?? calc.h
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//-----------------------------------------------------------------
// 名稱: 計算器頭文件
//-----------------------------------------------------------------
#define INT8 signed char
#define INT16 signed int
#define INT32 signed long
#define INT8U unsigned char
#define INT16U unsigned int
//可顯示最大字符個數
#define MAX_DISPLAY_char 10
//LCD寄存器地址
#define LCD_CMD_WR 0x00
#define LCD_DATA_WR 0x01
#define LCD_BUSY_RD 0x02
#define LCD_DATA_RD 0x03
//LCD命令地址
#define LCD_CLS 0x01
#define LCD_HOME 0x02
#define LCD_SETMODE 0x04
#define LCD_SETVISIBLE 0x08
#define LCD_SHIFT 0x10
#define LCD_SETFUNCTION 0x20
#define LCD_SETCGADDR 0x40
#define LCD_SETDDADDR 0x80
//LCD使能引腳掩碼
#define E_PIN_MASK 0x04
//-----------------------------------------------------------------
// 函數申明
//-----------------------------------------------------------------
char ScanKeyPad();
char getKeyChar();
void LCD_Initialise();
void Busy_Wait();
void Write_LCD_Command(char cmd);
void Write_LCD_Data(char dat);
void ClearScreen();
void Calc_Show_Result(float f);
void Operator_Process(char op);
void LCD_display(char *buf);
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