User`s guide

2-4 Installing the PCC-10 Card
to use the PCC-10 card device driver under Windows rather than attempting
to access the device under DOS.
Once this driver is installed and active, existing 16-bit Windows applications
can access the PCC-10 card using the ldv_open(), ldv_close(),
ldv_read(), and ldv_write() functions provided by the WLDV.DLL file.
The installation software installs a new WLDV.DLL file, replacing any pre-
existing versions of the file. The updated WLDV.DLL is fully backward-
compatible with previous versions.
8. If the installation software discovers the SYSTEM.INI entry that loads the
ISA-bus driver, ECHLMPA.386, it will comment out the entry and display the
message, “SETUP has modified your SYSTEM.INI file by removing the
following entry: device=echlmpa.386.” It is not possible to use the ISA-bus
protocol analyzer card and the PCC-10 card on the same PC.
9. The installation software for the Windows 95 version will issue a prompt to
add a DOS virtual-mode device driver file named LDVVDD.SYS to the DOS
CONFIG.SYS file to support DOS applications calling LON1. This will allow
DOS applications to be used in a Windows 95 DOS shell/window. For more
information see Virtual-Mode DOS Driver later in this chapter. The following
line is added to the CONFIG.SYS file:
DEVICE=C:\LONWORKS\BIN\LDVVDD.SYS /D1
10. Installation is complete. At the prompt to restart the computer, remove the
PCC-10 installation diskette and restart the computer. Note that Windows
will not recognize the PCC-10 card until the computer is restarted.