eeprom_at25.h

实现快速傅立叶变换算法,provides test framwork for FFT testing

#ifndef CYGONCE_DEVS_EEPROM_AT25_H
#define CYGONCE_DEVS_EEPROM_AT25_H
//==========================================================================
//
//      eeprom_at25.h
//
//      EEPROM AT25 defines
//
//==========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):     WangLei 
// Date:          2007-05-23
//
//####DESCRIPTIONEND####
//
//==========================================================================

//---------------------------------------------------------------------------
// const defines
//---------------------------------------------------------------------------
// EEPROM cmd
#define EEPROM_CMD_WRSR         0x1 	// Write status register
#define EEPROM_CMD_WRITE        0x2		// Write data to memeory array beginning at 
		 					            // selected adress
#define EEPROM_CMD_READ         0x3	    // Read data from memeory array beginning at
							            // selected adress
#define EEPROM_CMD_WRDI         0x4		// Reset the write enable latch 
							            // (disable write operations)
#define EEPROM_CMD_RDSR         0x5		// Read status register
#define EEPROM_CMD_WREN         0x6		// Set the write enable latch
							            // (enable write operations)
#define EEPROM_CMD_DUMMY        0x00    // DUMMY byte

#define EEPROM_WIPBIT           0x0		// Write in process

// EEPROM features
#define EEPROM_PAGE_SIZE        64

// EEPROM status:
#define EEPROM_STATUS_WRITTING  0x01    //EEPROM write cycle is in process
#define EEPROM_STATUS_WEN       0x02    //EEPROM Write Enabled
#define EEPROM_STATUS_BP_MSK    0x0C    //Block Protection mask
#define EEPROM_STATUS_WPEN      0x80    //Write Protect enable

// EEPROM TIMEOUT
#define EEPROM_BUSY_TIMEOUT     500
#define EEPROM_WEN_TIMEOUT      500

//---------------------------------------------------------------------------
// types
//---------------------------------------------------------------------------

//---------------------------------------------------------------------------
// function prototypes
//---------------------------------------------------------------------------


#endif // CYGONCE_DEVS_EEPROM_AT25_H 

//-----------------------------------------------------------------------------
// End of eeprom_at25.h