Re: TI-H: Talk 85

Subject: Re: TI-H: Talk 85
From: becker <becker@inil.com>
Date: Thu, 09 Nov 1995 12:28:04 -0500
In-Reply-To: <TI-H: Talk 85>

> YOU ARE WRONG!!!!  Didn't you read that file through?  The subs in
> that file _ARE_ TI's routines!!  _YES_, the ones IN THE ROM!!!
> 
> TI DOES NOT USE A CLOCK SIGNAL!!!  It would not be accurate.  See?
> Look:  As we know, the speed of the calc's varies with the battery
> strength.  Let's say the the batteries in the sending calculator are
> BETTER than the ones in the recieveing calc.  This would mean that
> the sending calc is running FASTER than the recieving calc.  Now the
> recieving calc CANNOT keep up with the clock pulses coming from the
> sending calc, causing the recieving calc to "miss" a few bits of data
> here and there.  THAT IS WHY THIS METHOD IS INSANELY ERROR-PRONE.
> Even if it WAS used, the transmission would have to be slowed down
> greatly, to ensure that the calc's could keep up with each other.
> Now, you can't tell me that this is the case; remember that the
> GRAPHLINK translates the calc's signal to a 9600 bps RS-232
> compatible signal...
> 
I'm not agreeing, or disagreeing with anybody, but in ti-basic I know
for sure that the calculators agree on a speed before the transmission,
and hold that speed through the transmission.  I hope this helps.

References:

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