byte1.c

飞思卡尔单片机MC9SDG128B的EEPROM程序

/** ###################################################################
**     THIS BEAN MODULE IS GENERATED BY THE TOOL. DO NOT MODIFY IT.
**     Filename  : Byte1.C
**     Project   : EEPROM
**     Processor : MC9S12DG128BCPV
**     Beantype  : ByteIO
**     Version   : Bean 02.053, Driver 03.07, CPU db: 2.87.280
**     Compiler  : Metrowerks HC12 C Compiler
**     Date/Time : 2008-3-3, 下午 09:51
**     Abstract  :
**         This bean "ByteIO" implements an one-byte input/output.
**         It uses one 8-bit port.
**         Note: This bean is set to work in Input direction only.
**         Methods of this bean are mostly implemented as a macros 
**         (if supported by target langauage and compiler).
**     Settings  :
**         Port name                   : M
**
**         Initial direction           : Input (direction cannot be changed)
**         Initial output value        : 0 = 000H
**         Initial pull option         : down
**
**         8-bit data register         : PTM       [592]
**         8-bit control register      : DDRM      [594]
**
**             ----------------------------------------------------
**                   Bit     |   Pin   |   Name
**             ----------------------------------------------------
**                    0      |    105  |   PM0_RxCAN0
**                    1      |    104  |   PM1_TxCAN0
**                    2      |    103  |   PM2_RxCAN0_MISO0
**                    3      |    102  |   PM3_TxCAN0_SS0
**                    4      |    101  |   PM4_RxCAN0_RxCAN4_MOSI0
**                    5      |    100  |   PM5_TxCAN0_TxCAN4_SCK0
**                    6      |    88   |   PM6_RxCAN4
**                    7      |    87   |   PM7_TxCAN4
**             ----------------------------------------------------
**     Contents  :
**         GetDir - bool Byte1_GetDir(void);
**         GetVal - byte Byte1_GetVal(void);
**         GetBit - bool Byte1_GetBit(byte Bit);
**
**     (c) Copyright UNIS, spol. s r.o. 1997-2005
**     UNIS, spol. s r.o.
**     Jundrovska 33
**     624 00 Brno
**     Czech Republic
**     http      : www.processorexpert.com
**     mail      : [e-mail]
** ###################################################################*/

/* MODULE Byte1. */

#include "Byte1.h"
  /* Including shared modules, which are used in the whole project */
#include "PE_Types.h"
#include "PE_Error.h"
#include "PE_Const.h"
#include "IO_Map.h"
#include "Cpu.h"

#pragma DATA_SEG Byte1_DATA
#pragma CODE_SEG Byte1_CODE
#pragma CONST_SEG Byte1_CONST          /* Constant section for this module */
/*
** ===================================================================
**     Method      :  Byte1_GetMsk (bean ByteIO)
**
**     Description :
**         The method returns a bit mask which corresponds to the 
**         required bit position.
**         This method is internal. It is used by Processor Expert only.
** ===================================================================
*/
static const byte Byte1_Table[8] = {
  1, 2, 4, 8, 16, 32, 64, 128
};                                     /* Table of mask constants */

static byte Byte1_GetMsk (byte PinIndex)
{
  return PinIndex<8 ? Byte1_Table[PinIndex] : 0; /* Check range and return appropriate bit mask */
}

/*
** ===================================================================
**     Method      :  Byte1_GetVal (bean ByteIO)
**
**     Description :
**         This method returns an input value.
**           a) direction = Input  : reads the input value from the
**                                   pins and returns it
**           b) direction = Output : returns the last written value
**         Note: This bean is set to work in Input direction only.
**     Parameters  : None
**     Returns     :
**         ---        - Input value (0 to 255)
** ===================================================================
*/
/*
byte Byte1_GetVal(void)

**  This method is implemented as a macro. See Byte1.h file.  **
*/

/*
** ===================================================================
**     Method      :  Byte1_GetBit (bean ByteIO)
**
**     Description :
**         This method returns the specified bit of the input value.
**           a) direction = Input  : reads the input value from pins
**                                   and returns the specified bit
**           b) direction = Output : returns the specified bit
**                                   of the last written value
**         Note: This bean is set to work in Input direction only.
**     Parameters  :
**         NAME       - DESCRIPTION
**         Bit        - Number of the bit to read (0 to 7)
**     Returns     :
**         ---        - Value of the specified bit (FALSE or TRUE)
**                      FALSE = "0" or "Low", TRUE = "1" or "High"
** ===================================================================
*/
bool Byte1_GetBit(byte Bit)
{
  byte const Mask = Byte1_GetMsk(Bit); /* Temporary variable - bit mask to test */
  return (getReg8(PTM) & Mask) == Mask; /* Test if specified bit of port data register is set */
}

/*
** ===================================================================
**     Method      :  Byte1_GetDir (bean ByteIO)
**
**     Description :
**         This method returns direction of the bean.
**     Parameters  : None
**     Returns     :
**         ---        - Direction of the bean (always FALSE, Input only)
**                      FALSE = Input, TRUE = Output
** ===================================================================
*/
/*
bool Byte1_GetDir(void)

**  This method is implemented as a macro. See Byte1.h file.  **
*/


/* END Byte1. */
/*
** ###################################################################
**
**     This file was created by UNIS Processor Expert 2.96 [03.76]
**     for the Freescale HCS12 series of microcontrollers.
**
** ###################################################################
*/