Hi. Since the built-in simulator now is gone, I missed something that I could do quite easily with it. I have been searching for days now about how to do it with ModelSim-Altera.
Here's my problem. As an example I gave 1 simple dataflow Verilog code using multiplier (a megafunction):
module mult(a, b, c);
input [31:0] a;
input [31:0] b;
output [31:0] c;
assign c = a * b;
endmodule
With the built-in simulator it was quite easy to run a *timing* simulation to get some estimation of the delay of the multiplier as I get from the following snapshots:
Simple Multiplier timing simulation:
http://www.muhazam.com/public-prm/alteraforum001.png Simple Multiplier timing simulation [zoomed in]:
http://www.muhazam.com/public-prm/alteraforum002.png From the snaps I can estimate that when a = 5589, then when b changed from 0 to 34970, it took c = a * b, around 12ns to get the stable final answer.
I have tried so many tutorials, YouTubes, PDFs to get something that accurate using ModelSim-Altera, including that Gate Level Timing Simulation with Cyclone II libraries loaded. But still in vain. ModelSim just doesn't give that impressive picture of signal changes as in the old built-in one.
Can someone help?
