Instruction manual

APPENDIX D. CARD SERVICES DRIVER SOFTWARE NOTES
D-2 PC208W, Version 3.0, Instruction Manual
configure Award’s CardWare 2.1 (for Windows
3.1) to work satisfactorily with Windows 95.
Always use the “PC Card Setup” facility
included in SMS before using PC cards with
SMS. (See “Establishing Communications” in
Section 5 of this manual.)
D.2.2 CSL-CS.DLL
CSL-CS.DLL provides a common interface for
SMS to the different implementations of card
services.
CSL-CS.DLL creates an initialization file, CSL-
CS.INI, in the Windows directory. You should
not need to manually modify this INI file, since
PC Card Setup automatically modifies this so
that the DLL works correctly.
D.3 SETTING UP CARD SERVICES
NOTE: SMS is provided with its own Card
Services setup program. Before using SMS
the first time with PC Cards, you should run
this program. It is accessed from the PC
CARD main screen by clicking on the
Setup PC Card button. (See Section 5 of
this manual“Establishing
Communications”.)
Although the SMS PC Card Setup program may
be all that is required for successfully setting up
and running PC Cards with SMS, the following
notes are provided for a more detailed
understanding of the way PC Cards are used.
These notes are intended as a supplement to
the documentation shipped with any PCMCIA
drivers you may have.
For some Card Services without MTD support,
SMS needs a memory range of 32K allocated to
Card Services. It uses the 32K memory to read
and write to the card, while newer versions of
Card Services configure this for you
automatically, some older versions require the
user to set this up. Notes are given below on
how to set up some older versions of Card
Services.
Card Services has the ability to map a region of
the PCMCIA card to PC address space in the
high-memory area. This is the same address
space which is mapped to extended memory by
EMM386 for programs loaded high with
DEVICEHIGH or LOADHIGH. If all of this
address space is allocated, then Card Services
will not be able to map regions to SRAM cards,
and SMS will fail with an error. The following
information explains what to do if you have this
problem.
Card Services does not use the actual memory
in the high memory area, but it does use that
address space. There is no memory in that
address space. If you have EMM386 loaded
(which you
will have if you load other drivers,
etc., into high memory) you must exclude an
area of memory for Card Services use.
The line in your CONFIG.SYS which sets up
EMM.386 will look something like:
DEVICE=C:\DOS\HIMEM.SYS
DEVICE=C:\DOS\EMM386.EXE NOEMS
If, after studying other memory requirements
and memory use such as the address space
used by your video card (the program MSD,
supplied with MSDOS 6 can be used for this
purpose), you decide that the memory area
D0000 to DFFFF may be used by Card
Services, then change your lines as shown
below.
DEVICE=C:\DOS\HIMEM.SYS
DEVICE=C:\DOS\EMM386.EXE NOEMS /X=D000-DFFF
(Note that there is one 0 and one F missing
from the memory address you enter in
CONFIG.SYS. This is because EMM386
expects a segment address. Each segment
contains 16 bytes, 0-15 (0-F), and so the
beginning address in the segment D000 is
D0000 and the ending address of the segment
DFFF is DFFFF.)
Some graphics cards require memory to be
excluded in the same way. More than one
region of memory may be excluded by repeated
use of the /X= option.
The EMMExclude line in SYSTEM.INI should
reflect the EMM386 exclude range. For
example:
[386enh]
EMMExclude=D000-DFFF
After setting aside this memory for use by Card
Services, you may need to configure Card
Services itself to use this region. Please consult
the documentation provided with your specific
Card Services drivers.