Apple ][gs as dumb terminal

[dalloff@freenet.columbus.oh.us (Dave Althoff)]

Several points to consider here.

First of all, I believe the ][gs serial port emulates the Super Serial
Card.  Therefore, in order to get the port firmware to echo through the
80-column display, you may need to issue a ^A3S command.  This is
necessary on a ][e; I'm not sure on a IIgs.

Second, go back and re-read your DOS manual.  Issuing an IN#2 command will
redirect the INput hooks to the serial port, but your terminal OUTput will
NOT be redirected.  So everything you type will get echoed to the screen,
but not to the serial port.  To reset the output hooks, use the PR#2 command.

So, you need to do this--

]PR#3
REM makes sure 80-column firmware is turned on
]IN#2
REM Redirect input through serial port firmware
]PR#2
REM Redirect screen output through serial port (including the output of
the keyboard routine!)

NOTE:  This may echo on screen as--
 ] P R # 2

then, enter:
^A
to which you may see:
 A P P L E   S S C :
so you type "3S"
The screen clears, and you get a prompt.  Type ^A again...
APPLE SSC:t
should dump you into terminal mode, and you should have a two-way connection.

If the 'PR#2' command echoes as "P R # 2", then you need to use the ^A3S
command.  Otherwise, you can skip it.

Good luck!

Disclaimer:  All of this is based on the ][e with an 80-column board in
the auxiliary slot, and an SSC in Slot #2.  It should work on the ][gs,
but YMMV.

--Dave Althoff, Jr.
(I'm pretty sure that adding the PR#2 to your command sequence will solve
your problem.)