Locks up IEC bus
#11
I have a plain C128 with just a uIEC plugged into the IEC port, and the uIEC seems to work just fine even in 128 mode. I am having other problems, however.
1) Is it possible the UP9600 problem in 128 mode is limited to only some 128s?
2) If I'm not experiencing trouble with the drive(s), does that mean I don't have to worry about disabling the hack?

On the subject of drive types, I have not yet tried an actual disk drive, but elsewhere in the forum someone said that their uIEC was affected, so I'm not sure I need to specifically test that. But maybe it's also the case that I just haven't run into the IEC problem yet. When it affects a system, is it intermittent or constant as long as the WiM is plugged in?
Reply
#12
The problem is that the UP9600 hack affects the SRQ line, which is used by the C128 and 1571 drives. So, a C128DCR with the built in 1571 won't even boot in C128 mode.
Reply
#13
(07-28-2016, 10:23 PM)admin Wrote: The problem is that the UP9600 hack affects the SRQ line, which is used by the C128 and 1571 drives.  So, a C128DCR with the built in 1571 won't even boot in C128 mode.

OK. I will try my (non-built-in) 1571s when I get home. Perhaps I will also flash the special firmware onto the uIEC-SD that implements 1571-like fast mode, to see if that is affected.
Reply




Users browsing this thread: 1 Guest(s)