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From: samuelm@umd5.umd.edu (Samuel J. Mitchell)
Newsgroups: comp.sys.cbm
Subject: CBM 8032 questions...
Summary: I need references and assistance for a documentation-less CBM 8032.
Message-ID: <7280@umd5.umd.edu>
Date: 13 Sep 90 14:11:04 GMT
Reply-To: samuelm@umd5.umd.edu (Sam Mitchell)
Organization: University of Maryland, College Park
Lines: 47
Keywords:CBM,commodore,8032

Hello,
   I just purchased a surplus Commodore 8032-32B, manufactured
in 1980.  I realize that it is not quite the computing powerhouse
it once claimed to be, but my interests are chiefly in 6502 assembly
and some simple hardware projects.  I have three major questions
regarding this relic:

1)  Where ( if ever ) were memory maps, io port pin-outs, CBM8032
    tricks&traps, etc. published?
    Titles of reference books, magazine articles, or CBM manuals
    specific to the CBM 8032 would all be appreciated.  Currently, 
    I have no documentation at all for this machine. 


2)  On the side of the machine, there are four switches ( see below )

 <--keyboard (front )                        power cord (back)-->

         3-way       3-way            2-way       2-way
         switch      switch           switch      switch
 
      | R  R  P  |  6  6  P |      | R  U  R  |  O  U  O |
      | E  /  R  |  8  5  R |      | A  D  O  |  F  D  N |
      | A  W  O  |  0  0  O |      | M  1  M  |  F  1    |
      | D     G  |  9  2  G |      |    2     |     1    |
      |__________|__________|      |__________|__________|
           |           |                 |          |
           |           |                 |          |

  The only switch that seems to have any effect is the 3-way
6502/6809/PROG:  when set to 6502, the CBM powers up with the
normal Basic 4.0, nnnnn bytes free message.  When switched to
6809 mode, the screen clears, and the cursor sits in the upper
left of the screen (home), flickers slightly, and does nothing
else interesting.  Do I have a bad 6809?  Do I need to set the
other switches differently? What do the other switches DO?  Is
there a God?  Any answers would be appreciated.

3)  I have no peripherals.  If anyone has a working datasette
    (old cassette drive) they will part with cheaply, I'm
    interested.  Alternatively, if there are any circuit diagrams
    for building a simple interface to a 1200 baud Hayes-compat.
    modem, I have a modem I can use to do io with a vaxstation on
    the net.  Ref's to diagrams would be helpful.

Thanks for your help,
- Sam     (samuelm@umd5.umd.edu)     (301) 405-6912 work.