DS-FND-BSX-PC Xilinx Inc, DS-FND-BSX-PC Datasheet - Page 168

• Manufacturer Part Number: DS-FND-BSX-PC
• Description: FOUNDATION BASE SYS W/SYN EXPRES
• Manufacturer: Xilinx Inc
• Type: Foundation Systemr

Specifications of DS-FND-BSX-PC

• For Use With/related Products: Xilinx Programmable Logic Devices
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 122-1185

Foundation Series 2.1i User Guide
Using Constraints in an HDL Design
6-12
Creating a New Library
Declaring and Using User Libraries
Express Constraints Editor
User libraries are stored as part of the Foundation project. Following
are the basic steps to create new libraries in HDL Flow projects.
1.
2.
3.
4.
In the VHDL or Verilog code, user libraries for Foundation projects
are declared and used just like system libraries such as IEEE. For
example, to access the entities defined in the library mylib.vhd, use
the following VHDL syntax:
User library directories that are part of a project are automatically
searched when referenced in VHDL.
The following sections provide information on adding constraints to
HDL designs.
Foundation Express users have access to the Express Constraints
Editor. The Express Constraints Editor includes a window with five
different tabs. The following three tabs represent constraints that can
be applied to the design prior to synthesis: Clock, Paths, and Ports.
•
Select Synthesis
Enter a name for the new library and click OK. The new library is
added to the list of project files on the Files tab.
To add files to the new library, right click on the library name in
the Files tab list.
Select the Add Source Files to “library_name” option to access
the Add Document dialog window where you can select the files
to be added to the library. The files are analyzed automatically as
they are added.
library MYLIB
use MYLIB.all;
The Clocks tab allows you to specify overall speeds for the clocks
in a design.
New Library from the Project Manger.
Xilinx Development System