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来自「Freescale 系列单片机常用模块与综合系统设计」· 代码 · 共 149 行

/** ###################################################################
**     THIS COMPONENT MODULE IS GENERATED BY THE TOOL. DO NOT MODIFY IT.
**     Filename  : KEY.H
**     Project   : digital_timer
**     Processor : MC9S08JM60CLHE
**     Component : KBI
**     Version   : Component 01.095, Driver 01.20, CPU db: 3.00.046
**     Compiler  : CodeWarrior HCS08 C Compiler
**     Date/Time : 2010-1-11, 19:48
**     Abstract  :
**         This bean "KBI" implements the Freescale Keyboard 
**         Interrupt Module (KBI/KBD) which allows to catch events 
**         on choiced external pins. These pins share one KBI/KBD 
**         interrupt which can be caused by an events on the pins.
**     Settings  :
**         Keyboard                    : KBI 
**         Used pins           
**         Pin 0                       : PTG0_KBIP0
**         Pin 1                       : PTG1_KBIP1
**         Pin 2                       : PTG2_KBIP6
**         Pin 3                       : PTG3_KBIP7
**         Pull resistor               : up
**         Generate interrupt on       : falling
**         Interrupt service           : Enabled
**         Interrupt                   : Vkeyboard
**         Interrupt Priority          : 
**         Enable in init. code        : Yes
**         Events enabled in init.     : Yes
**     Contents  :
**         GetVal  - byte KEY_GetVal(void);
**         SetEdge - byte KEY_SetEdge(byte edge);
**
**     Copyright : 1997 - 2009 Freescale Semiconductor, Inc. All Rights Reserved.
**     
**     http      : www.freescale.com
**     mail      : [e-mail]
** ###################################################################*/

#ifndef __KEY
#define __KEY

/*Include shared modules, which are used for whole project*/
#include "PE_Types.h"
#include "PE_Error.h"
#include "PE_Const.h"
#include "IO_Map.h"

/* MODULE KEY. */

#include "Cpu.h"

/* PUBLISHED CONSTANTS for using together with GetVal method  */
#define KEY_NUM_PIN0          0x01 /* Mask of Pin0 */
#define KEY_NUM_PIN1          0x02 /* Mask of Pin1 */
#define KEY_NUM_PIN2          0x04 /* Mask of Pin2 */
#define KEY_NUM_PIN3          0x08 /* Mask of Pin3 */

/* PUBLISHED CONSTANTS for enabled pins */
#define KEY_PIN_SIGNAL0       0x01  /* Mask of Pin0*/
#define KEY_PIN_SIGNAL1       0x02  /* Mask of Pin1*/
#define KEY_PIN_SIGNAL2       0x04  /* Mask of Pin2*/
#define KEY_PIN_SIGNAL3       0x08  /* Mask of Pin3*/

/* Deprecated */
#define PinSignal0            0x01
#define PinSignal1            0x02
#define PinSignal2            0x04
#define PinSignal3            0x08


void KEY_Init(void);
/*
** ===================================================================
**     Method      :  KEY_Init (component KBI)
**
**     Description :
**         Initializes the associated peripheral(s) and the bean internal 
**         variables. The method is called automatically as a part of the 
**         application initialization code.
**         This method is internal. It is used by Processor Expert only.
** ===================================================================
*/

__interrupt void KEY_Interrupt(void);
/*
** ===================================================================
**     Method      :  KEY_Interrupt (component KBI)
**
**     Description :
**         The method services the interrupt of the selected peripheral(s)
**         and eventually invokes event(s) of the bean.
**         This method is internal. It is used by Processor Expert only.
** ===================================================================
*/

#define KEY_GetVal() \
  ((byte)(PTGD & 0x0F))

/*
** ===================================================================
**     Method      :  KEY_GetVal (component KBI)
**
**     Description :
**         Returns the value of pins
**     Parameters  : None
**     Returns     :
**         ---             - The value of associated pins (bits ordered
**                           according to the bean list of pins)
** ===================================================================
*/

byte KEY_SetEdge(byte edge);
/*
** ===================================================================
**     Method      :  KEY_SetEdge (component KBI)
**
**     Description :
**         Sets the sensitive edge. If all selected pins don't have the
**         same edge setting possibility, the method allows to set only
**         those edges that are common (possible to set for all
**         selected pins).
**     Parameters  :
**         NAME            - DESCRIPTION
**         edge            - Edge type:
**                           0 - falling edge
**                           1 - rising edge
**                           2 - both edges
**                           3 - low level
**                           4 - high level
**     Returns     :
**         ---             - Error code, possible codes:
**                           ERR_OK - OK
**                           ERR_RANGE - Value is out of range
** ===================================================================
*/


/* END KEY. */

#endif /* ifndef __KEY */
/*
** ###################################################################
**
**     This file was created by Processor Expert 3.07 [04.34]
**     for the Freescale HCS08 series of microcontrollers.
**
** ###################################################################
*/