User guide

20 www.xilinx.com System Generator for DSP Getting Started Guide
UG639 (v 14.3) October 16, 2012
Chapter 2: Installation
Setting the Number of Entries
The cache entry database stores a fixed number of entries. The default is 20,000 entries. To
set size of the cache entry database, set the SYSGEN_CACHE_ENTRIES environment
variable to the desired number of entries. Setting this number too small will adversely
affect cache performance. Set this number to a higher value when working on several large
designs.
You can use the
xlCache function to manage and inspect the properties of difference caches
used by System Generator. A detailed description of this function can be found under the
topic
System Generator Utilities.
Displaying and Changing Versions of System Generator
It is possible to have several versions of System Generator installed. The MATLAB
command xlVersion displays which versions are installed, and makes it possible to
switch from one to another. xlVersion is useful when upgrading a model to run in the
latest version of System Generator.
Entering "xlVersion" in the MATLAB console displays the version of System Generator
that is installed.
Available System Generator installations:
Version 14.1.4301 in C:/Xilinx/14.1/ISE_DS/ISE/sysgen
Current version of System Generator is 14.1.4301