/**************************************************
实验名称：12864LCD实验一
实验目的：在12864第一行显示"今天的日期是"，第二行
显示"2015年"，第三行显示"1月30日"，第四行
显示"星期五"
实验备注：
**************************************************/
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit DUAN = P2^6;
sbit WEI = P2^7;
sbit LCDEN = P3^4;
sbit LCDRS = P3^5;
sbit LCDRW = P3^6;
sbit LCDPSB = P3^7;
uchar code line_0[]=
"今天的日期是";
uchar code line_1[]=
"2015年";
uchar code line_2[]=
"01月30日";
uchar code line_3[]=
"星期五";
void delay_1ms(uchar);
void lcd_init();
void lcd_pos(uchar, uchar);
void lcd_com(uchar);
void lcd_dat(uchar);
void main()
{
uchar i;
lcd_init();
lcd_pos(0,0);
for(i = 0; line_0[i] != '\0'; i++)
{
lcd_dat(line_0[i]);
}
lcd_pos(1,0);
for(i = 0; line_1[i] != '\0'; i++)
{
lcd_dat(line_1[i]);
}
lcd_pos(2,0);
for(i = 0; line_2[i] != '\0'; i++)
{
lcd_dat(line_2[i]);
}
lcd_pos(3,0);
for(i = 0; line_3[i] != '\0'; i++)
{
lcd_dat(line_3[i]);
}
while(1);
}
void delay_1ms(uchar x)
{
uchar i, j;
for(i = 0; i < x; i++)
for(j = 0; j < 110; j++);
}
void lcd_init()
{
DUAN = 0;
WEI = 0;
LCDPSB = 1;
LCDRW = 0;
LCDEN = 0;
lcd_com(0x30);
lcd_com(0x0e);
lcd_com(0x02);
lcd_com(0x01);
}
void lcd_pos(uchar i, uchar j)
{
uchar temp;
switch(i)
{
case 0:
temp = 0x80 + j;
break;
case 1:
temp = 0x90 + j;
break;
case 2:
temp = 0x88 + j;
break;
case 3:
temp = 0x98 + j;
}
lcd_com(temp);
}
void lcd_com(uchar x)
{
LCDEN = 0;
LCDRS = 0;
P0 = x;
delay_1ms(5);
LCDEN = 1;
delay_1ms(5);
LCDEN = 0;
}
void lcd_dat(uchar x)
{
LCDEN = 0;
LCDRS = 1;
P0 = x;
delay_1ms(5);
LCDEN = 1;
delay_1ms(5);
LCDEN = 0;
}
