Path: utzoo!news-server.csri.toronto.edu!rutgers!ukma!wuarchive!udel!brahms.udel.edu!lamb
From: lamb@brahms.udel.edu (Richard E Lamb)
Newsgroups: sci.electronics
Subject: Re: Search for a Microprocessor
Message-ID: <19398@brahms.udel.edu>
Date: 7 Mar 91 06:00:09 GMT
References: <8661.27cc7da1@jetson.uh.edu> <4660006@hpfcdc.HP.COM> <1991Mar5.172506.13449@casbah.acns.nwu.edu>
Organization: University of Delaware
Lines: 20

>>>
>If you decide to go this route, you can even get the listing for a ROM
>bios from simtel since you will need to set up the DMA stuff to do memory
>refresh.  Many ROM bios's will not work if they do not see a keyboard
>attached.
>>> 
	I'd probably just leave the keyboard attached, and try to avoid 
BIOS bugs completely...

	Look, guys, all you need here is a parallel port to poll and 
something to act as a trigger... this stuff is NOT hard!

	Radio Snack sells a cute litle infrared LED/detector set for $2.
Set up one for each lane (?) and connect them to a parallel port (read the
directions first?), and scan up to eight in a tight loop....

	Set up entrance and exit detectors to get the final speed - just
like the traps at a drag race!  

RL