lm3037_1.c

控制带中文字库的LCD显示源码 LM3037. P2数据输出.

#include"REG51.h"
#define Lcd_Bus P2 
unsigned char code  distable[11]={0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x2a};  //*0-9,* 
sbit RS= P1^0; 
sbit RW= P1^1; 
sbit E = P1^2; 
sbit PSB= P1^7; 
sbit K1= P3^2; 

void delay(unsigned int t); //延时                           
void write_com(unsigned char cmdcode); // 写命令到LCD 
void write_data(unsigned char Dispdata); // 写数据到LCD 
void lcdinit(); //初始化LCD屏 
void hzkdis(unsigned char code *s); //字符串函数 
void ceshi();  //文字显示函数           
void delay(unsigned int t)  //延时 
{   
unsigned int i, j;   
for (i=0; i<t; i++)      
for (j=0; j<10; j++)       ; } 

void write_com(unsigned char cmdcode) // 写命令到LCD 
{   
RS=0;   
RW=0;   
E=1;   
Lcd_Bus=cmdcode;   
E=0;   
delay(5); 
} 

void write_data(unsigned char Dispdata) // 写数据到LCD 
{   
RS=1;   
RW=0;   
E=1;   
Lcd_Bus=Dispdata;   
E=0;   
delay(5);  
} 

void lcdinit()   //初始化LCD屏 
{   
delay(20);   
write_com(0x30);   
delay(10);   
write_com(0x30);   
delay(5);   
write_com(0x0c); //开显示，光标闪烁   
delay(10);   
write_com(0x01); //清屏幕   
delay(500);   
write_com(0x06); // 光标移动，显示区不移动   
delay(0); 
} 

void hzkdis(unsigned char code *s) //字符串函数 
{     
while (*s>0)      
{        
write_data(*s);        
s++;     
delay(50);      
} 
} 

void ceshi()  //文字显示函数 
{   
write_com(0x01);   
delay(5);   
write_com(0x83);   
hzkdis("如何写这里");    
} 

main()         //主函数 
{    
unsigned char m=0;    
PSB=1;    
delay(10);    
lcdinit();    
delay(10);    
while (1)      
{      if (K1==0)   
{      m++;   
if (m>=9)      m=0;    
}         

ceshi();     //主函数     
delay(5000);         
write_com(0x01);         
} 
}