User`s guide

PCC-10 User's Guide 2-19
• Unused IDE controllers that can not be disabled through the
BIOS
;
• Unused/nonexistent PS/2 mouse ports;
• Sound cards that support both 8-bit and 16-bit compatibility modes,
consuming two IRQs.
An additional problem often associated with sound cards is the improper reporting
of I/O resource usage. This problem may be recognized by examining a device’s I/O
address allocation for strange one-byte assignments since devices typically use
more. For example, if a device’s stated I/O range is 0x201-0x201 but its actual
range is 0x201-0x204, a conflict will occur if the PCC-10 card is assigned an I/O
range of 0x204-0x207. If this problem is suspected, manually move the PCC-10
card’s I/O range to a safer location to prevent I/O overlap.
Software Compatibility
The PCC-10 card software is designed to be compatible with L
ON
W
ORKS
-based
software. However, the following issues may arise when using the PCC-10 card
with some software.
Device Name Aliasing under Windows 3.1x
and Windows 95
The PCC-10 card should operate with most third-party L
ON
W
ORKS
-based
software. However, some 16-bit Windows applications which use the services of
Echelon’s WLDV dynamic link library are limited in the device names that can be
selected. For example, only the names “LON1” through “LON9” may be available,
preventing the use of a PCC-10 card. This problem can be fixed through the use of
device name aliasing. To create a device alias under Windows 3.1x or Windows 95,
follow the instructions below:
1. Open the file named ECHELON.INI, which should reside in the WINDOWS
directory. If this file does not exist, then create one with a text editor.
2. Create a driver alias section in the file, by adding the following line:
[DRIVERALIAS]
3. On the following line, add the driver alias:
aliasname=devicename
where aliasname is the device name accessed by the software, such as
“LON1”, and devicename is the device to be used.
4. Add additional aliases, as necessary.
The following example creates a device alias that routes all service requests for
LON1 to the PCC-10 card PCCLON1.
[DRIVERALIAS]
LON1=PCCLON1