Simulate a Xilinx project with Questa sim simulator

I normally used to simulate my Xilinx projects with Isim simulator. When the Project is heavy its bit difficult to debug with primary Isim simulator. I moved to  Questa sim simulator which is a very advanced simulator for HDL projects verification provided by Mentor graphics. This is an advanced version of usual Modelsim simulator.

After installing Questa sim, you need to provide the license file using an environment variable.

Go to Control panel -> system and security -> system -> advanced system settings and click the button Environment variables. Click the New button under user variables in order to create a new environment variable. Fill up the following values in the pop up window and click ok.

Variable Name: LM_LICENSE_FILE

Variable Value: <path to your licence file>

Start the Questa sim simulator and you can see that its working fine.

Now it’s time to configure Xilinx project to use Questa sim simulator. I must thank my colleague Geethan Karunarathne for helping me on this.

Select the custom editor for verilog in Xilinx as Sublime Text

I normally used to edit my Xilinx verilog projects in the ISE editor itself. But my favorite editor for all the programming stuffs is Sublime text. I wanted to edit my verilog files also in Sublime text. Here is the procedure which I followed.

1. Go to Edit -> Preferences and select Editors under the category of ISE general. 

2. Select custom in the Editor combo box and Add {C:\Program Files\Sublime Text 2\sublime_text.exe} $1 to Command line syntax field as shown in the figure below.