key.h

用89c54单片机开发的32键扫描键盘程序。

#ifndef _KEY_H
#define _KEY_H

#define INT_P4 4
#define INT_P5 5
#define INT_P6 6
#define INT_P7 7
#define INT_P8 8

#define KEY1  0x01//右//0x01//s6(left)
#define KEY2  0x02//取消0x02//s7(down)
#define KEY3  0x04//无定义//0x04//s8(pagedown)
#define KEY4  0x08//左//0x08//s9
#define KEY5  0x10//无定义//0x10//s10
#define KEY6  0x20//上//0x20//s1(up)
#define KEY7  0x40
#define KEY8  0x80//确认//0x80//s3(pageup)
#define KEY9  0x100//下//0x100//s4(enter)
#define KEY10 0x200//无定义0x200//s5
#define KEY11 0x400
#define KEY12 0x800
#define KEY13 0x1000
#define KEY14 0x2000
#define KEY15 0x4000
#define KEY16 0x8000
#define KEY17 0x10000
#define KEY18 0x20000
#define KEY19 0x40000
#define KEY20 0x80000

void KeyInit();
unsigned char keyproc();

#endif