(included on this CD) for information on known issues in the current release of Digital X Bus
software and FireWire Card firmware and drivers.
I. Resetting the Connection
If you cannot get the Digital X Bus FireWire card to communicate with your computer
after plugging in the FireWire cable, you may simply need to reset the connection. This is
done in the exact same manner as changing the Host Mode or the Sample Clock settings,
as explained on page 10 of this Guide. Repeat this process several times if necessary.
II. Rebooting
If you are still unsuccessful at establishing communication after several attempts at
resetting the FireWire connection, then it is possible that the FireWire interface on either
the Digital X Bus or host computer is frozen. When this happens, simply remove the
FireWire cable and power cycle both the Digital X Bus and your computer. Reconnect
the FireWire cable in normal fashion after both are back up and running.
III. Audio MIDI Setup Panel (OS X users only)
When making a connection between a Mac and your Digital X Bus FireWire Card for the
first time, it is helpful to have the Audio MIDI Setup Device Panel
(
Applications>Utilities>Audio MIDI Setup
) displayed on your desktop when
you make the connection. This window will show you within several seconds whether or
not the FireWire Card is communicating correctly with your Mac.
This could save you valuable troubleshooting time when the
DXBFire (0000)
driver is not
visible in your Core Audio application’s device driver setup dialog. The
DXBFire (0000)
driver must be listed in the Audio MIDI Setup window before any OS X Core Audio
application can use it.
IV. IRQ Stacking (PC users only)
IRQ stacking occurs when two or more devices are assigned to one IRQ. In some cases,
IRQ stacking may not affect performance at all. Chances are, however, that if you are
reading this section, you may have encountered this conflict.
Ideally, the PC FireWire interface hardware should be assigned to its own, dedicated IRQ,
and should not share its IRQ with any other device. To check for IRQ conflicts, go to the
Windows XP
Device Manager by clicking
Start> Control Panel> System>
Device Manager> View Resources By Connection,
then select <
IRQ>
from the
system tree shown below.
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