SST39VF040.h

/* Revision: 3.3.8 */
 
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/*------------------------------------------------------------------------------
 * EFFS-STD configuration file for SST39V040 flash memory chip.  This file is part
 * of an example that allocates 64KB of flash space to the file system, and the
 * rest to the application.
 *
 * To modify the amount of space allocated to the file system:
 *
 * 1. Change the definition in this file:  #define FS_SIZE ( 64 * 1024 )
 * 2. Change the compcode memory address range for the application in your
 *    NBEclipse project settings so that the end of the application space does
 *    not exceed the start of the file system space.  See the EFFS Programmer's
 *    Guide for details, and the header comments in main.cpp of this example
 *    on how to make the changes in the NBEclipse project.
 * 3. Be sure to add the /nburn/platform/<platform>/original/lib/libStdFFile.a library
 *    to your NBEclipse project C/C++ build linker library options.  See the header
 *    comments in main.cpp for this example on how to add the library in the
 *    NBEclipse project.
 *----------------------------------------------------------------------------*/
 
#ifndef _ONCHIPFLASH_H_
#define _ONCHIPFLASH_H_
 
#include "basictypes.h"
#include "hal.h"
#include "file/fsf.h"
 
extern int fs_phy_OnChipFlash(FS_FLASH *flash);
 
#define FLASH_NAME "SST39VF040"
 
#define FS_FLASHBASE (0xFFC00000)
 
#define BLOCKSIZE (4 * 1024)   // Use only the 64k sectors
#define SECTORSIZE (512)       // 8 sectors per block
#define SECTORPERBLOCK (BLOCKSIZE / SECTORSIZE)
 
/*
 * Specify the total amount of flash memory in the system, and the amount
 * allocated to be used by the file system (the rest is used by the
 * application).
 */
#define FLASH_SIZE \
    (512 * 1024)   // Size of total flash in the
                   //    system, 512kB
#define FS_SIZE \
    (64 * 1024)   // Amount allocated to file
                  //    system, 64kB
#define FIRST_ADDR \
    (FLASH_SIZE - FS_SIZE)   // First file system address to
                             //    use in the flash
#define BLOCKSTART \
    (2)   // First block where file system
          //    data starts (first 2
          //    blocks are DESCRIPTORS)
 
/*
 * Descriptor Blocks:
 * These blocks contain critical information about the file system, block
 * allocation, wear information, and file/directory information.  At least two
 * descriptor blocks must be included in the system, which can be erased
 * independently.  An optional descriptor write cache may be configured which
 * improves the performance of the file system.  Please refer to the EFFS-STD
 * implementation guide for additional information.
 */
#define DESCSIZE (4 * 1024)   // Size of one descriptor
#define DESCBLOCKSTART (0)    // Position of first descriptor
#define DESCBLOCKEND (1)      // Position of last descriptor
#define DESCCACHE (1024)
 
#endif /* _ONCHIPFLASH_H_ */