keyd.h~

来自「该设备是一款基于AVR mega16L单片机的电子书阅读器」· H~ 代码 · 共 28 行

/******************************************************************************
 *
 * PC/AT keyboard driver Header file.
 *
 * File:   'keydrv.h'
 * Author: Mike Lombardo
 * Date:   December 6, 2001
 *
******************************************************************************/
#include <mega16.h>
#include <delay.h>
unsigned char edge;        /* 0 = neg.  1 = pos. */
unsigned char bitcount;
void InitializeKeyboard( void );
unsigned char GetKey( void );
unsigned char Decode( unsigned char scancode );
void KeyBoardTimeOut( void );


/*   6 | 5
    4     3
     1  2   

  clock = 5 (green)  PD2
  data = 1 (purple)  PD3
  Vdd = 4 (red)
  GND = 3 (black)	*/