Answers Database
XABEL: How to get test vectors (.TMV file) into an XC9500 JEDEC file
Record #1706
Product Family: Software
Product Line: Aldec
Product Part: Foundation HDL Editor
Problem Title:
XABEL: How to get test vectors (.TMV file) into an XC9500 JEDEC file
Problem Description:
Urgency: Standard
General Description:
In XABEL-CPLD, test vectors in a top-level ABEL file are automatically
written into XC9500 JEDEC files.
When using XACT-CPLD or the new M1 tools to fit an ABEL design,
the version control directory structure imposed by the Xilinx Design
Manager interferes with this process.
How can test vectors from a top level ABEL file get included within
a 9500/XL Jedec file?
Solution 1:
The M2.1i and M1.x CPLD fitters as well as the older XACT-CPLD
fitter contain the software necessary to write test vectors into JEDEC
files.
The XABEL compiler creates a <design>.tmv file which contains
test vector information whenever it compiles a design containing user
test vectors.
The XC9500 fitter transfers this test vector info into the JEDEC file
whenever it finds a .tmv file with the same name as the design in the
design directory.
With XABEL-CPLD, the fitter finds the .tmv file where it expects it...
in the current design directory.
With XACT-CPLD, M1, and M2.1i the Xilinx Design Manager creates a
subdirectory (typically named xproject\v1_0\rev1 or xproj\ver1\rev1)
and runs the fitter there.
The fitter can no longer find the .tmv file in the root design
directory where ABEL created it. The .tmv file must be copied
into the rev1 directory for test vectors to be included in the
JEDEC file.
To include test vectors in a JEDEC file created by XACT-CPLD or
the M1 fitter do the following:
1. If you are using Foundation, make sure the name of your
top-level ABEL source file and the name in the MODULE statement
within that source file both match the name of your Foundation project.
(This is a special requirement for the test vector solution to work.)
2. Compile the top-level ABEL design file as usual.
The ABEL compiler will create <project_name>.tmv containing your
test vector info. It will also create <project_name>.xnf or
<project_name>.edn.
3. Invoke the Xilinx Design Manager. Perform Design -> Translate.
With M1 simply stop the flow after Translate.
The Design Manager creates either;
xproject\v1_0\rev1 directory containing the <project_name>.xff file.
or xproj\ver1\rev1 directory containing the <project_name>.ngd file.
The Design Manager will create different directory names as you
iterate your design.
4. In File Manager or explorer, copy the <project_name>.tmv file from
the root project directory into the rev1 subdirectory (or the most
recently created rev subdirectory).
5. In the Xilinx Design Manager, invoke the Flow Engine and Run
the design as usual.
The Design Manager will create the <project_name>.jed programming
file in the root project directory (automatically copies it up from the rev
directory). The JEDEC file will contain the test vectors derived from the
source file.
Note: This procedure assumes your design is completely
ABEL-based.
End of Record #1706 - Last Modified: 09/10/99 15:20 |
