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液晶显示器（LCD）是一种常用的显示屏，在许多电子产品中经常使用它来以文本或图像格式显示信息。LCD用于在其屏幕上显示字母、数字等字符。LCD显示器由8条数据线和3条控制线组成，用于将LCD显示器与8051单片机连接。

考虑使用基于Proteus的模拟LCD与8051单片机的接口是：

如何在LCD显示屏上显示“8051单片机”，案例程序如下：

#include< reg51.h >#define kam P0void lcd_initi();void lcd_dat(unsigned char );void lcd_cmd(unsigned char );void delay();void display(unsigned char *s, unsigned char r)sbit rs=P2^0;sbit rw=P2^1;sbit en=P2^2;void main(){lcd_initi();lcd_cmd(0x80);delay(100);lcd_cmd(0xc0);display("8051单片机",10);while(1);}void display(unsigned char *s, unsigned char r){unsignedint w;for(w=0;w< r;w++){lcd_data(s[w]);}}voidlcd_initi(){lcd_cmd(0x01);delay(100);lcd_cmd(0x38);delay(100);lcd_cmd(0x06);delay(100);lcd_cmd(0x0c);delay(100);}voidlcd_dat(unsigned char dat){kam = dat;rs=1;rw=0;en=1;delay(100);en=0;}}voidlcd_cmd(unsigned char cmd){kam=cmd;rs=0;rw=0;en=1;delay(100);en=0;}void delay( unsigned int n){unsignedint a;for(a=0;a< n;a++);}