Help Regarding SSC and Prodos

["Will Kranz" <w_kranz@conknet.com>]

As a quick overview, the Apple II was my first computer
experience.  I recently saved a couple from the trash
and want to renew my acquaintance.  I read the thread
about "Making DSKs with ADT" which looks like it will
be just what I wanted.  However it mentioned some things
about the Super Serial Card I did not know since I have
no documentation.

Possibly this should be posted on the Apple2.comm
newsgroup, and if so just tell me, but the hints were
found here so....

You guys said things about firmware on the card at $Cx00
and using <CTRL-I> or <CTRL-A> (depending on modem/terminal
jumper) to change baud rate.  Any more hints about this?
Are there other command options?  Does this only work after
addressing card with IN#? If 6B is 300 baud, what other
rates can one set with what codes?

I found several articles about the dip switch settings,
but nothing on these firmware features.  I tested the card
setting baud rate with the dip switches, and it always seems
to send 7 bit data with the high bit set even though I say no
parity via dips.  Is there a trick to get full 8 bit, no parity
binary data transmitted?  And how should I have the interrupt
enable switch set for use via the operating system, ie
IN#.  It seems to work the same way independant of how I have
this set, so I just don't get it.  Any help appreciated.

Lastly, I have DOS 3.3 disks, but to do the install of the
binscii.exe I've found I seem to need ProDos.  Are there any
available ProDos *.dsk image sets available?  Where?

Where do I find out about differences between *.dsk and *.po
disk image sets?

Thanks.