Re: TI-H: Expanders?

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: Expanders?
From: Grant Stockly <gussie@alaska.net>
Date: Wed, 15 Jul 1998 20:19:59 -0800 (AKDT)
Delivered-To: ti-hardware-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <35AD7DB3.21504416@flash.net>
References: <Pine.SOL.3.95q.980715201659.15899A-100000@y.glue.umd.edu> <l0313030fb1d297e0b991@[192.168.1.66]> <l0313032db1d2b486756b@[192.168.1.66]>
Reply-To: ti-hardware@lists.ticalc.org


>Grant Stockly wrote:
>
>> I'm not making fun of the deadlines...  :)  It works, thats my point.  Your
>> timing delay needs to be fixed in order to work right on the 10MHz
>> resonator.  You don't get 50ns on any of the AVRs...  :(  Atmel was
>> actually advertising 20MHz versions of all its chips for a while.
>
>Hahaha, you have the firmware revision with the delay still in it?
>That is one old sucker grant... I slowed the clock to 4 MHz and
>yanked the delay loop altogether. There is still a small one between
>bytes when the E2 is sending, but that is to keep the TI-92 FIFO
>from overflowing. Delay code is usually only needed when something
>is wrong with another portion of the code, and there were plenty of
>bugs in the version I sent you, trust me.

Yeah...  Like Pins 5 and 6 and one or two in the Ti routines...  I don't
remember how many I found...

References:

TI-H: Expanders?

From: "Eric M. Fiterman" <ericf@Glue.umd.edu>

RE: TI-H: Expanders?

From: Grant Stockly <gussie@alaska.net>

Re: TI-H: Expanders?

From: Grant Stockly <gussie@alaska.net>

Re: TI-H: Expanders?

From: Bryan Rittmeyer <bryanr@flash.net>

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