main.c

这是一个数字电子称的程序

#include <reg51.h>
#include <intrins.h>
#include <absacc.h>
#include "define.h"
#include "zlg.h"
#include "lcd1602.h"
#include "x9c104.h"
#include "max197.h"

uchar Get_uchar();
void main()
{
	uchar keyv;
	uint getnum;
	ulong adv;
	Lcd_Initial();
	Key_Initial();
	R_Initial();
	Set_R(1);
	while(1)
	{
		Lcd_Puts(2,1,"R");
		Lcd_Putint(5,1,3,X9C104_R);
		if(key)
		{
			keyv=Keyscan();
			switch(keyv)
			{
				case 2: Set_R(X9C104_R+1);break;
				case 3: Set_R(X9C104_R-1);break;
				case 15: Set_R(Get_uchar());break;
				default : ;
			}
		}
		adv=0;
		for(getnum=0;getnum<512;getnum++)
		{
			adv+=AD_S_Read(0,0);
		}
		adv=adv>>9;
		adv=((float)adv*ADUNIT0);
		Lcd_Putint(2,0,4,adv);
		Lcd_Puts(7,0,"mv");
	}
}
uchar Get_uchar()
{
	uchar a,b,c;
	Lcd_Clr();
	while(!key);
	a=Keyscan();
	while(!key);
	b=Keyscan();
	while(!key);
	c=Keyscan();
	return (a*100+b*10+c);	
}