Re: Help w/ ADT and serial port on //gs

[kloesch@pgh.nauticom.net (KEVIN LOESCH)]

	The reason is the ADT work on the GS is the serial chip. Apple 
change the chip on the GS(I think they also did it to the IIC Plus) to 
allow a faster baud rate. The chips on the II+, IIe and IIc were Zilog 
SCC chips and the IIgs used and intel chip. Apple wrote the firmware 
to be compatible, but they were not compatible at the hardware level. Thus 
anything that tried to right to the comm chip registers would not work 
properly. 

Kevin Loesch
kloesch@nauticom.net

Frank Poppelsdorf (fwpoppel@cs.ruu.nl) wrote:
: On 30 Jan 1996, Frank B wrote:

: > Help,
: > 	I am trying to transfer images of my apple ][+ floppies from
: > my new (used) //gs to my PC. I have a null modem cable connected from
: > the //gs modem port to the PC port. I set slot 6 to your card (so I
: > can use the 2 floppies from my ][+ for transfers, and I boot from
: > slot 6. when I get to DOS, I type IN#2 which comes back w/ the prompt,
: > but when I type ^A6B as instructed to set the serial speed, no dice,
: > I get a syntax error or somesuch. I have tried putting my SSC in slot
: > 2 and setting it to your card, but I get the same response. Any help
: > would be appreciated as I have many games people have been requesting
: > that I would like to transfer. Also if anyone has used ADT w/ a hard
: > drive to read from the //gs floppy I'd like to hear about it.
: > 				Thanks,
: > 				Frank
: I tried using ADT with my IIgs only with no luck either.  Appearently it 
: was written in such a way that it only works with communication ports on 
: the IIe, NOT the IIgs.  This means that ADT is completly useless for IIgs 
: users (which, I might add, would have been nice to have been added to the 
: docs).  The way I transfer disks is by the following ways:
: 1) use ProCom on the IIgs and under the ApplePC emulator, and just send 
:    the files you need over.
: 2) use a program (I can't remember the name, but just look at the 
:    utillities directory) to write a disk to a file and send that file 
:    using ordinary comm programs.  Since you can write to a RAM disk on a 
:    IIgs, or to a 800K disk, this is relatively easy.

: Of course you can always ask the maker of ADT to make a IIgs version. :)

: /---------------------------------------------------------------\
: |  Frank Poppelsdorf            E-Mail: fwpoppel@cs.ruu.nl      |
: |  Utrecht University           Department of Computer Science  |
: \---------------------------------------------------------------/