Re: Focus drive in IIe (long)

[david@uow.edu.au (David E A Wilson)]

casa@unm.edu (Jim Pittman) writes:
>Okay, maybe the non-enhanced IIe can't start looking for a bootable
>device in slot 7 then look in slot 6 then look in slot 5 etc. So we
>tried the Focus drive in slot 7 of an ENHANCED Apple IIe. The exact
>same sequence occurred with that machine.

Now that is strange. A non-enhanced //e (or ][+) will only boot from Disk ][
device ($Cn07 = $3c) while later machines ignore $Cn07 and only check $Cn01/3/5.
My Cirtech SCSI card has a jumper to disable the Smartport and make it look
like a Disk ][ for exactly this reason.

>But WHY WHY WHY does Alltech say in their documentation that the Focus
>drive can be installed in slot 7 of a IIe and it will boot up? Have I
>missed something?

In an enhanced //e, it should work. Does it work after a forced reset (ctrl+
open_apple+reset)?

P.S.

Why do you still have an unenhanced //e? [Not that it would have helped in
this case apparently].

P.P.S.

I prefer to keep my disk controllers in slots 4,5 & 6 as Pascal 1.3 can find
them there. In one of my //e computers I modified the monitor ROM to scan for
bootable devices from slot 1 up to 7 (the reverse of normal) as otherwise it
would get stuck on the DuoDisk in slot 6 and miss the SCSI card in slot 4.
My other //e has a UDC in slot 6 which will continue the scan in slot 5 if no
bootable disk is found.
--
David Wilson	Dept CompSci Uni Wollongong Australia	david@cs.uow.edu.au