[pups] roll-your-own-unibus boards?

Jochen Kunz jkunz at unixag-kl.fh-kl.de
Tue Jan 20 19:22:38 AEST 2004


On Mon, 19 Jan 2004 18:38:37 -0500
Brad Parker <brad at heeltoe.com> wrote:

> Does anyone have any thoughts on how hard it would be to make a unibus
> board which is an IDE controller?
> 
> I have 4-6 layer boards fabbed regularly and use modern CPLD's & VHDL
> on a regular basis, so the building part looks easy.
I see two problems:
1. Bus transciever chips.
2. Software interface.

Most likely you want MSCP, but implementing a UDA50 clone is not quite
trivial. It is doable, but it would be quite some effort to write the
firmware for the controler processor. Maybe you can also implement other
emulations for RL02 or RK07 or ... That should be simpler then MSCP.
-- 


tschüß,
       Jochen

Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/



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