128×64m.txt

128×64M（带字库）型号液晶编程 注意：液晶第15脚接低电平

128×64M（带字库）型号液晶编程
/***************************注意：液晶第15脚接低电平，晶振12M*******************************************/

#include <reg51.h>

#define unchar unsigned char
#define unint unsigned int

sbit CS=P1^0;
sbit SID=P1^1;
sbit SCLK=P1^2;  

unchar character1[]="河海大学常州校区";
unchar character2[]="计算机及信息学院";
unchar character3[]="电子科学与技术系";
unchar character4[]="学生王忠20052416 ";
unchar adress_table[]=
{
 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,//第一行汉字位置
 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,//第二行汉字位置
 0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,//第三行汉字位置
 0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,//第四行汉字位置
};

 

void write_byte(unchar Data)
{
 unchar i,Temp_data;
 for(i=0;i<8;i++)
 {
  Temp_data=Data;
  Temp_data<<=i;
  if(Temp_data&0x80) SID=1;
  else SID=0;
  SCLK=1;
  SCLK=0;
 }
}

void write_command(unchar command)
{
 CS = 1;
 write_byte(0xF8);   //发送S_ID
 write_byte(command&0xF0); //发送H_data
 write_byte((command&0x0F)<<4); //发送L_data
 CS = 0;
}

void write_data(unchar Data)
{
 CS = 1;
 write_byte(0xFA);   //发送S_ID
 write_byte(Data&0xF0); //发送H_data
 write_byte((Data&0x0F)<<4); //发送L_data
 CS = 0;
}

void LCD_Init(void)
{
 write_command(0x30);//功能设置 8位数据，基本指令
 write_command(0x0C); //显示状态 ON，游标OFF，反白OFF
 write_command(0x01); //清除显示
 write_command(0x02); //地址归位
 write_command(0x80); //设置DDRAM地址
}

void display_CGROM(unchar row,unchar column,unchar *p)
{
 while(row<4&&(*p)!='\0')
 {
  while(column<8&&(*p)!='\0')
  {
   write_command(adress_table[row*8+column]);
   write_data(*p++);
   write_data(*p++);
   column++;
  }
  column=0;
  row++;
 }
}

void main()
{
 LCD_Init();
 display_CGROM(0,0,character1);
 display_CGROM(1,0,character2);
 display_CGROM(2,0,character3);
 display_CGROM(3,0,character4);
 while(1);
 }