THE OCULUS-F/64 FRAME GRABBER User's Manual

• Configure your memory manager to not use the memory block you wish to
use. As examples, various memory managers are described below.
MS-DOS EMM386 (Expanded-Memory Emulator)
Modify the command line by adding the exclude option:
(i.e. device=EMM386.EXE x=D000-DFFF)
386MAX (Qualitas)
Add the following line to the file 386max.pro:
RAM = D000-DFFF
QEMM-386 (Quarterdeck Expanded Memory Manager-386)
Add the following command line option:
x=D000-DFFF
• Configure the Oculus-F/64 board to use memory mapping at starting
address D0 and that the memory map size is 64k.
Warning: Errors in memory mapped interfacing configuration can crash
your computer system when executing Oculus-F/64 applications.
WINDOWS MEMORY MAP SETUP EXAMPLE
Oculus-F/64 windows applications such as F64PRO.EXE can utilize memory
mapped interfacing, where the memory mapped block is located below the 1
Mbyte boundary or above. The requirements are defined below.
Memory Mapping Below 1 Mbyte: In this case all of the setup requirements
for DOS applications must be performed, as stated in the previous section.
In addition, windows must be made aware of the memory range required, so as
to prevent a conflict. For the same example as above where the required
memory map block is D0000 to DFFFF, modify SYSTEM.INI (located in your
windows directory), as shown below.
In SYSTEM.INI under the section [386Enh] add the statement:
EMMExclude=D000-DFFF
Memory Mapping Above 1 Mbyte: In this case the constraints described for
DOS and windows application for memory mapping below 1 Mbyte, do not
exist. The only requirement is that there is no physical memory located in the
address space that will be used for memory mapping. This includes system
memory and memory located on other plug in boards. Additionally, the
Oculus-F/64 has an upper limit for the start of the memory mapped block at
FFE000 (8k below the 16 Mbyte address) and the memory mapped block can
not go above 16 Mbyte. Note that the 16 Mbyte limitation is because the PC
ISA 16 bit expansion slot can not address above that boundary.
Coreco Inc., Installation and Configuration Page 2-19