temperature_measure.c

avr基础程序大全

//包含所需头文件
#include "Com_header.h"

//端口初始化
void port_init(void)
{
	PORTA = 0x00;
	DDRA  = 0x00;
	PORTB = 0x00;
	DDRB  = 0x00;
	PORTC = 0x00;
	DDRC  = 0xff;
	PORTD = 0x00;
	DDRD  = 0x00;
}

void init_devices(void)
{
	cli(); //禁止所有中断
	MCUCR  = 0x00;
	MCUCSR = 0x80;//禁止JTAG
	GICR   = 0x00;
	port_init();
	usart_init();
	timer2_init();
	sei();//开全局中断
}
//主函数
int main(void)
{
	init_devices();
	fdevopen(uart_putchar,usart_getchar,0);

	while(1)
	{
//		Get_Temperature(); 
//		gettemp();		
//		printf_P(PSTR("WenDu : %ld\n"),WenDu);	 
		PORTC^= 0xff;	 	
		NOP();
	}
	return 0;
}


SIGNAL(SIG_OVERFLOW2)
{
	TCCR2  = 0x00;//停止定时器
	Get_Temperature();
}