0809+1602.c

0809数模转换模块以及1602显示器模块

#include <REG51.H>
#include "LCD1602.h"


unsigned char TempBuffer[10];
#define uchar unsigned char
#define uchar unsigned char
#define uint  unsigned int
sbit START=P2^4;
sbit OE=P2^5;
sbit EOC=P2^6;
uint data  tvdata;


void IntToStr(unsigned int t, unsigned char *str, unsigned char n) 
{	
   /* unsigned char a[5]; char i, j;                                 	
	a[0]=(t/10000)%10;         //取得整数值到数组         	
	a[1]=(t/1000)%10;                                     	
	a[2]=(t/100)%10;                                      	
	a[3]=(t/10)%10;                                       	
	a[4]=(t/1)%10;*/  
	unsigned char a[5]; char i, j;                                 	
	a[0]=(t/1000)%10;          //取得整数值到数组         	
	a[1]=(t/100)%10;                                   	
	a[2]=(t/10)%10;                                   	
	a[3]='q';  //&v,%u,$t,#s ,#p, 字母Q，显示“。”                                   	
	a[4]=(t/1)%10;                                        	
                                                      
	for(i=0; i<5; i++)         //转成ASCII码              	
		a[i]=a[i]+'0';                                    	
	for(i=0; a[i]=='0' && i<=3; i++);                     	
	for(j=5-n; j<i; j++)       //填充空格                 	
		{ *str=' ';  str++; }                             	
	for(; i<5; i++)                                       	
		{ *str=a[i]; str++; }  //加入有效的数字           	
	*str='\0'; 
} 

void Delay1ms(unsigned int count)
{
	unsigned int i,j;
	for(i=0;i<count;i++)
	for(j=0;j<120;j++);
}

void sentdata(uint data i)
{
	SBUF=i;
	while(TI==0);
	TI=0;
}

void main(void) 
{
  
	LCD_Initial();
	GotoXY(0,0);
	Print("DC vol    BG1TRK");
	GotoXY(0,1);
	Print("      V");

	while(1)
	{     START=1;
          START=0;          //启动转换
          while(EOC==0);
          OE=1;
          tvdata=P1;
          tvdata= tvdata*2;
          OE=0;
    	  sentdata(tvdata);
		  IntToStr(tvdata,&TempBuffer[0],5);
		  GotoXY(0,1);
		  Print(&TempBuffer[0]);
	      Delay1ms(20);
     }
}