--- Quote Start ---
In Modelsim, we can create a a working design library to do simulation, we can also create a project to do simulation. What is difference between them?
As I know, in normal case for simple design simulation, we can only create a design library. But for a large design simulation, project is preferred.
--- Quote End ---
Modelsim tracks libraries via either; modelsim.ini or the project file (.mpf).
I never use projects, but always use modelsim.ini files. I have several versions of Modelsim-ASE and Modelsim-SE installed, and they all have separate Modelsim libraries (since the binary libraries are not compatible between versions), and modelsim.ini files to track the libraries.
Libraries are created using the command:
vlib mylibrary
a mapping in modelsim.ini is created using
vmap mylibrary <path to mylibrary>
I have never found a use for modelsim project files, or much use for the GUI menus for that matter. Tcl scripts can do everything.
I've posted a few examples of modelsim Tcl scripted designs, look at the sim.tcl scripts in them. They are very basic, but give you something to start with.
http://www.alteraforum.com/forum/showthread.php?t=32386 This one is more complicated (Tcl scripts for both Quartus and Modelsim):
http://www.alteraforum.com/forum/showthread.php?t=35678 If this is not quite what you were asking, please re-phrase your question to be clearer.
Cheers,
Dave
Honored Contributor
