12864液晶代码(很实用的)

#include#include#include#define uchar unsigned char#define uint unsigned int/*端口定义*/#define LCD_data P0sbit LCD_RS=P35;sbit LCD_RW=P36;sbit LCD_EN=P34;sbit LCD_PSB=P37;uchar dis110;uchar code dis2=XXXXXXXXXXX;uchar code dis3=XXXXXXXX;uchar code dis4=-;void delay_ms(uint x)int i,j;for(j = 0; j x; j+)for(i = 0; i 110; i+);/*写指令数据到LCDRS=L表示DB0-DB7为显示指令数据RW=L表示DB0-DB7数据被write（当E=“H-L”,指令数据被写到IR或DR)E=高脉冲此时DB0-DB7=指令码*/void write_cmd(uchar cmd)LCD_RS=0;LCD_RW=0;LCD_EN=0;P0=cmd;delay_ms(5);LCD_EN=1;delay_ms(5);LCD_EN=0;/*设定显示位置*/void lcd_pos(uchar X, uchar Y)uchar pos;if(X = 0)X = 0x80;else if(X = 1)X = 0x90;else if(X = 2)X = 0x88;else if(X = 3)X = 0x98;pos = X + Y;write_cmd(pos);/显示地址/*写显示数据到LCD*/*RS=H 表示DB0-DB7为显示数据RW=L RW=L,E=H-L,DB0-DB7数据被写到IR或DRE=高脉冲DB0-DB7=显示数据*/void write_dat(uchar dat)LCD_RS=1;LCD_RW=0;LCD_EN=0;P0=dat;delay_ms(5);LCD_EN=1;delay_ms(5);LCD_EN=0;/*随机数发生函数*/void randmaker()uint ran;ran=rand();dis10=ran/10000+0x30;dis11=ran%10000/1000+0x30;dis12=ran%1000/100+0x30;dis13=ran%100/10+0x30;dis14=ran%10+0x30;ran=rand();dis15=ran/10000+0x30;dis16=ran%10000/1000+0x30;dis17=ran%1000/100+0x30;dis18=ran%100/10+0x30;dis19=ran%10+0x30;/*LCD初始化*/void lcd_init()LCD_PSB=1;/并口方式write_cmd(0x30);/基本操作指令delay_ms(5);write_cmd(0x0c);/打开显示，光标关闭delay_ms(5);write_cmd(0x01);/清除LCD显示类容delay_ms(5);/*主程序*/main()uchar i;delay_ms(10);lcd_init();lcd_pos(1,0);i=0;while(dis2i!=0)write_dat(dis2i);i+;lcd_pos(2,0);i=0;while(dis3i!=0)write_dat(dis3i);i+;lcd_pos(3,0);i=0;while(dis4i!=0)write_d