1602.c

1602.rar

#include <reg51.h>
#include <intrins.h>
sbit rs= P2^0;
sbit rw = P2^1;
sbit ep = P2^2;
unsigned char code dis1[] = {"XianZaiShiDuShi_"};
unsigned char code dis2[] = {"Cross Fire 205"};
void delay(unsigned char ms)
{
unsigned char i;
while(ms--)
{
for(i = 0; i< 250; i++)
{
_nop_();
_nop_();
_nop_();
_nop_();
}
}
}
bit lcd_bz()
{
bit result;
rs = 0;
rw = 1;
ep = 1;
_nop_();
_nop_();
_nop_();
_nop_();
result = (bit)(P0 & 0x80);
ep = 0;
return result;
}
void lcd_wcmd(unsigned char cmd)
{
while(lcd_bz());//判断LCD是否忙碌
rs = 0;
rw = 0;
ep = 0;
_nop_();
_nop_();
P0 = cmd;
_nop_();
_nop_();
_nop_();
_nop_();
ep = 1;
_nop_();
_nop_();
_nop_();
_nop_();
ep = 0;
}
void lcd_pos(unsigned char pos)
{
lcd_wcmd(pos | 0x80);
}
void lcd_wdat(unsigned char dat)
{
while(lcd_bz());//判断LCD是否忙碌
rs = 1;
rw = 0;
ep = 0;
P0 = dat;
_nop_();
_nop_();
_nop_();
_nop_();
ep = 1;
_nop_();
_nop_();
_nop_();
_nop_();
ep = 0;
}
void lcd_init()
{
lcd_wcmd(0x38);
delay(1);
lcd_wcmd(0x0c);
delay(1);
lcd_wcmd(0x06);
delay(1);
lcd_wcmd(0x01);
delay(1);
}
void main(void)
{
unsigned char i;
lcd_init();// 初始化LCD
delay(10);
    while(1)
    {
    lcd_pos(0x00);//设置显示位置
    i = 0;
    while(dis1[i] != '\0')
    {
    lcd_wdat(dis1[i]);//显示字符
    i++;
    }
    lcd_pos(0x41);// 设置显示位置
    i = 0;
    while(dis2[i] != '\0')
    {
    lcd_wdat(dis2[i]);// 显示字符
    i++;
    }
    }
}