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Re: Novix NB4300

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dougatdoughq@gmail.com wrote:

> Hi,
> 
> I went mad, and clicked the 'buy it now' button on ePay, and have a Novix
> NB4300 STD board being sent to me :-)  Ok - Not *that* mad, but just a
> little crazy.
> 
> In the late 80's, I worked at the Australian National University here in
> Canberra, Australia, where I helped work on a Novix Beta Board - And it
> was amazingly fast.  Blindingly fast.  So much so, that I copied the doco
> and the distribution media.
> 
> So - I have here the printouts of the Novix NC4000P Supplement, which
> documents the Beta Board, and some 40 track floppies - The job for the
> next couple of nights, is to grab the data off the floppies.
> 
> I am writing to the list, to see if anybody has doco for the STD bus
> board, the NB4300, or if I will be reverse engineering it.  From the
> photos, I see that it has serial on board, as well as the ram for the
> stack, the return stack, and the data ram, as well as a couple of narrow
> ePROMS.  I can't figure out how serial was implemented from the photo, but
> there is enough programmable logic that they *might* have implemented a
> SIO in a gate array because they were out of board real estate, but that's
> not likely.
> 
> What stuns me is that it looks like there there is *nothing* on the web
> about the board - almost a complete vaccuum - which is weird.
> 
> Anyway - hopefully somebody else here can help.
> 
> Doug

One of the best documents that explains about the NC4000 chip is "Footsteps 
in an Empty Valley" by C. H. Ting (circa 1985). If I recall, the serial was 
a bit-banged interface which required a letter from the terminal to 
synchronise to the baud-rate you were using.

-- 
********************************************************************
Paul E. Bennett IEng MIET.....<email://Paul_E.Bennett@topmail.co.uk>
Forth based HIDECS Consultancy.............<http://www.hidecs.co.uk>
Mob: +44 (0)7811-639972
Tel: +44 (0)1235-510979
Going Forth Safely ..... EBA. www.electric-boat-association.org.uk..
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Novix NB4300 dougatdoughq@gmail.com - 2014-11-03 20:39 -0800
  Novix NB4300 Mark Wills <markwills1970@gmail.com> - 2014-11-03 23:07 -0800
  Re: Novix NB4300 Paul E Bennett <Paul_E.Bennett@topmail.co.uk> - 2014-11-04 09:17 +0000
    Re: Novix NB4300 albert@spenarnc.xs4all.nl (Albert van der Horst) - 2014-11-07 15:12 +0000
      Re: Novix NB4300 JUERGEN <epldfpga@aol.com> - 2014-11-15 01:32 -0800
  Re: Novix NB4300 anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-04 12:30 +0000
    Re: Novix NB4300 Paul E Bennett <Paul_E.Bennett@topmail.co.uk> - 2014-11-04 13:23 +0000
      Re: Novix NB4300 anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-11-04 13:40 +0000
  Novix NB4300 dwarman@davidwarman.net - 2014-11-04 05:52 -0800
  Re: Novix NB4300 Syd Rumpo <usenet@nononono.co.uk> - 2014-11-04 14:30 +0000
    Re: Novix NB4300 Syd Rumpo <usenet@nononono.co.uk> - 2014-11-04 16:19 +0000
  Re: Novix NB4300 albert@spenarnc.xs4all.nl (Albert van der Horst) - 2014-11-04 16:21 +0000
  Re: Novix NB4300 JUERGEN <epldfpga@aol.com> - 2014-11-07 06:08 -0800
    Re: Novix NB4300 Jan Coombs <Jan-54 <jenfhaomndgfwutc@murmic.plus.com>> - 2014-11-18 16:39 +0000

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