Re: A82: Re: Link Port

To: assembly-82@lists.ticalc.org
Subject: Re: A82: Re: Link Port
From: "Evil Sam" <evil_sam@hotmail.com>
Date: Tue, 26 Jan 1999 20:27:42 PST
Delivered-To: assembly-82-outgoing@towerguard.unix.edu.sollentuna.se
Delivered-To: assembly-82@lists.ticalc.org
Reply-To: assembly-82@lists.ticalc.org


>>  Do the ROM_CALL link routines work 82->85,86,89,92? Doubtful. The
>>poster said something about 82 & 85 routines.
>
>I checked the 82 routines in the ROM with the one listed in linkprot 
(85 rom
>routines), and they seems to be the same. I think the protocol is the 
same
>except for one byte (the ID byte set to either TI82 or 85). So I think 
they
>would work on all the calcs (myabe except 92 and 89).


   But if you try to send 82->85 from the TIOS, it won't do it.


>>  Also, when the batteries are low, does the calculator's interrupt
>>speed gets slowed/quickened?
>
>The processors clock signal gets slower, but I dont know about the 
interrupt
>speed. I dont remember if the display controller generates the clock it
>self, or if it is supplied by the 82 chip. Have a look at the display
>controller data sheet.

   Well, if you set the interrupt speed a little higher wouldn't the the 
processor speed decrease and the interrupt speed balance out?


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