1、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 = .52cvoid main(void) Delay400Ms();/启动等待,等LCM讲入工作状态 LCM_Init(
2、);/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/*/ LCM_ReadStatus();/检测忙 LCM_Data = WDLCM;
3、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/延时 LCM_E = 1;/*1602A写指令函数*/void LCM_WriteCommand(uchar WCLCM,BuysC)1602A写指令要写入的指令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;/*1602A读数据函数*/uchar LCM_ReadData(void)1602A读数
4、据1602A返回的数据 LCM_RW = 1; return(LCM_Data);/*1602A读状态函数*/1602A读状态1602A返回的状态uchar LCM_ReadStatus(void) LCM_Data = 0xFF; while (LCM_Data & 0x80);/检测忙信号/*1602A初始化函数*/void LCM_Init(void)1602A初始化 LCM_Data = 0; LCM_WriteCommand(0x38,0);/三次显示模式设置,不检测忙信号 LCM_WriteCommand(0x38,1);/显示模式设置,开始要求每次检测忙信号 LCM_WriteC
5、ommand(0x08,1);/关闭显示 LCM_WriteCommand(0x01,1);/显示清屏 LCM_WriteCommand(0x06,1);/ 显示光标移动设置 LCM_WriteCommand(0x0C,1);/ 显示开及光标设置/*1602A按指定位置显示一个字符函数*/void DisplayOneChar(uchar X, uchar Y, uchar DData)1602A按指定位置显示一个字符X坐标 Y坐标 要显示的字符 Y &= 0x1; X &= 0xF;/限制X不能大于15,Y不能大于1 if (Y) X |= 0x40;/当要显示第二行时地址码+0x40; X
6、 |= 0x80;/ 算出指令码 LCM_WriteCommand(X, 0);/这里不检测忙信号,发送地址码 LCM_WriteData(DData);/*1602A按指定位置显示一串字符函数*/void DisplayListChar(uchar X, uchar Y, uchar code *DData)X坐标 Y坐标 要显示字符串的首地址 uchar ListLength; ListLength = 0; while (DDataListLength0x20)/若到达字串尾则退出 if (X = 0xF)/X坐标应小于0xF DisplayOneChar(X, Y, DDataListLength);/显示单个字符 ListLength+; X+; /*5ms延时函数*/void Delay5Ms(void)5ms延时 unsigned int TempCyc = 5552; while(TempCyc-);/*400ms延时延时函数*/void Delay400Ms(void)400ms延时延时 uchar TempCycA = 5; unsigned int TempCycB; while(TempCycA-) TempCycB=7269; while(TempCycB-); ;1
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