User`s guide

PCC-10 User's Guide 2-17
If a DOS real-mode driver is in use, other than the PCC-10 Card DOS driver, for a
specific device which is installed in the PC, Windows 95 may not know about that
device’s resource requirements. Unlike Windows driver conflicts, this problem is
difficult to diagnose.
There are rare I/O conflict situations of which the Device Manager may be unaware.
Such a conflict may occur when an I/O resource is not properly specified for a device,
and a new PC Card driver overlays onto the true I/O space of that device. In the
event of such a conflict, it may become necessary to manually reserve I/O or IRQ
resources using the Device Manager. This process is described in the Windows 95 on-
line help.
If a device resource requirement is “hardwired” into the PC, i.e., configured by a
jumper or not modifiable from the system
BIOS
, then there is little that the Windows
95 operating system can do to free the resources.
DOS, Windows 3.1 and 3.11
Under DOS and Windows 3.1x, the management of resources (IRQs, I/O ports, and
DMA) in a PC Card-equipped computer is the responsibility of the card services
driver and its utilities. These must be installed and operating prior to use of the
PCC-10 card. The card services are initialized at boot-up with information about the
basic, non-configurable system resource requirements. Once card services receives
this information, which is typically stored in an initialization file, it may allocate
available resources to PC Cards, as necessary.
It is important that the resource information that is used to initialize card services be
correct. Utilities are usually provided, or are available from the card and socket
services vendor, which can create and modify the resource database. Incorrect
information will allow conflicts when allocating these resources. Consult your
vendor’s card and socket services documentation for further details, or for
information on obtaining the needed utilities.
Windows 3.1x Only
If the card services are misallocating IRQ resources and assigning PCC-10 cards to
IRQs that are already claimed by other devices, the L
ON
W
ORKS
PCC-10 Card
Services Client may be used to correct the problem. Restoring the LONCSM.EXE icon
reveals the L
ON
W
ORKS
PCC-10 Card Manager window (figure 2.2).