wgl pattern

[Asmith]

Hello,

I have LAB View FPGA and a 7833R IO card. Is there a way to input  standard WGL files ?

Thx

[RavensFan]

What is a WGL file?

[Asmith]

WGL (Wiggle)- Waveform Generation language  is a data description language.

[Stephanie B]

Hi,

Currently there isn't a way to import a WGL file. What do you want to do with it? Is it possible to use any other format?

Stephanie

[Asmith]

Hello,

I would like to automaticaly generate the test patterns from this file to run the test scan on a custom IC.

 TetraMax  makes a tool :

Scan Converter  is a low cost option for converting scan tests, Serial or Parallel, into tester formatted patterns and timing. The tool accepts either WGL or STIL formats which are the most widespread vector formats produced by today's leading ATPG tools, such as Mentor Graphics' FastScan, Synopsys' TetraMAX and similar.
Scan Converter  creates all files needed to load and run different testers, such as Agilent, Teradyne and LTX.

This would be the WGL file for a 2 input AND gate.

waveform embedded

signal

"A" : input;

"B" : input;

"Z" : output;

end

timeplate "_default_WFT_" period 100ns

"A" := input [0ps:S];

"B" := input [0ps:S];

"Z" := output [0ps:X, 40ns:Q'edge];

end

pattern group_ALL ("A", "B", "Z")

{ non_scan_test }

{ pattern 0 }

{ capture }

vector("_default_WFT_") := [ 1 1 X ];

vector("_default_WFT_") := [ 1 1 1 ];

{ pattern 1 }

{ capture }

vector("_default_WFT_") := [ 0 1 X ];

vector("_default_WFT_") := [ 0 1 0 ];

{ pattern 2 }

{ capture }

Read netlist embedded.v -delete

Run build embedded

Set drc -nofile

Run drc

Set pattern external func_pat.wgl

Thanks!

[Rams_Rams]

Hi,
Is there any free parser for WGL file. If so, please reply me

regards
Rams

[eit1167]

Hi,

there is some tool "home made" used by test engineers and some big company has developped extended programs to convert from/to Stil-WGL-Vcd-ASCII formats to all main ATE systems. (Verigy,Ltx,Teradyne,Np,Sz,..)

Unfortunately, these tools are just for internal use.

In addition, there is some small Ate vendor (Es: Ynovis) that build tester loading directly STIL-vectors, and for this reason they have the problem to convert from all the other formats (from VCD,ASCII -> to STIL). To do that they use short perl-script that should (I say should ... cause never tried) work!

Maybe you could use the script that load WGL files and modify it to obtain the output you need.

I can send you the script, let me know if you.

Eit1167

[Rams_Rams]

Hi Eit1167, Thank you for the information. Can you please send me the script so that i can try it out. Regards Rams_Rams

[eit1167]

Hi Rams^2,

here attached.

By the way, i'm interested too, let me know if it works (you need to convert scan or standard vectors?)

bye

Eit1167

[Savageaggie]

Hey guys,

National Instruments has been working with Test System Strategies Incorporated (TSSI), an NI Alliance Partner to develop a new pattern conversion tool called the TSSI TD-Scan for National Instruments to enable engineers to import WGL and STIL vector formats into PXI. 

The software coverts digital test vectors from either WGL or STIL to work directly with NI 654x and NI 655x digital devices.  The software tool is available from TSSI and is included as a 30-day evaluation package with NI high-speed digital I/O PXI hardware.  You can also request an evaluation version at the link above.

To learn more about the tool, check out the following whitepaper and webcast: 

Using TD-Scan with National Instruments High Speed Digital Devices (NI 654x and 655x)

Importing WGL/STIL files with the TSSI TD-Scan for National Instruments (webcast) 

Thanks,

Scott Savage

Semiconductor Market Development Manager - Semiconductor Test

National Instruments