本帖最后由 朝朝1 于 2021-1-26 15:44 編輯
#include<reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
#define LCD_data P0
sbit LCD_RS=P1^0;
sbit LCD_RW=P1^1;
sbit LCD_EN=P2^5;
sbit LCD_PSB=P1^3;
sbit dula=P2^0;
sbit wela=P2^1;
sbit cs88=P2^2;
sbit key=P3^4;
void delayms(unsigned int xms)
{
unsigned i,j;
for(i=xms;i>0;i--)
for(j=110;j>0;j--);
}
void cmg88()
{
dula=0;
P0=0x00;
dula=0;
cs88=0x00;
P0=0x00;
}
#define delayNOP();{_nop_();_nop_();_nop_();_nop_();};
uchar IRDIS[2] ;
uchar IRCOM[4] ;
void delay0 (uchar x); //x*0.14MS
void beep();
void dataconv() ;
void lcd_pos(uchar X,uchar Y);
void delay(int ms)
{
while (ms--)
{
uchar i;
for (i=0;i<250;i++)
{
_nop_();
_nop_();
_nop_();
_nop_();
}
}}
bit lcd_busy()
{
bit result ;
LCD_RS=0;
LCD_RW=1;
LCD_EN=1;
delayNOP();
result = (bit)(P0&0x80);
LCD_EN=0;
return (result) ;
}
void lcd_wcmd(uchar cmd)
{
while(lcd_busy()) ;
LCD_RS=0;
LCD_RW=0;
LCD_EN=0;
_nop_();
_nop_();
P0=cmd;
delayNOP ()
LCD_EN=1;
delayNOP ()
LCD_EN=0;
}
void lcd_wdat(uchar dat)
{
while(lcd_busy()) ;
LCD_RS=1;
LCD_RW = 0;
LCD_EN=0;
P0=dat;
delayNOP () ;
LCD_EN=1;
delayNOP ();
LCD_EN=0;
}
void gotoxy(unsigned char y, unsigned char x,uchar *str)
{
if(y==1)
lcd_wcmd(0x80|x);
if(y==2)
lcd_wcmd(0x90|x);
if(y==3)
lcd_wcmd((0x80|x)+8);
if(y==4)
lcd_wcmd((0x90|x)+8);
while(*str!='\0')
{
lcd_wdat(*str);
str++;
}
}
/*
void print(uchar *str)
{
while(*str!='\0')
{
lcd_wdat(*str);
str++;
}
}
*/
void lcd_init()
{
LCD_PSB=1;
lcd_wcmd(0x34) ;
delay(5) ;
lcd_wcmd(0x30) ;
delay(5) ;
lcd_wcmd(0x0c) ;
delay(5) ;
lcd_wcmd(0x01) ;
delay(5) ;
}
main()
{
unsigned char i;
lcd_init();
while(1)
{
//lcd_wcmd(0x80+7);
//lcd_wdat('0'+i);
//delayms(5);
//if(key==0)
//{
//delayms(5);
// if(key==0)
// i=3;
// while(!key);
// }
gotoxy(3,0,"考研路上不孤單");
}
}
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