readcfi.txt

CF卡读卡程序

READCFI.TXT for Common Flash Interface Low level- ANSI C Version
04-Feb-1998

Current source versions:   Lowlvl with CFI in 'C'   v2.4
           

This read-me file is organized into the following sections:
   1.0 Purpose
   2.0 What's New
   3.0 Source Organization and Contents
   4.0 Installation
   4.1 Upgrading From An Older Revision
   4.2 How To Install The New Source
   5.0 Software Generation
   6.0 License Agreement
  

1.0 Purpose
-----------
The included source code contains the ANSI 'C' source code for Intel's
Common Flash Interface (CFI) Low Level Routine Reference Code.  

This can be used as a basis for, or an education on, heuristic flash 
detection and support routines based on CFI flash architecture.


2.0 What's New
--------------
02-February-1998  Version 2.4
                  Add additional functionality: set/clear lock bits,  
                  full chip erase, multiple erase regions, configure 
                  status, load DC and time parameters.  Improved  
                  compiler independence, particularly in the 
                  IntelSCSWrite function.	  

09-September-1997 Version 2.3
                  Correct mask value for error in erase for CFI parts.

29-August-1997    Version 2.2
                  Optimized polling loops in flash routines
                  Minor timing fix for non-CFI x8 flash devices
                  Add ERR_DETECT define in type.h for device check 
                  routine
                  
09-July-1997      Version 2.1
                  Added enhanced method to link in other vendor's CFI
                  low level routines
                  Fixed minor issues in:
                     - reading buffer count in x16 mode
                     - erase suspend operation

18-April-1997     Initial Release

3.0 Source Organization and Contents
------------------------------------
After extracting the main archive, you will find the following files:
   READCFI.TXT  -  This file.
   LICENSE.TXT  -  Intel Source Code/Executable license agreement
   FLOWCH~1.DOC -  Word for Windows* V7.0 format document that contains
                   the flowcharts of the reference code.
   LOWLVL.C
     . read/write/erase routines for supported flash devices
     . recognition code, determining flash type and media size
     . includes CFI (Common Flash Interface) support 
    
   LOWLVL.H
     . definition file for "low level" routines

   Type.H - Please see this file for compile time options which
            modify and adapt the code to support your specific
            hardware and software application.
     . All compile time options are defined/enabled/disabled here
        
   PCIC.ASM - This particular module supports the Intel 82365SL 
              PCIC or compatible PC Card controller.
     . routines for i82365SL controller
     . includes window setting and power control
              If you are not using a PCIC, then your hardware
              specific routines should go in the following file
              which replaces PCIC.ASM in this situation:

   ARCH.C - Your application specific flash hardware interface routines
            go here to replace PCIC.ASM for non-PCIC applications 
      . Flash interface initialization routines
      . Window setting (if any) and power control (if any)

   TABLE.C
     . table of supported flash devices
     . includes component geometries (block size, device size)
 
   LIBRARY.C
     . memory functions: copy and compare 
 
   LIBRARY.H
     . definition file for "low level" routines
  

4.0 Installation
----------------
The installation instructions assume that you have run the main self-
extracting executable in order to obtain this read me file as well as 
the rest of the files contained within. 

***********************************************************************
Please read, understand, and agree to the terms of the included 
LICENSE.TXT before installing the software.  It contains the Intel 
Software license for the use of this source code.  Please print out the 
file (see instructions below), fill out the registration information, 
and return a signed copy (follow the instructions at the end of the 
license).
***********************************************************************

4.1 Upgrading From An Older Revision
------------------------------------
If you are installing this file as an update to a previously installed 
source, it is highly recommended that you archive your original work 
(i.e. move your files to a new directory) and then delete all of the 
'old' files and directories before installing the new files -OR-, 
install the new files in a new directory.  This is because the file 
names and/or directory structure(s) may have changed and could cause 
confusion if mixed together with the old files and/or directory 
structure(s)!  

Next, install the new source as detailed below in 'How To Install The 
New Source'.

The next step requires you to evaluate the modules that have changed 
in the new source since your current (older) source revision and 
determining how the changes impact your own changes to the original 
code. You may be able to use your modified modules with the new source, 
or, you might have to roll your changes into the new source modules 
(or visa-versa...  ahh, the joys of programming!)


4.2 How To Install The New Source
---------------------------------   
To install the source code:
   1) Copy files to your work directory 
      


5.0 Software Generation
-----------------------
The CFI Low Level code and support files have been written in ANSI C.  
The source code may require changes to compile and assemble with your 
particular processor.   

Your application and hardware specific support routines, such as flash 
hardware interface routines, should be coded in ARCH.C module. However,
if you are using a 365SL PCIC or compatible PC Card interface on an x86
platform, the file PCIC.ASM may be used instead.

Please see the module TYPE.H for the compile time options that can be 
used to modify the operation of this code.

6.0 License Agreement
-----------------
The license agreement for the Intel source code and executables is 
included in the file LICENSE.TXT. It can be printed by using the 
command:

   COPY LICENSE.TXT LPT1:   (substitute the LPT# of your printer)  
-OR-
   PRINT LICENSE.TXT
 
***********************************************************************
Please read, understand, and agree to the terms of the included 
LICENSE.TXT before installing the software.  It contains the Intel 
Software license for the use of this source code.  Please print out the 
file, fill out the registration information, and return a signed copy 
(follow the instructions at the end of the license).
***********************************************************************
 

   
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