Date: Wed, 28 Jan 1998 22:36:21 +1030 From: Mike Smith <mike@smith.net.au> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: Kedar <kedar@asacomputers.com>, Mike Smith <mike@smith.net.au>, freebsd-hardware@FreeBSD.ORG Subject: Re: Serial I/O. Message-ID: <199801281206.WAA00945@word.smith.net.au> In-Reply-To: Your message of "Wed, 28 Jan 1998 00:14:44 BST." <1019.885942884@critter.freebsd.dk>
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> > O.K. We are thinking of having somebody customize the BIOS for this > >purpose. Using SBC's. Would rather use regular motherboards. Never done > >it, don't know how difficult/easy it is. > > Actually, why not make an isa card with some dual-port ram at the right > addresses so it looks like a videocard (CGA!) and a simple microcontroller > driving a RS-232 port to the dumb terminal ? Because ISA sucks? If I had the time & a backer to do this, I would use a PLX9050, some small SRAMs, a 68EC000 and a 16650, and the reasonably-public-domain VGA BIOS that comes with BOCHS. > This would work with standard motherboards... > > (I'll buy one or two if you make them !) You'll have to negotiate with Jordan for my time, I fear. Too many cookies in the jar right now. 8( -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\
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