Re: A83: software modem...

To: Stefan Lennartsson <assembly-83@lists.ticalc.org>
Subject: Re: A83: software modem...
From: Linus Akesson <lairfight@softhome.net>
Date: Thu, 02 Jul 1998 18:25:29 +0100
Delivered-To: assembly-83-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <Pine.LNX.3.96.980702110450.8568A-100000@eliN.hemmet.s-hem.chalmers.se>
Reply-To: assembly-83@lists.ticalc.org


Yeah, but did you look at the protocol? There's no speed requirements
whatsoever, apart from the 2s timeout which really doesn't matter in these
circumstances... (oh, it fails on 0.4 baud..= ))

Linus

On 02-Jul-98, Stefan Lennartsson wrote:

>On Wed, 1 Jul 1998, Olle Hedman wrote:

>> 
>> At 17:03 1998-07-01 -0700, you wrote:
>> >
>> >comments on my site also. And would it be feasible to make a software
>> >modem for the 83? 2400? 4800? 9600? I'm not asking hardware because I
>> >want to know if you think that the TI to do this? All you'd have to do
>> >for hardware is connect each of the two phone pins to the data and
>> >clock pins.
>> 
>> you do need hardware.. because you don't want to connect you 48V (or around
>> that) telephone line to your poor linkport directly..  you don't need much
>> hardware..  but you do need some...
>> 
>> I think it could be done..   but not at any lightening speeds :)  at most
>> 1200 is my guess.. (without any calculation and checking in to it..)   
>> 
>> //Olle
>> //Olle
>> 
>I think it needs to be in 9600 to make the link protocol work correctly.
>That's the speed the ti sends with the graphlink.

>/Stefan

References:

Re: A83: software modem...

From: Stefan Lennartsson <stefan@infinity.hemmet.s-hem.chalmers.se>

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