LCD1602液晶屏显示I LOVE YOU

#include <reg52.H>#define uint unsigned int#define uchar unsigned charuchar string1[]={"I LOVE YOU"};uchar string2[]={"FOR EVER！ "};/****delay1ms***//*函数功能：延时1ms参数：count返回类型：无*/void delay1ms(unsigned int count){unsigned int i,j;for(i=0;i<count;i++)for(j=0;j<120;j++);}/***lcd_busy***//*函数功能：判断p0.7口是否为1，为1则为忙参数：无返回类型：p0.7的值***/sbit rs = P2^7;sbit rw = P2^6;sbit en = P2^5;uchar lcd_busy(void){uchar busy;rs=0;rw=1;en=1;delay1ms(1);busy=P0&0x80;delay1ms(1);en=0;return (busy);}/**lcd_write***//*函数功能：向LCD中写数据和命令参数：s＝0 时向lcd写命令     s=1 时向lcd写数据     date 为要向lcd写入的数据返回类型：无***/#define cmd 0#define dat 1void lcd_write(uchar s,uchar date){while (lcd_busy());rs=s;rw=0;en=1;delay1ms(1);P0=date;delay1ms(1);en=0;}/*****lcd_init****//*函数功能：将lcd进行初始化处理参数：无返回类型：无****/void lcd_init(void){lcd_write(cmd,0x38);   //设置16X2显示,5X7点阵,8位数据接口lcd_write(cmd,0x0c); //开显示，不显示光标，无光标闪烁lcd_write(cmd,0x06); //AC累加，屏幕不移动lcd_write(cmd,0x01); //清屏}/***lcd_XY****//***函数功能：实现位置定位参数：X Y的值返回类型：无***/void lcd_xy(uchar x,uchar y){if(y==0)   //表示在第一行显示   lcd_write(cmd,0x80|x);if(y==1) //表示在第二行显示   lcd_write(cmd,0x80|0x40|x);}/**lcd_print***//*****函数功能：显示LCD数据参数：*string返回类型：无***/void lcd_print(uchar *string)   //string 表示要显示的数据{while(*string!='')   {lcd_write(dat,*string);    string++;}}/***lcd_display()***//*函数功能：显示参数：无返回类型:无*/void lcd_display(){lcd_xy(3,0);lcd_print(string1);lcd_xy(4,1);lcd_print(string2);}/****主函数****/void main(){while(lcd_busy());lcd_init();while(1){    lcd_display();}}