Re: TI-H: The Parallel Port Link

Subject: Re: TI-H: The Parallel Port Link
From: Tony Lieuallen <lieuallen@server1.iop.com>
Date: Sun, 27 Oct 1996 21:12:49 -0500 (EST)
In-Reply-To: <3273aeb0.7133151@climax.polaristel.net>

On Sun, 27 Oct 1996, Tim Gerla wrote:


> >Excellent idea! One of those two lead LEDs, with green and 
> >orange chips would be perfect! Green when no data was being 
> >transfered, and orange with data. Just like the Sony CD-ROM 
> >drives (mine anyway).
> Whoops! That would not work that simply! Of course the data not being
> transferred would not have negative polarity, so it would not work.
> But maybe a three lead LED with one connected to strobe? Yeah! I'll
> try that.


Well, actually, no.  The ti transmits as zero volts for a binary 1, so when 
data is being transfered, there would be no light.  Anyway, the light 
would turn a specific color depending on what way the data was being 
transfered.


Tony Lieuallen = lieuallen@iop.com = zarniwoop@juno.com
"If cars had experienced the same technological progress that computers
have experienced in the last two decades,  cars would get 400 miles per
gallon, have 40,000 horsepower, cost under $500, and blow up at least once
per week, killing all occupants." - Unknown


Know thyself.  If you need help, call the C.I.A.

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