HT1621B段码 LCD屏驱动 51单片机驱动程序

逻辑图

左边三段数字是温度显示右边两位是湿度

下面是完整的程序（io口模拟spi发送数据写给ram）个人理解水平有限

头文件 lcd.h

#ifndef __LCD__H__
#define __LCD__H__
#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint  unsigned int
#define NOP   _nop_();_nop_();_nop_();_nop_();_nop_();_nop_()



sbit DATA=P1^0;
sbit W_R=P1^1;
sbit CS=P1^3;
/*************************/
uchar num_data[];
//char flag;
char cache[];
void initial();
void Write_Bits(uchar buffer,uchar i);
void tran_data(uchar *p);
void wave();
void delay(uchar);

void witre_clear();

void write_data_by_8bit(uchar num,uchar ad); 
void Write_Temperature(uint t,uchar p1,uchar t46);//温度显示
void Write_Humidity(uint h ,uchar t3);//湿度显示
void Write_Mode(uchar a,uchar m);//AUTO//Manual 模式
void Write_Wifi(uchar h);//wifi显示
void Write_Water(uchar w);//缺水显示
void Write_Level(uchar s7,uchar s14,uchar s21); //风力档位
void Show_cache();//将显存写入HT1621的ram



#endif

源文件

#include<reg51.h>
#include<intrins.h>
#include"lcd.h"

uchar num_data[]={0xf5,0x05,0xb6,0x97,0x47,0xd3,0xf3,0x85,0xf7,0xd7};//0到9的字库
char cache[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};///显存数组				
char flag=1	;							
void initial()
{
  CS=0;
  DATA=1;   wave();	  //command mode命令模式 配置HT1621
  DATA=0;   wave();	 
  DATA=0;   wave();
	Write_Bits(0x18, 8);//RC 256K
	Write_Bits(0x00, 8);
	Write_Bits(0x01, 8);//turn on system oscilator 
	Write_Bits(0x03, 8);//turn on bias generator
	Write_Bits(0x29, 8);//1/3  bias 4 commons//    1/2 bias 3 commons//0x04
//  tran_inst(0xe0);   	//turn on lcd output
		CS=1;
  
}

void write_data_by_8bit(uchar p,uchar ad)
{	
	unsigned char  i,address=((ad*2)<<2);///对应ram地址 两个4位一写
	
	CS=0;
	DATA=1;wave();//数据模式
	DATA=0;wave();
	DATA=1;wave();

	for(i=0;i<6;i++)////6位地址    
	{  
		DATA=((address&0x80)==0x80);
		wave();
		address<<=1;	
	}

	Write_Bits(p,8);
//delay(4);
	CS= 1;
}


void Write_Bits(uchar buffer,uchar j)	//按j位写数据
{			
		uchar i;
		for(i=0;i<j;i++)
     {
              DATA=((buffer&0x80)==0x80);
							wave();
              buffer<<=1;
     }
//	DATA=0;
// wave();		            
  W_R=1;		 
 }


void delay(uchar time)	   //延时 50*time ms
{
 uchar i;
 TMOD=0x01;
 TH0=(65536-50000)/256;
 TL0=(65536-50000)%256; 
 TR0=1;  
 for(i=0;i<time;i++)
  {
    while(~TF0) ;  
	TF0=0;
	TH0=(65536-50000)/256;
	TL0=(65536-50000)%256;  		  
  }
}

void wave()		  // generate a waveform 模拟clk
{
  W_R=0;  NOP;
  W_R=1;  NOP;
  W_R=0;  NOP;  
}
void witre_clear() //清cache
{
		uchar j;
		for(j=0;j<10;j++) 
		{
			cache[j]=0x00;
		}
		
}
void Write_Temperature(uint t,uchar p1,uchar t46)//3位温度数据写到cache  p1 为小数点 0 1亮灭 /////t46 1 ℃摄氏度   2℉华氏度 0灭
{
	unsigned char a0,a1,a2;
	a2=(t/100)%10;//////百位
	a1=(t/10)%10;///////十位
	a0=t%10;////////////个位
	cache[2]=num_data[a0];
	cache[1]=num_data[a1];
	cache[0]=num_data[a2];
	
	if(p1==1)
	cache[1]=cache[1]|(1<<3);
	else
	cache[1]=cache[1]&~(1<<3);
	
	if(t46==1)
	{
		flag=1;//解决T6被湿度覆盖
		cache[2]=cache[2]|(1<<3);	//T4
		cache[3]=cache[3]|(1<<3); //T6
		cache[0]=cache[0]&~(1<<3);//T5
		
	}
	else if(t46==2)
	{
		flag=0;//

                cache[2]=cache[2]|(1<<3);

		cache[3]=cache[3]&~(1<<3);
		cache[0]=cache[0]|(1<<3);
		
	}
	
	else
	{
		flag=0;
		cache[2]=cache[2]&~(1<<3);
		cache[3]=cache[3]&~(1<<3);
		cache[0]=cache[0]&~(1<<3);
	
	}
	
	

}

void Write_Humidity(uint h,uchar t3)//写两位湿度  T3 %
{
	unsigned char a0,a1;
	a1=(h/10)%10;///////
	a0=h%10;////////////
	if(flag)
	cache[3]=num_data[a1]|(1<<3);
	else
	cache[3]=num_data[a1]&~(1<<3);	
	cache[4]=num_data[a0];
	if(t3==1)
	cache[4]=cache[4]|(1<<3);
	else
	cache[4]=cache[4]&~(1<<3);
		
