单片机c51驱动1602A液晶屏的驱动实验.doc

单片机c51驱动1602A液晶屏的驱动实验 - 所需硬件: 1.单片机实验开发板A2.杜邦头插线3.16x2液晶显示字符模块4.STC89C51RC单片机所需软件: 1. Keil C51 V8.08或Keil_uv3 绿色版本2.STC单片机ISP下载编程软件1602A液晶屏连接图C语言源程序/******************************************************************** 1602A液晶屏驱动程序** 晶 振 频 率:11.0592M** 线路-单片机实验开发板A******************************************************************/#include #define uchar unsigned char#define uint unsigned intsbit LCM_E=P3^5; //定义接口sbit LCM_RW=P3^6;sbit LCM_RS=P3^7; #define LCM_Data P1//数据接口void LCM_WriteData(uchar WDLCM);void LCM_WriteCommand(uchar WCLCM,BuysC);uchar LCM_ReadData(void);uchar LCM_ReadStatus(void);void LCM_Init(void);void DisplayOneChar(uchar X, uchar Y, uchar DData);void DisplayListChar(uchar X, uchar Y, uchar code *DData);void Delay5Ms(void);void Delay400Ms(void);uchar code uctech[] = {1602A};uchar code net[] = {};void main(void){Delay400Ms(); //启动等待，等LCM讲入工作状态LCM_Init(); //LCM初始化Delay5Ms(); //延时片刻(可不要)DisplayListChar(6, 1, uctech); DisplayListChar(0, 0, net);LCM_ReadData();//测试用句无意义LCM_Data=255;while(1);}/****************************1602A写数据函数**************************//*函数原型:void LCM_WriteData(uchar WDLCM)/*函数功能:1602A写数据/*输入参数:要写入的数据/*输出参数:无/*调用模块:/*建立时间:2005/11/14/*作者:站长/**********************************************************************/void LCM_WriteData(uchar WDLCM){LCM_ReadStatus(); //检测忙LCM_Data = WDLCM;LCM_RS = 1;LCM_RW = 0;LCM_E = 0; //若晶振速度太高可以在这后加小的延时LCM_E = 0; //延时LCM_E = 1;}/****************************1602A写指令函数**************************//*函数原型:void LCM_WriteCommand(uchar WCLCM,BuysC)/*函数功能:1602A写指令/*输入参数:要写入的指令/*输出参数:无/*调用模块:/*建立时间:2005/11/14/*作者:站长/**********************************************************************/void LCM_WriteCommand(uchar WCLCM,BuysC) //BuysC为0时忽略忙检测{if (BuysC) LCM_ReadStatus(); //根据需要检测忙LCM_Data = WCLCM;LCM_RS = 0;LCM_RW = 0;LCM_E = 0;LCM_E = 0;LCM_E = 1;}/****************************1602A读数据函数**************************//*函数原型:uchar L