We use a generate statement to instantiate multiple copies of our DUT in our testbench.
I am trying to add an $sdf_annotate task within the generate statement, to annotate a particular instance buried in the DUT.
So, question 1: is there anything wrong with this approach?
Assuming that the approach itself isn't flawed, I'll continue. The fourth argument to the $sdf_annotate system task is for a log file. Since there's multiple copies of the thing I want to annotate, I'd like to have a log for each one. So I thought I'd use the genvar to create a string, but that's not working for me.
Here's the example code:
for (genvar i = 0; i < NUM_DUTS; i++) begin : gen_duts
dut_name dut_instance (.*)
$sdf_annotate(...path to sdf file..., dut_instance.path.to.thing.i.want.to.annotate, , $sformat("sdf_%0d.log", i));
end : gen_duts
The error I get is:
Error-[IAFSDFA] Illegal argument for $sdf_annotate task
...path to testbench source...
Argument no. 4 must be a character string.
$sdf_annotate("...path to sdf file...",
So, question 2: how can I create a string within a generate statement that I can pass to the $sdf_annotate system task?
Any help is appreciated! Thanks in advance.