LCD1602功能函数

//仅供参考，调用到主函数需自己添加.h头文件，设置外部可调用。

//有不懂可以评论或私信

//学习自b站江科大自化协,LCD显示浮点数函数为原创
 

#include sbit LCD_RS=P2^4;
sbit LCD_RW=P2^5;
sbit LCD_E=P2^6;
#define LCD_DataPoint P0void LCD_Delay(unsigned int xms)
{unsigned char i, j;while(xms--){i = 2;j = 239;do{while (--j);} while (--i);}
}void LCD_WriteCommand(unsigned char Command) 
{LCD_RS=0;LCD_RW=0;LCD_DataPoint=Command;LCD_E=1;LCD_Delay(1);LCD_E=0;LCD_Delay(1); 
}void LCD_WriteData(unsigned char Data)
{LCD_RS=1;LCD_RW=0;LCD_DataPoint=Data;LCD_E=1;LCD_Delay(1);LCD_E=0;LCD_Delay(1); 
}void LCD_Initial(void)
{LCD_WriteCommand(0x38);      //8point 2line 5*7LCD_WriteCommand(0x0F);      //share open LCD_WriteCommand(0x06);      //ACLCD_WriteCommand(0x01);      //refreshLCD_WriteCommand(0x80|0x0F); //initial share
}void LCD_Location(unsigned char Line,unsigned char Column)
{if(Line==1){LCD_WriteCommand(0x80|(Column-1));}else{LCD_WriteCommand(0x80|(Column-1)+0x40);}
}void LCD_ShowChar(unsigned char Line,unsigned char Column,unsigned char Char)
{LCD_Location(Line,Column);LCD_WriteData(Char);
}void LCD_ShowString(unsigned char Line,unsigned char Column,unsigned char *String)
{unsigned char i;LCD_Location(Line,Column);for(i=0;String[i]!='\0';i++){LCD_WriteData(String[i]);}
}int LCD_Pow(int X,int Y)
{unsigned char i;int result=1;for(i=0;i0;i--){LCD_WriteData(0x30+(Number/(LCD_Pow(10,(i-1))))%10);}
}void LCD_ShowSignedNum(unsigned char Line,unsigned char Column,int Number,unsigned char Length)
{unsigned char i;unsigned int Number1;LCD_Location(Line,Column);if(Number==0){Number1=Number;}else if(Number>0){Number1=Number;}else if(Number<0){LCD_WriteData('-');Number1=-Number;}for(i=Length;i>0;i--){LCD_WriteData(0x30+(Number1/(LCD_Pow(10,(i-1))))%10);}
}void LCD_ShowHexNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length)
{unsigned char i;unsigned char temp;LCD_ShowString(Line,Column,"0x");for(i=Length;i>0;i--){temp=(Number/(LCD_Pow(16,(i-1))))%16;if(temp<10){    LCD_WriteData(0x30+temp);}else{LCD_WriteData(0x37+temp);}}
}void LCD_ShowBinNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length)
{unsigned char i;LCD_Location(Line,Column);LCD_ShowString(Line,Column,"0b");for(i=Length;i>0;i--){LCD_WriteData(0x30+(Number/(LCD_Pow(2,(i-1))))%2);}
}void LCD_ShowFloat(unsigned char Line,unsigned char Column,double Number1,int Number,unsigned char Len1,unsigned char n)
{LCD_ShowNum(Line,Column,Number,Len1);LCD_ShowChar(Line,Column+Len1,'.');Number1 = Number1-Number;Number1*=LCD_Pow(10,n);LCD_ShowNum(Line,Column+Len1+1,(int)Number1,n);
}

本文来自互联网用户投稿，文章观点仅代表作者本人，不代表本站立场，不承担相关法律责任。如若转载，请注明出处。 如若内容造成侵权/违法违规/事实不符，请点击【内容举报】进行投诉反馈！