Forum Discussion
8 Replies
- Altera_Forum
Honored Contributor
The simulator went away with versions 9-12.
But the built in simulator is not that good. modelsim simulator is much more powerful (and industry standard). - Altera_Forum
Honored Contributor
Thanks a lot for your prompt reply. You mentioned that, the simulator is not that good. Good or bad whatever it is: I need an in-built simulator. Please tell me whether there is an in-built simulator in web version 12 and how to use it.
- Altera_Forum
Honored Contributor
There is no simulator in Version 12. You will have to install Modelsim.
- Altera_Forum
Honored Contributor
Both posts are right. You can use the University Program qsim tool if you want to keep the familiar waveform stimulus definition and result representation. But it's just a wrapper around ModelSim AE.
But ModelSim AE is now seamlessly integrated with Quartus and can be operated quite easily. - Altera_Forum
Honored Contributor
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? - Altera_Forum
Honored Contributor
--- Quote Start --- google: http://www.altera.com/education/univ/software/qsim/unv-qsim.html http://www.youtube.com/watch?v=5s3opm3wrhy --- Quote End --- Billion billion thanks Bertulus. You are really a life saver. - Altera_Forum
Honored Contributor
Hi Bertulus !! Thanks a lot for the useful info. You saved my life.