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#include<reg51.h>
#define uchar unsigned char
#define LCMdata P0
#define Busy 0x80
sbit RS=P1^1;
sbit RW=P3^6;
sbit E=P3^7;
sbit REST=P2^7;
void Display_String(uchar line,uchar *string);
void Wr_Data(uchar wrdata); //寫數(shù)據(jù)
void Wr_Command(uchar wrcommand,busyc); //寫指令
void RDbf(void);//讀忙狀態(tài)
void Lcm_Init(void);//液晶初始化
void Delay5Ms(void);//延時(shí) 5ms
uchar code string_1[] = {"勤創(chuàng)電子有限公司"};
uchar code string_2[] = {"勤創(chuàng)電子歡迎您！"};
uchar code string_3[] = {"0755-29188712 "};
void main(void)
{
Lcm_Init();
Display_String(1,string_1);
Display_String(2,string_3);
Display_String(3,string_2);
Display_String(4,string_3);
while(1);
}
void Display_String(uchar line,uchar *string)//顯示字符串
{
uchar addr,i;
if(line==1)
addr=0x80;
else if(line==2)
addr=0x90;
else if(line==3)
addr=0x88;
else if(line==4)
addr=0x98;
Wr_Command(addr,1);
for(i=0;i<16;i++)
{
Wr_Data(*string++);
}
}
void Wr_Data(uchar wrdata) //寫數(shù)據(jù)
{
RDbf();
RS=1;
RW=0;
E=1;
LCMdata=wrdata;
E=0;
}
void Wr_Command(uchar wrcommand,busyc) //寫指令
{
if(busyc)
RDbf();
RS=0;
RW=0;
E=1;
LCMdata=wrcommand;
E=0;
}
void RDbf(void) //讀忙狀態(tài)
{
while(1)
{
RS=0;
RW=1;
E=0;
LCMdata=0xFF;
E=1;
if((LCMdata&Busy)==0)
break;
}
}
void Lcm_Init(void)
{
Delay5Ms();
REST=1;
REST=0;
REST=1;
Wr_Command(0x30,0);
Delay5Ms();
Wr_Command(0x30,0); //2 次顯示模式設(shè)置，不用判忙
Delay5Ms();
Wr_Command(0x0C,1); //開(kāi)顯示及光標(biāo)設(shè)置
Delay5Ms();
Wr_Command(0x01,1); //顯示清屏
Delay5Ms();
Delay5Ms();
Wr_Command(0x06,1); //顯示光標(biāo)移動(dòng)設(shè)置
Delay5Ms();
}
void Delay5Ms(void) //延時(shí) 5ms
{
unsigned int TempCyc=5552;
while(TempCyc--);
}
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