lab5

#include <reg51.h>

#define SW (~P3 & 0x1f )
#define DBPORT P0
sbit RS=P2^7 ;
sbit RW=P2^6 ;
sbit E=P2^5 ;

                                                            0x99 , 0x92 , 0x82 , 0xf8 ,
                                                            0x80 , 0x90 };

unsigned char code scan[4] = {0xf7 , 0xfb , 0xfd , 0xfe};

void LCD_CMD(char cmd)
{
    char i ;
    DBPORT = cmd ;
    RS = 0;
    RW = 0;
    E  = 1;
    for(i=0; i<40; i++)
    RS = 0;
    RW = 0;
    E  = 0;
}

void LCD_DATA(char data1)
{
    char i;
    DBPORT = data1;
    RS = 1;
    RW = 0;
    E  = 1;
    for(i=0; i<40; i++)
    RS = 1;
    RW = 0;
    E  = 0;
}

void delay1ms(char i)
{
    char m,n;
    for(m=0; m<i; m++)
        for(n=0; n<120; n++)
            ;
}


void debouncer()
{
    delay1ms(20);
}



char mess[]="HELLO KITTY!!";

main()
{
    int i=0 ;
    delay1ms(5);
    LCD_CMD(0x3f);
    LCD_CMD(0x0e);
    LCD_CMD(0x01);
    delay1ms(2);
    LCD_CMD(0x80);

    for(i=0;i<15;i++)
                LCD_DATA(mess[i]);
    while(1);
}