2019年11月28日 | ATmega32单片机定时器程序

ATmega32的有三个定时器，T0和T2是8位的，T1是16位的，各自提供了很多功能

都是以前用studio写的，那时还没用iar

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//定时器0溢出中断

//CPU:mega32

//编译器：winavr

#include

#include

int main(void)

{

DDRC |= (1 << 7);//PC7置为输出

TIMSK |= 1<TCCR0 |= (1 << CS02) |(0 << CS01) | (1 << CS00);//1024分频

sei();//使能全局中断

while(1);

}

SIGNAL(SIG_OVERFLOW0)//TIMER0 溢出中断服务程序

{

PORTC ^= 1<<7;//PC7取反

}

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//定时器0普通匹配模式中断

//CPU:mega32

//编译器：winavr

#include

#include

int main(void)

{

DDRC |= (1 << 7);//PC7置为输出

TIMSK |= 1<OCR0 = 0X10;//匹配值

TCCR0 |= (1 << CS02) |(0 << CS01) | (1 << CS00);//1024分频

sei();//使能全局中断

while(1);

}

SIGNAL(SIG_OUTPUT_COMPARE0)//TIMER0 匹配中断服务程序

{

TCNT0 = 0;//计数值清0

PORTC ^= 1<<7;//PC7取反

}

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//定时器0匹配时清零模式(CTC)中断

//CPU:mega32

//编译器：winavr

#include

#include

int main(void)

{

DDRC |= (1 << 7);//PC7置为输出

DDRB |= (1 << 3);//PC7置为输出

TIMSK |= 1<OCR0 = 0X10;//匹配值

TCCR0 |= (1 << WGM01) | (0 << WGM00) | (1 << CS02) | (0 << CS01) | (1 << CS00);//CTC模式，1024分频

sei();//使能全局中断

while(1);

}

SIGNAL(SIG_OUTPUT_COMPARE0)//TIMER0 匹配中断服务程序

{

PORTC ^= 1<<7;//PC7取反

}

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//定时器0输出正弦波

//CPU:mega32

//编译器：winavr

#include

#include

const char sindata[128] = {128,134,140,147,153,159,165,171,177,182,188,

193,199,204,209,213, 218,222,226,230,234,237,240,243,245,248,250,251,253,254,

254,255, 255,255,254,254,253,251,250,248,245,243,240,237,234,230,226,222, 218,

213,209,204,199,193,188,182,177,171,165,159,153,147,140,134, 128,122,116,109,

103,97,91,85,79,74,68,63,57,52,47,43, 38,34,30,26,22,19,16,13,11,8,6,5,3,2,2,1,

1,1,2,2,3,5,6,8,11,13,16,19,22,26,30,34, 38,43,47,52,57,63,68,74,79,85,91,97,

103,109,116,122};

unsigned char x=0;

int main(void)

{

DDRB |= (1 << 3);//PB3  (OC0)  置为输出

TIMSK |= 1<TCCR0 |= (1 << WGM01) | (1 << WGM00) | (1 << COM01) | (0 << COM00) |(0 << CS02) | (0 << CS01) | (1 << CS00);//CTC模式，“高低”占空比，不分频

sei();//使能全局中断

while(1);

}

SIGNAL(SIG_OUTPUT_COMPARE0)//TIMER0 匹配中断服务程序

{

OCR0 = sindata[x];

if( ++x > 127 ) x=0;

}

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//定时器1捕捉中断

//CPU:mega32

//编译器：winavr

#include

#include

int main(void)

{

TIMSK |= 1<TCCR1A |= (0<TCCR1B |= (0<sei();//使能全局中断

while(1);

}

SIGNAL(SIG_INPUT_CAPTURE1)//TIMER1 捕捉中断服务程序

{

//……

}

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//定时器1溢出中断

//CPU:mega32

//编译器：winavr

#include

#include

int main(void)

{

DDRC |= (1 << 7);//PC7置为输出

TIMSK |= 1<TCCR1A |= (0<TCCR1B |= (0<sei();//使能全局中断

while(1);

}

SIGNAL(SIG_OVERFLOW1)//TIMER1 溢出中断服务程序

{

TCNT1H = 0X99;//先写高位，后写低位

TCNT1L = 0X88;

PORTC ^= 1<<7;//PC7取反

}

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//定时器测频率  

//定时器1计数，定时器2定时

//CPU:mega32

//编译器：winavr

#include

#include

#define F 1000000

int main(void)

{

DDRC |= (1 << 7);//PC7置为输出

TIMSK |= 1<OCR2 = 0.1  *F/1024;//定时0.1s

TCCR2 |= (1 << WGM01) | (0 << WGM00) | (1 << CS02) | (1 << CS01) | (1 << CS00);//CTC模式，1024分频

sei();//使能全局中断

TCCR1A |= (0<TCCR1B |= (0<

while(1);

}

SIGNAL(SIG_OUTPUT_COMPARE2)//TIMER2 匹配中断服务程序

{

PORTC ^= 1<<7;//PC7取反

TCNT1H = 0;

TCNT1L = 0;

}

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//定时器测1捕捉中断

//可以测周期用 

//CPU:mega32

//编译器：winavr

#include

#include

int main(void)

{

TIMSK |= 1<TCCR1A |= (0<TCCR1B |= (0<sei();//使能全局中断

while(1);

}

SIGNAL(SIG_INPUT_CAPTURE1)//TIMER1 捕捉中断服务程序

{

TCNT1H = 0;

TCNT1L = 0;

}

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