12864液晶测试程序.doc

#include#include#include#define uchar unsigned char#define uint unsigned int#define LCD_data P0 sbit LCD_RS=P35;sbit LCD_RW=P36;sbit LCD_EN=P34;sbit DS18B20_DQ=P27;sbit FM=P20;/蜂鸣器端口 sbit key=P21;uchar code str1= 床前明月光;uchar code str2= 疑似地上霜;uchar code str3= 举头望明月;uchar code str4= 低头思故乡;uchar code str5= 静夜思 ;void delay_1ms(uint z) /普通51单片机1ms延时程序 uint i,j;for(j=0;jz;j+)for(i=0;i110;i+);void write_cmd(uint cmd) delay_1ms(1);LCD_RS=0;LCD_RW=0; /LCD_EN=0;LCD_data=cmd;LCD_EN=1;delay_1ms(1);LCD_EN=0;delay_1ms(1);/*写数据到指令寄存器 */void write_dat(uint dat) delay_1ms(1);LCD_RS=1;LCD_RW=0;LCD_EN=0;LCD_data=dat;LCD_EN=1;delay_1ms(1);LCD_EN=0;delay_1ms(1);/*12864初始化程序 */void Init_12864(void)write_cmd(0x30);/基本指令集设置 delay_1ms(5);write_cmd(0x0c);/整体显示开，游标关闭，游标不显示位置 delay_1ms(5);write_cmd(0x01);/清除显示 delay_1ms(5);/*12864清屏 */void clr_12864()write_cmd(0x01);delay_1ms(1);/*set汉字显示位置 x=0127,y=063*/write_hanzi(uchar x,uchar y,uchar *p)uchar wei,num;num=0;switch(x)case 0:wei=0x80;break;case 1:wei=0x90;break;case 2:wei=0x88;break;case 3:wei=0x98;break;write_cmd(wei+y);while(*(p+num)!=0)write_dat(*(p+num);num+; write_shuzi(uchar x,uchar y,uint temp)uchar bai,shi,ge,xiao;uchar wei,num;num=0;switch(x)case 0:wei=0x80;break;case 1:wei=0x90;break;case 2:wei=0x88;break;case 3:wei=0x98;break;write_cmd(wei+y);bai=temp/1000+0x30;shi=temp/100%10+0x30;ge=temp/10%10+0x30;xiao=temp%10+0x30;write_dat(bai);write_dat(shi);write_dat(ge);write_dat(.);write_dat(xiao);write_hanzi(1,3,str5);/*12864显示字符串 (8*8) */main()I