STC51单片机项目.zip

#include <REGX52.H> sbit LCD_RS=P2^6; sbit LCD_RW=P2^5; sbit LCD_E=P2^7; #define LCD_DataPort P0 void LCD_Delay() //@12.000MHz,延时1us { unsigned char i, j; i = 2; j = 239; do { while (--j); } while (--i); } void LCD_WriteCommand(unsigned char Command) { LCD_RS=0; LCD_RW=0; LCD_DataPort=Command; LCD_E=1; LCD_Delay(); LCD_E=0; LCD_Delay(); } void LCD_WriteData(unsigned char Data) { LCD_RS=1; LCD_RW=0; LCD_DataPort=Data; LCD_E=1; LCD_Delay(); LCD_E=0; LCD_Delay(); } void LCD_Init(void) { LCD_WriteCommand(0x38); LCD_WriteCommand(0x0c); LCD_WriteCommand(0x06); LCD_WriteCommand(0x01); } void LCD_SetCursor(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 ) { /*if(Line==1) { LCD_WriteCommand(0x80|(Column-1)); } else { LCD_WriteCommand(0x80|(Column-1)+0x40); }*/ LCD_SetCursor(Line,Column); LCD_WriteData(Char); } void LCD_ShowString(unsigned char Line,unsigned char Column,unsigned char String[] ) { unsigned char i; if(Line==1) { LCD_WriteCommand(0x80|(Column-1)); } else { LCD_WriteCommand(0x80|(Column-1)+0x40); } for(i=0;String[i]!='\0';i++) { LCD_WriteData(String[i]); } } int LCD_Pow(int X,int Y)//乘方函数 { unsigned char i; int Result=1; for(i=0;i<Y;i++) { Result*=X; } return Result; } void LCD_ShowNum(unsigned char Line,unsigned char Column,unsigned int Num,unsigned char Length) { unsigned char i; LCD_SetCursor(Line,Column); for(i=Length;i>0;i--) { LCD_WriteData(0x30+Num/LCD_Pow(10,i-1)%10);//数字转字符 } } void LCD_ShowSignedNum(unsigned char Line,unsigned char Column,int Num,unsigned char Length) { unsigned char i; unsigned int Num1; LCD_SetCursor(Line,Column); if(Num>=0) { LCD_WriteData('+'); Num1=Num; } else{ LCD_WriteData('-'); Num1=-Num; } for(i=Length;i>0;i--) { LCD_WriteData(0x30+Num1/LCD_Pow(10,i-1)%10);//数字转字符 } } void LCD_ShowHexNum(unsigned char Line,unsigned char Column,unsigned int Num,unsigned char Length) { unsigned char i; unsigned char SingleNum; LCD_SetCursor(Line,Column); for(i=Length;i>0;i--) { SingleNum=Num/LCD_Pow(16,i-1)%16; if(SingleNum<10) { LCD_WriteData('0'+SingleNum); } else { LCD_WriteData('A'+SingleNum-10); } } } void LCD_ShowBinNum(unsigned char Line,unsigned char Column,unsigned int Num,unsigned char Length) { unsigned char i; LCD_SetCursor(Line,Column); for(i=Length;i>0;i--) { LCD_WriteData(0x30+Num/LCD_Pow(2,i-1)%2);//数字转字符 } }