key.h

用51单片机实现的在屏幕上显视文字,外接一颗MT230OSDIC

#define  Mode_Key  1
#define  Up_Key  2
#define  Down_Key  3
#define  Rotate_Key  4
#define  No_Key 	0
#define  Factory_KEY	5


extern WORD data KeyTime;
extern BYTE xdata AD3Level;
extern BYTE KeyCode,OldKeyCode,KeyRepeat;
extern BYTE idata KeyDelayCount;
extern BYTE data ModePressCount;

/*
extern bit Mode_Key;
extern bit Up_Key;
extern bit Down_Key;
extern bit Rotate_Key;
extern bit No_Key;
*/

#define KADC3_1                              18           
#define KADC3_2                              32       
#define KADC3_3                              43        
#define KADC3_4                              53      

#define KEY_ACC_COUNT 			2

extern void KeyPress();