 2010-5-6 20:45:56
// Target : M128
// Crystal: 8.0000Mhz

#include <iom128v.h>
#include <macros.h>
#define uchar unsigned char;
unsigned char a[140];//数据存储数组
unsigned char b[140];
unsigned char i=0;
unsigned char j=0;//记录信号位数
unsigned char k;

//TIMER0 initialize - prescale:Stop
// WGM: Normal
// desired value: 8MHz
// actual value: Out of range

//TIMER1 initialize - prescale:Stop
// WGM: 0) Normal, TOP=0xFFFF
// desired value: 8MHz
// actual value: Out of range
void timer1_init(void)
{
TCCR1B = 0x00; //stop
TCNT1H = 0x00 /*INVALID SETTING*/; //setup
TCNT1L = 0x00 /*INVALID SETTING*/;
TCCR1A = 0x00;
}

#pragma interrupt_handler timer1_ovf_isr:15
void timer1_ovf_isr(void)
{
//TIMER1 has overflowed
TCNT1H = 0x00 /*INVALID SETTING*/; //reload counter high value
TCNT1L = 0x00 /*INVALID SETTING*/; //reload counter low value
TCCR1B=0X00;//关断定时器1
TIMSK=0X00;//关定时器中断使能
}

//TIMER3 initialize - prescale:Stop
// WGM: 0) Normal, TOP=0xFFFF
// desired value: 8MHz
// actual value: Out of range

#pragma interrupt_handler int0_isr:2
void int0_isr(void)
{
TCCR1B=0x00;//关断计数器
a=TCNT1H;
b=TCNT1L;
i++;
j++;
timer1_init();
TCCR1B = 0x02; //start Timer 八分子一分频开启计数器工作模式为普通模式
}

#pragma interrupt_handler int1_isr:3//external interupt on INT1
void int1_isr(void)//外部中断1子程序
{
TCCR1B=0x00;//关断计数器
a=TCNT1H;b=TCNT1L;
i++;j++;
timer1_init();
TCCR1B = 0x02; //start Timer 八分子一分频开启计数器工作模式为普通模式
}

//call this routine to initialize all peripherals
void init_devices(void)
{
//stop errant interrupts until set up
CLI(); //disable all interrupts
XDIV = 0x00; //xtal divider
XMCRA = 0x00; //external memory
timer1_init();
EICRA = 0x0E; //extended ext ints 开外部中断并且0为下降沿有效，1为上升沿有效
EICRB = 0x00; //extended ext ints
EIMSK = 0x03;//中断0 1 使能。
TIMSK = 0x40; //timer interrupt sources 定时器溢出中断使能。
SEI(); //re-enable interrupts
//all peripherals are now initialized
}
void delay_1s(unsigned int k)/////////////////// 发射子程序
{
unsigned int m,n;
for(m=0;m<k;m++)
{for(n=0;n<1000;n++);}
}
int main(void)
{
init_devices();//设备初始化
while(TIFR==0X00)
{
}
EIMSK = 0x00;//关中断01中断使能
delay_1s(1000);
delay_1s(1000);delay_1s(1000);delay_1s(1000);delay_1s(1000);
DDRA=0X01;//灯亮，学习完成
PORTA=0X01;
CLI();
delay_1s(1000);
DDRA=0X00;
PORTA=0X00;
TCCR3B = 0x00;
TCCR0 = 0x00;//关定时器0,1
k=j;//红外信号位数
j=1;
DDRA=0X02;//红外发射口置0
PORTA=0X00;
TCNT3H=~a[j];
TCNT3L=~b[j];
TCNT0=242;
ETIMSK=0X04;//定时器3溢出中断使能
TIMSK=0X01;//定时器0溢出中断使能
SEI();
TCCR3B=0x12;
TCCR0=0x02;//开始定时器0,3开始计数
while(j<k)
{}
while(1)//指示灯亮发射完成
{
DDRA=0X04;
PORTA=0X04;
}
}
#pragma interrupt_handler timer0_ovf_isr:17
void timer0_ovf_isr(void)
{
TCNT0 = 242; /*INVALID SETTING*/; //reload counter value13微秒计数
PORTA=~PORTA;
}
#pragma interrupt_handler timer3_ovf_isr:30
void timer3_ovf_isr(void) //TIMER3 has overflow 定时器3溢出中断子程序
{
j++;
TCNT3H =~a[j]; /*INVALID SETTING*/; //reload counter high value
TCNT3L =~b[j]; /*INVALID SETTING*/; //reload counter low value
if(j%2==1)// 奇数数组时候
{ TCCR0=0X02;//开定时器0
}
if(j%2==0)//偶数数组时候
{
TCCR0=0X00;//关断计数器0
PORTA=0X00;//38k端口保持低电平
}
}