Re: TI-H: Serial Port for TI-8x
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With this in mind, a port replicator with 2 serial ports (1 for a modem and
another for future expansion ie. mouse, second modem...?), 1 parallel port
(then you can print directly from the calc to a printer!), another TI-Calc
port (2.5mm or 3.5mm) and perhaps a joystick port (15pin). That would
obviously require a device driver to be TSR (like the Game Genie or maybe
the one Mel's making for the expander) and within that would be a printer
driver, a joystick driver, calc -> calc port rerouting and a serial driver
that will operate at optimum speed. It may also be a good idea to include
a second calc -> calc rerouting port to access the memory extender. This
would be a complicated task, so I'm sure it would take some time figuring
out.
"Freedom of speech is in the constitution, abuse of it is in the slums"
-= Zenon@bbs.nexes.com =-
----------
: From: ti-hardware@lists.ticalc.org
: To: Zenon
: Subject: TI-H: Serial Port for TI-8x
: Date: October 21, 1996 1:00 PM
:
:
: TI>I was looking at the schematic on the Datasheet of the 16550 UART from
: TI>Nation Semi. It shows how to use it with a basic microprocessor.
: TI>Couldn't the current I/O unit be taken out of the Ti and replaced with
: TI>something more normal, like the 16550 and then ANY comm. device could
be
: TI>used with the correct software.
:
: One problem with that is it destroys ALL compatibility with
: current TI- calculators and the links and perhaps software hookups would
: all have to be rebuilt.
:
: Zarquon
: Sysop of Imperial Realm (410) 799-8616
: http://members.tripod.com/~Zarquon/
zarquon@gaianet.net
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