The firmware in this directory is for older 35670A units without the new dislay.
New units with serial numbers with the "MY" prefix require different firmware.


35670A Firmware Update Utility Instructions
-------------------------------------------------

This file describes the steps required to produce a set of floppy disks 
on a personal computer (PC) that can be used to update the firmware 
in the HP 35670A or Agilent 35670A Dynamic Signal Analyzer. 

NOTE: The software tools used in this process will only work on computers 
running DOS 3.1 through Windows 98SE. 

Requirements:
-------------
   1. A PC with a 3.5" floppy drive that is compatible with high density
      (1.44 MByte) disks and running DOS.

   2. Two (2) 3.5" high density (1.44 MByte) DOS formatted disks. 

   3. The archive file that contains the new instrument firmware
      and tools required to produce the update disks.

Instructions:
-------------
   1. Make a temporary directory and place the self extracing archive
      file into the directory.  

      The archive file name is in the format AXXXX.EXE, where XXXX is 
      the revision number.  For example, revision A.00.30 is stored 
      in the file A0030.EXE).

   2. "Execute" the self extracting archive program.  For example:

         > A0030

      The self extracting archive contains the following files 
      that should now be present in your current directory :

         File              Comments
         -------------     --------------------------------------------
         HP35670A.*        Instrument firmware update files
         MAKEDISK.BAT      DOS batch file to produce update disks
         README.TXT        Usage instructions (this file)
         LIF.EXE           LIF file system utility

      There may be other files with additional information.

   4. Run the MAKEDISK.BAT batch file specifying the floppy drive for
      your 3.5" drive as a parameter.  For example :

         > MAKEDISK A:

      Place the first formatted disk in the drive and press return.  
      The batch file will prompt for subsequent disks as needed until 
      the process is complete.  i
      
      Label each disk in the order in which it was produced.  This is 
      necessary since the analyzer will require this same order during 
      the update process.

      The disks produced are now ready to update the firmware in the 
      instrument. Please follow the instrument's firmware update instructions
      to complete this task.

      Note: The MAKEDISK.BAT batch file will convert the DOS formatted disks
      into HP's Logical Interface Format (LIF) and then copy the 
      appropriate firmware update files to the disks.  This will render
      the disks unreadable by DOS (e.g. DIR), but you can view the disk
      contents with the LIF utility provided in the archive. For example:

         > LIF LS A: /L