xilinx+modelsim total newbie

Mar 25, 2005 1 Replies

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hacka 21 years ago

Hi, I have downloaded Xilinx ISE 7.1 webpack and Modelsim 6 free edition. I need Xilinx for my digital circuits course. During the course laboratory we were using Xilinx foundation 2.1. After designing simple circuit I have attached some probes to inputs and output and then in simulator bound some keys in order to change input signals' from 0 to 1 and test the output.

The problem is I don't know how to do the same in 7.1 + ModelSim. First of all there is no such thing as "simulation toolbox" as in 2.1. I was able to run Modelsim and apply clocks to input signal but it is not what I want. Is it possible to change input signals from 0 to 1 etc on the fly? With keyboard for example? Cheers, Mike, leet.geezerDONT_SPAM_ME snipped-for-privacy@gmail.com

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Simon Peacock 21 years ago

First.. Modelsim is designed to provide repeatable testing.. this means you write test benches and you don't toggle lines manually. You can force lines about but you are probably best served by learning how to create and use test benches. It is also OK to have several test benches each of which tests different functionality. If you want to graduate and be useful you will need to learn this methodology.

Simon

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