scankey.h

LPC23XX USB hid keyboard

#ifndef _SCANKEY_H_
#define _SCANKEY_H_

#define KEY(i) ((IOPIN1&1<<i)>>i)	
#define key1 ((IOPIN1&1<<24)>>24)
#define key2 ((IOPIN1&1<<25)>>25)
#define key3 ((IOPIN1&1<<26)>>26)
#define key4 ((IOPIN1&1<<27)>>27)
#define KEYUP 1
#define KEYDOWN 0
#ifdef SCANKEY
INT32U presskey;
//key1=P1_24 key4=P1_27
BYTE KeyBoardValue[8];
BYTE OldKey;
BYTE KeyCurrent;
BYTE KeyPressFlag;
typedef struct KEY_STATE{
BYTE	state;
BYTE	flag;	
}KEY;
BYTE KeyState;
#else

extern BYTE KeyBoardValue[8];
extern BYTE OldKey;
extern BYTE KeyCurrent;
extern BYTE KeyPressFlag;
extern BYTE KeyState;


extern void KeyInit(void);
extern void ScanKey(void);
 #endif

#endif