LCD16024线并口通信源程序.doc

LCD1602 4线并口通信源程序 发布时间:2006年6月23日 点击次数:2720 来源: ??作者: ? LCD 1602采用4线并口通信,连接方式是DB4－DB7接P1.4-P1.7;RS:P2.7;RW:P2.6EN:P2.5;注意初始化的设置。在万利MedWin 3.0开发环境上调试通过！ /*******************************************************************???????????????????????????????????????????????????????????????????????????? /* 模块功能： 显示内容：?? creat by??????????????????????????????????????????????????? /*???????????????????????? fenyman /*???????? LCD1602/*???????? test/*creat by:? ??fenyman/*Date: ???2006-06-21/*Corporation:?SME of Dalian University of Technology/*Version V1.1/*Copyright(C)feyman? 2006-2016/*All rigths reserved?????????????????????????????????????????????? /*******************************************************************/?? #include reg51.h/********************************************************************/#define? LCDIO???? ???P1 sbit LCD1602_RS=P2^7;?? sbit LCD1602_RW=P2^6;?? sbit LCD1602_EN=P2^5;?? /********************************************************************/void LCD_delay(void); void LCD_en_command(unsigned char command); void LCD_en_dat(unsigned char temp); void LCD_set_xy( unsigned char x, unsigned char y ); void LCD_write_char( unsigned x,unsigned char y,unsigned char dat); void LCD_write_string(unsigned char X,unsigned char Y,unsigned char *s); void LCD_init(void); /********************************************************************/ void delay_nms(unsigned int n); /********************************************************************/void main(void){??LCD_init(); ??while(1 )??? ??{?? ??LCD_en_command(0x01); ? ??delay_nms(2); ??????? LCD_write_string(0,0,???? create by??? );??????? LCD_write_string(0,1,???? fenyman????? );??? ??????? delay_nms(200); ??????? LCD_en_command(0x01); ? ??delay_nms(2); ??????? LCD_write_string(0,0,???? LCD1602?? );??????? LCD_write_string(0,1,???? test????? );? ??????? delay_nms(200);????????? ??}}/******************** LCD PART *************************************/void LCD_delay(voi