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用于TM1300/PNX1300系列DSP（主要用于视频处理）的flash文件系统的程序源码。

NOTE: tmsim- based test only; for starting, type 
        

                 make TCS=.. 



This is a demo of a complete flash based system, tying together
most of the examples in the sibling directories. In order to be able
to test this without having access to a real flash based system,
flash memory is simulated in allocated memory by making use of 
the FlashSpecificSim driver in the sibling flash_demo directory.
This flash simulator lets flash contents survive in a file 
Flash.image.

This demo consists of the following consecutive steps:


   1) It creates an empty file system (using example ../mkfs).

   2) It compiles the psos demo 1 into a dynamic .app executable.
      This .app must be started using a .dynboot application shell,
      and will dynamically load psos.dll and some other dlls of the
      ANSI library before it actually starts executing. All these 
      dlls must be moved to /flash/dlls to make them accessible in
      the 'standalone' system before this dynamic loader based example
      is able to run.

   3) In order to do this, all these dlls, plus the psos demo 1 app
      are copied into a subdirectory 'flash', which is subsequently
      copied to flash using simply file copy operations
      (using example ../write_files).

      NOTE: when file copying is not possible, see the following tool
            for packing a directory structure in a self- unpacking 
            executable:

               $TCS/examples/compression/zlib/utilities/tmSEA

   4) The example in ../flash_demo is compiled into a memory image
      and installed as a flash boot image after having read it from file
      (using example ../write_boot).
      Note that this boot image will be loaded in he middle of SDRAM,
      to give our L1 boot simulator in step 5 the lower half, but in a
      real system we want to be somewhat more economical. Both
      executables need at least 8M of heap to keep the simulated flash
      image. 

      NOTE: when file reading is not possible, see the following tool
            for packing a boot image in a self- unpacking 
            executable:

               $TCS/examples/compression/zlib/utilities/tmWRB

      NOTE: boot images can be compressed to self-unpacking booters,
            saving approximately 50%, by:

               $TCS/examples/compression/zlib/utilities/tmSEI

      NOTE: A real booter can be found in sibling directory 'autoboot'

   5) The system is subsequently 'booted' by our L1_boot emulator. 
      This will run an intensive file- and directory creation test.

   6) Using the appshell, the psos_demo1 app is started, loading dlls
      from flash.

   7) The system is 'booted' again by our L1_boot emulator. This will run
      an intensive file- and directory creation test.