51单片机12864液晶显示程序.doc

/*=LCD12864液晶并行驱动程序=程序名称：12864液晶驱动程序(并行模式)=*/#include #define uchar unsigned char#define uint unsigned intuchar t,p;/*引脚定义*/#define RS P1_0 /RS=0为执行指令；RS=1为执行数据；#define RW P1_1 /读写#define E P1_2 /使能#define PSB P1_3 /低电平（串口驱动）；高电平（并口驱动）#define RST P1_4 /LCD复位/*定义数组*/uchar code title = LCD 并行接口测试;uchar code website=qwertyuioopplkjh;uchar code dig=0123456789;uchar code dig2=0,1,2,3,:; /*相关子程序*/void Init_lcd(); /初始化液晶void lcd_busy(); /忙标志查询void delay100us(); /100us延时程序void write(uchar x,uchar Data); /写单字节函数void Show(uchar address,uchar L,uchar STR1);void Show_dig(uchar address,uint number);/*延时子程序*/void delay100(int n)unsigned char i;while(n-)for(i=0;i0x7f);/*写指令或数据*/void write(uchar x,uchar Data)lcd_busy(); /忙查询if(x=0)RS=0;RW=0; /写单字节命令字else if(x=1)RS=1;RW=0; /写单字节数据E=1;P0=Data;E=0;P0=0xff;/*初始化LCD */void Init_lcd(void)delay100(20); /启动等待，等LCM讲入工作状态PSB=1; /并口驱动模式RST=0;delay100(4);RST=1; / 复位LCDwrite(0,0x30); /8 位介面，基本指令集write(0,0x0c); /显示打开，光标关，反白关write(0,0x01); /清屏，将DDRAM的地址计数器归零/*汉字和字符显示,参数入口:Show（地址，显示宽度，汉字数组）*/void Show(uchar address,uchar L,uchar STR1)uchar i;write(0,address);for(i=0;iL;i+)write(1,STR1i);/*纯阿拉伯数字显示，参数入口:Show_dig（地址，数字）*/void Show_dig(uchar address,uint number)uchar shi,ge;shi=number/10;ge=number%10;write(0,address);delay100(20);write(1,digshi);delay100(20);write(1,digge);/*主程序*/void main(void)Init_lcd();TMOD=0X01;TH0=0xdc;TL0=0x00;ET0=1;TR0=1;EA=1;P3_6=0;delay100(30);Show(0x83,4,梁浩); /写数组里的内容write(0,0x0d);delay100(30);Show(0x90,16,电子科技协会会长);delay100(30);Show(0x88,16,TEL; /写英文delay100(30);while(1)Show_dig(0x99,p); /写实