7 Jul
2005
7 Jul
'05
12:19 p.m.
I'm not a
'Qbus person', much prefering Unibus machines, but IIRC one of
the ST506/RX50 controllers (RQDX1 I think) had to be the last device on
the bus since it didn't pass on grants. If that's the controller you
have, then the RXV21 would mever get BGs or NPGs and woul;d probably do
what you're seeing. Try putting the RXV21 first...
Especially since the boot ROMs pull the boot sector off the floppy
without interrupts. You should see some activity, hear heads,