Bart writes ...
>
....
>
> Any suggestions of any similar products that might work
> with this chip or....is it possible to procure the older I/o card without
> breaking the bank or....?
I guess you could replace the Franklin I/O card with an Apple SSC. That
would let you use ADT. The Apple SSC costs around $25.
(e.g. see http://www.intrec.com/intrec/intrecdox/store/store.html .)
Or, you could get the Modem MGR telecom package on diskettes via snail
mail. It is supposed to be compatible with the Franklin I/O card.
Anyway, below is an updated and corrected version of the ProDOS patch
info. You may be able to continue booting by entering the short (EA EA) patch
while in the monitor after ProDOS bombs. (If the patch does not do the trick,
it may be because you are trying to boot ProDOS 2.0.3 on a 64k machine.)
>>
039- How can I boot ProDOS on my Franklin computer?
In an old Apple Clinic note, Stephen Craft listed specific locations to
change after your Franklin freezes. You could then restart via a 2000G from the
monitor. Here is an updated listing showing the locations to change for several
versions of ProDOS:
v1.1.1 $269C: EA EA
v1.4 $2829: EA EA
v1.7 $2829: EA EA
v1.8 $2834: EA EA
v1.9 $2863: EA EA
v2.0.3 $2834: EA EA
It turns out that the bytes Stephen was diddling are D0 03 in the sequence
69 0B D0 03 A5 0C 60. The sequence is near the end of a routine that checks
for the "APPLE ][" string found in all genuine Apple II ROMs but not in most
Apple II clone ROMs.
To fix the booting problem, do this:
Start Copy II+ and select "Sector Editor"
Swap-in the ProDOS diskette
READ Track 0, Sector 0
Search for (Hex bytes): 69 0B D0 03 A5 0C 60
When you find the above, change the D0 03 to EA EA
and write the changed sector back to diskette.
The patch eliminates the checksum test/branch and allows ProDOS to boot on
Apple II clones which would normally fail the check. This patch has no effect
on ProDOS functioning on regular Apple II's.
The above patch is absolutely necessary to get a bootable ProDOS working
for many Apple II clones. Jim Sather (inCider, March 1986) recommends a second
patch which is optional. It prevents ProDOS from erroneously reporting that a
//e-style 64K 80-column card is present when running on a Franklin.
Note: This patch should not be applied except by Franklin and, possibly, some
other clone users. On a //e, //c or IIgs it causes ProDOS to not see an
80-column card or some extra memory. (The patch may be inappropriate for
running on some later model Franklins, too.)
To do the patch, procede as described for the main patch and also do this
...
READ Track 0, Sector 0
Search for (Hex bytes): AE B3 FB E0 38
When you find the above, change it to A2 EA EA E0 38
and write the changed sector back to diskette.
<<
Rubywand