delay-2.c

c语言一个子函数实现从1毫秒到1分钟的延时程序

#include<pic.h>
#include<pic1687x.h>



#define  Y_LED	RD1//TRISD1=0;
#define  R_LED	RD0//TRISD0=0;	

			//读寄存器
void Delay1Ms(unsigned char t);



void Delay1Ms(unsigned int t)
{
    unsigned char i;
 	for(;t>0;t--)
	{
		for (i=0;i<10;i++)
		{
			asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");
			asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");
			asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");
			asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");
			asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");
			asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");
			asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");
			asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");
			asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");
			//asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");
		}
	}	

}



/*******main************/

main()
{
		
		   
		
		while(1)
		{
			unsigned char 	i,j,a;
			 
		    unsigned char	a_100,a_10,a_1,b=46,point_1;
		    unsigned char	e=13;
			unsigned int	c;
			TRISD1=0;
			TRISD0=0;
			if(a==0xff)
			{
				Y_LED=0;
				a=0x00;	
			}
			else
			{
				Y_LED=1;
				a=0xff;
			}	
				
			//AD7705_Read();
			Delay1Ms(100);
			Delay1Ms(100);
			Delay1Ms(100);
			Delay1Ms(100);
			Delay1Ms(100);
			Delay1Ms(100);
			Delay1Ms(100);
			Delay1Ms(100);
			Delay1Ms(100);
			Delay1Ms(100);
		

	
		}
}