delay.c

单片机计算器,可计算多位小数点的+-*/.可在lcd上显示

/*+++++++++++++++++++++++++++++++++++++++++++++++++++/
 程序名 ：Delay.c  延时子程序
 入口：
 出口：
+++++++++++++++++++++++++++++++++++++++++++++++++++*/
#include "CPLD.h"

extern void Delay5Ms(void)
 {
    unsigned int i = 5552;
	while(i--);
 }

//长延时
extern void Delay400Ms(void)
 {
	unsigned char i = 5;
	unsigned int j;
	while(i--)
	{
		//j=7269; //400Ms
        j=1817;   //100Ms
		while(j--);
	};
 }