HCTL2016解码芯片的C语言程序

/*该项目实现了使用单片机AT89S52操作解码芯片HCTL2016,对角度编码器进行读数,最后在LCD1602A上显示角度.
关键字:单片机AT89S52 LCD1602A 解码芯片HCTL2016
*/

#include <reg52.H>
#define uchar unsigned char
#define uint  unsigned int
uchar table[]="0123456789";
uchar num;
uint time;
uint val;
uint deg;
long int pn;
long int deg1;
long int deg2;
long int h;
long int l;
long int d;
uchar STH0;
uchar STL0;
sbit lcdrs=P2^0;
sbit lcdrw=P2^1;
sbit lcden=P2^2;

sbit nRST=P3^4;
sbit SEL=P3^6;
sbit nOE=P3^5;
sbit clk=P3^3;

void delays(uint x) //延时

{ uint i,j;
  for(i=x;i>0;i--)
    for(j=110;j>0;j--);
}
void write_data(uchar date)  //写数
{ lcdrs=1;
  lcdrw=0;
  delays(1);
  lcden=1;
  P0=date;
  delays(1);
  lcden=0;
}

void write_com(uchar com)  //设置数据存储地址
{ lcdrs=0;
  lcdrw=0;
  delays(1);
  lcden=1;
  P0=com;
  delays(1);
  lcden=0;
}

void init() //准备LCD
{   lcden=0;
 write_com(0x38);       //设置8位格式，2行
 write_com(0x0e);  //整体显示，关光标，不闪烁
 write_com(0x06);   //设定输入方式，增量不移位
 write_com(0x01);    //清除屏幕显示