TMS570LS3137: HET IDE VCD Stimuli Signal identifiers

Appendix A, Table 1 of SPNU483A, right most column has the names if you manually create them.
I would try creating it this way:
- first draw one of your input signals in Synapticad like the tutorials show
(in synapticad you definitely use the name in the table...)
- save your stimulus as a VCD
- simulate to make sure it's working as expected.

Then you can look at this VCD as a reference to get the names right plus all the other VCD structure stuff...

I think you are getting confused by looking at a VCD file which has something like this:

$scope module SystemC $end
$var wire 1 aaa HETCLK $end
$var wire 1 aab LOOP_RESOLUTION_CLK $end
$var wire 1 aac HIGH_RESOLUTION_CLK $end
$var wire 32 aad A [31:0] $end
...
$upscope $end

$dumpvars
1aaa
0aab
1aac
b0 aad
b0 aae
b0 aaf

So you need to interpret like this: aaa is abbreviation in THIS VCD OUTPUT for HETCLK and that's defined by:
$var wire 1 aaa HETCLK $end

The line:
$scope module SystemC $end

Is not a set of column headers for $var, $wire, 1 aaa ...

It's more of a :

module SystemC
wire HETCLK;
wire LOOP_RESOLUTION_CLK;
endmodule

type structure that is represented by this.

Might be worth finding a reference for the VCD file format if you want to manually create the VCD file...

But again Synapticad knows how to hook it up and some of what you see in naming has to do with the (invisible) underlying system C model that instantiates HET in a wrapper for Syncad so it's not really obvious what name to put when you manually make the VCD.

I can confirm 100% though that the names in Appendix A Table 1 right most column will work if you create them as a signal in Synapticad as the tutorial shows for drawing your stimulus - and then saving that as a VCD will show you if any prefixes are added/removed when going to VCD.

Thanks - great job figuring that out and tying it all together.  

So I think you found two documentation issues for us both with the Nov 2011 User's Guide.

It looks like that guide is a little out of date and not matching the 2016 release of the HET IDE

I am giving you trouble because I'm in the course of developing a SIL3 application with a TMS570 and I need to develop automated testing which involves Test Vector generation. I need complete documentation to justify my testing/design decisions, I can fill in the gaps (which I have already). It would be great if this thread can be of any help to somebody else in the future (in a similar situation).

Maybe I don't have the latest document, but I have only been able to find SPNU483 RevA (2011).

• In SPNU485 RevC (2016) page 38 there's a link which points to SPNU483 RevA (2011) via a redirection (http://www.ti.com/lit/pdf/SPNU483).
• A search for SNPU483 takes me to RevA again.
• The URL links that the HET IDE installer places in the start menu points to the same RevA document (http://www.ti.com/lit/pdf/spnu483

Regards,

Santiago Rodriguez
Modutram Mexico