RE: TI-H: IR LINK


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RE: TI-H: IR LINK



>From what I had read, one line transmits the clock data, one is for data, and the third is a ground line.  If this is wrong, then I'm getting incorrect data from someone else, so let me know.

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From: 	Osma Suominen[SMTP:ozone@clinet.fi]
Sent: 	Sunday, October 26, 1997 4:53 PM
To: 	ti-hardware@lists.ticalc.org
Subject: 	RE: TI-H: IR LINK

Christopher Kalos wrote:
> There are a few things that we have to realize aout the $4 link itself.  While
> it does not combine the two data lines or run any magic like that, it does send
> its data across the in a slightly hacked way.  Not to say that the $4 link
> doesn't work, but it doesn't comply to ANYTHING in RS232.  But since the PC
> deals with a UART, what the calc sends is not what the PC "sees."  Therefore,
> just because it looks wrong, doesn't mean it is.  All that it means is that
> there's a creative way of outputting the clock and data through the system. 
> perhaps what is really going on is that the MAX223 is re-converting the data,
> which across the transciever box should be totally incomprehensible to
> anything.
> Of course, if I make sense here, let me know.  I'm not 100% coherent right now.

Just one correction: there's no clock and data line in the TI protocol.
Find out somewhere how it works.

-Ozone

--
*** Osma Suominen *** ozone@clifi *** httpww.cnet.fi/~ozone **
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