LCD1602顯示+仿真

ID:642836 · 發表于 2019-12-11 10:40

#include<reg52.h>
#define LCD_DB  P0
sbit LCD_RS = P2^6;
sbit LCD_RW = P2^5;
sbit LCD_EN = P2^7;
unsigned char Zh1[]="  Dian Zi 1801  ";
unsigned char Zh2[]="  Xue Hao:  18  ";

void Busy()                //檢忙
{
unsigned char sta;
LCD_DB = 0xff;
LCD_RS = 0;
LCD_RW = 1;
do
{
LCD_EN = 1;
sta = LCD_DB;
LCD_EN = 0;
}
while(sta&0x80);
}
void Lcd_Write_Cmd(unsigned char cmd)    //命令
{
Busy();
LCD_RS = 0;
LCD_RW = 0;
LCD_DB = cmd;
LCD_EN = 1;
LCD_EN = 0;
}
void Lcd_Write_Data(unsigned char dat)    //數據
{
Busy();
LCD_RS = 1;
LCD_RW = 0;
LCD_DB = dat;
LCD_EN = 1;
LCD_EN = 0;
}
void InitLcd()                         //初始化
{
Lcd_Write_Cmd(0x38);
Lcd_Write_Cmd(0x08);
Lcd_Write_Cmd(0x01);
Lcd_Write_Cmd(0x06);
Lcd_Write_Cmd(0x0c);
}
void LcdSetCursor(unsigned char x,unsigned char y) //坐標
{
unsigned char addr;
if(y == 0)
      addr = 0x00 + x;
else
      addr = 0x40 + x;

Lcd_Write_Cmd(addr|0X80);
}
void LcdShowStr(unsigned char x,unsigned char y,unsigned char *s)  //字符串
{
LcdSetCursor(x,y);
while(*s)
{
      Lcd_Write_Data(*s);
      s++;
}
}

void main(void)
{
P1=0xf0;
InitLcd();
LcdShowStr(0,0,Zh1);
LcdShowStr(0,1,Zh2);
while(1);
}

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LCD1602顯示+仿真