}

void Write_Mode(uchar a,uchar m)//

	if(a==1)
	cache[5]=cache[5]|(1<<6);
	else
	cache[5]=cache[5]&~(1<<6);
	
	if(m==1)
	cache[5]=cache[5]|(1<<7);
	else
	cache[5]=cache[5]&~(1<<7);
		
}

void Write_Wifi(uchar h);//


void Write_Water(uchar w)//
{
	if(w==1)
	cache[7]=cache[7]|(1<<3);
	else
	cache[7]=cache[7]&~(1<<3);
}

void Write_Level(uchar s7,uchar s14,uchar s21)//S7/S14/S21 第几个叶子代表档位  1单叶  2双叶 0:灭 单页和双叶循环转动
{
	if(s7==1){
	cache[7]=cache[7]|(1<<1);
	cache[7]=cache[7]|(1<<2);
	cache[7]=cache[7]|(1<<4);
	cache[7]=cache[7]|(1<<6);
	cache[7]=cache[7]&~(1<<0);
	cache[7]=cache[7]&~(1<<5);
	cache[7]=cache[7]&~(1<<7);
	}
	else if(s7==2){
	cache[7]=cache[7]|(1<<1);
	cache[7]=cache[7]|(1<<0);
	cache[7]=cache[7]|(1<<5);
	cache[7]=cache[7]|(1<<7);
	cache[7]=cache[7]&~(1<<2);
	cache[7]=cache[7]&~(1<<4);
	cache[7]=cache[7]&~(1<<6);
	}
	else{
	cache[7]=cache[7]&~(1<<1);
	cache[7]=cache[7]&~(1<<2);
	cache[7]=cache[7]&~(1<<0);
	cache[7]=cache[7]&~(1<<4);
	cache[7]=cache[7]&~(1<<5);
	cache[7]=cache[7]&~(1<<6);
	cache[7]=cache[7]&~(1<<7);
	}
//////////////////////////////	
	if(s14==1){
	cache[6]=cache[6]|(1<<1);
	cache[6]=cache[6]|(1<<2);
	cache[6]=cache[6]|(1<<4);
	cache[6]=cache[6]|(1<<6);
	cache[6]=cache[6]&~(1<<0);
	cache[6]=cache[6]&~(1<<5);
	cache[6]=cache[6]&~(1<<3);
	}
	else if(s14==2){
	cache[6]=cache[6]|(1<<1);
	cache[6]=cache[6]|(1<<0);
	cache[6]=cache[6]|(1<<5);
	cache[6]=cache[6]|(1<<3);
	cache[6]=cache[6]&~(1<<2);
	cache[6]=cache[6]&~(1<<4);
	cache[6]=cache[6]&~(1<<6);
	}
	else{
	cache[6]=cache[6]&~(1<<1);
	cache[6]=cache[6]&~(1<<2);
	cache[6]=cache[6]&~(1<<0);
	cache[6]=cache[6]&~(1<<4);
	cache[6]=cache[6]&~(1<<5);
	cache[6]=cache[6]&~(1<<6);
	cache[6]=cache[6]&~(1<<3);
	}
/////////////////////////////////////
	if(s21==1){
	cache[5]=cache[5]|(1<<2);
	cache[5]=cache[5]|(1<<4);
	cache[5]=cache[5]|(1<<1);
	cache[6]=cache[6]|(1<<7);//
	cache[5]=cache[5]&~(1<<0);
	cache[5]=cache[5]&~(1<<5);
	cache[5]=cache[5]&~(1<<3);
	}
	else if(s21==2){
	cache[5]=cache[5]|(1<<2);
	cache[5]=cache[5]&~(1<<4);
	cache[5]=cache[5]&~(1<<1);
	cache[6]=cache[6]&~(1<<7);//
	cache[5]=cache[5]|(1<<0);
	cache[5]=cache[5]|(1<<5);
	cache[5]=cache[5]|(1<<3);
	}
	else{
	cache[5]=cache[5]&~(1<<2);
	cache[5]=cache[5]&~(1<<4);
	cache[5]=cache[5]&~(1<<1);
	cache[6]=cache[6]&~(1<<7);//
	cache[5]=cache[5]&~(1<<0);
	cache[5]=cache[5]&~(1<<5);
	cache[5]=cache[5]&~(1<<3);
	}
	
}

void Show_cache()
{	
	unsigned int j;
	for(j=0;j<8;j++) 
	{
		write_data_by_8bit(cache[j], j);
	}	
}

main.c

#include<reg51.h>
#include<intrins.h>
#include"lcd.h"






void main()
{
   unsigned long  h=0,i=0;
	 CS=1;
	 W_R=0;
	 initial();//³õÊ¼»¯ ÉèÖÃlcd
	 witre_clear();   
	 while(1)
	 { 		  			 
		
			i++;h++;	  
																					 
			Write_Temperature(i,1,1);//
			Write_Humidity(h,1);//***********//
			Write_Mode(0,0);
			Write_Water(1);
			Write_Level(1,1,1);
			if(i>=1000) i=0;
			if(h>=100) h=0;
			Show_cache();
			delay(10);//500ms
		 
			Write_Temperature(i,1,2);
			Write_Humidity(h,0);
			Write_Mode(1,1);
			Write_Water(0);
			Write_Level(2,2,2);
			Show_cache();
			delay(10);
	 }
}

HT1621B段码 LCD屏驱动 51单片机驱动程序

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