ht1621演示c程序.txt

常用液晶模块选型资料及中文数据手册

#include <reg52.h>
#include <intrins.h>
#include <stdio.h>
#include <absacc.h>
#define uchar unsigned char
#define uint unsigned int

//定義HT1261 LCD驅動片命令參數
#define BIAS 0X52
#define RC256 0X30
#define SYSTEN 0X02
#define SYSDIS 0X00
#define LCDON 0X06

//定義HT1261 LCD驅動片的引腳
sbit lc=PSW^0;
sbit lcd_data=P1^0;
sbit lcd_cs=P1^1;
sbit lcd_wr=P1^3;

void lcdint(void)  //初始化HT1621.
{
 lcd_cs=0;
 lcd_wr=1;
 _nop_();
 lcd_wr=0;
 _nop_();
}

void sendb0(uchar id,uchar n)
{
uchar i; 
for(i=0;i<n;i++)
 {
 if(id>=0x80)    
  lcd_data=1; 
 else
  lcd_data=0;
  lcd_wr=1;
  _nop_();
  _nop_();
  lcd_wr=0;
  _nop_();
  _nop_();
  id<<=1;
 }
}
void sendcom(uchar command)
{
 uchar a=0x80,i=4,d=8;
 lcdint();
 sendb0(a,i);
 sendb0(command,d);
 lcd_wr=1;
 lcd_cs=1;
 lcd_data=1;
}
void INT1621(void)               //送命令字
{
 uchar command;
 command=BIAS;             // 1/3 bais . 4 duty
 sendcom(command);
 command=RC256;         //啟動內部256KRC 振蕩器
 sendcom(command);
 command=SYSTEN;       
 sendcom(command);
 command=LCDON;         //開啟LCD
 sendcom(command);
}
//以上程序使能LCD驅動. 

void send1621data()                     
{
 uchar a=0x01,b=0x80,c=0x40,d=0x08;
 uchar j,k;
 lcdint(); 
 sendb0(b,a);
 sendb0(c,d);  //從display buffer RAM 0x0000 開始
 for(j=0;j<16;j++) //        將X1[]數組需要顯示的數据逐個送RAM.
 { 
 k=X1[j];     
 sendb0(k,d);  
 }
    
}

//以上是//往HT1621 display buffer RAM送要顯示數据

main()
{
for(;;)
 {  
 INT1621();  
 send1621data();
                  ...............
                  ...............
                }
}