| ??? 12/01/09 15:32 Read: times |
#171342 - ABSOLUTELY? ... I'm not so sure ... Responding to: ???'s previous message |
Andy Peters said:
Barry Demers said:
Since I am currently pursuing a logic design, Would ModelSim be a good option for working with and, or, not gates and being able to watch timing issues, etc? ModelSim is an HDL simulator. As such, you will need HDL models of whatever you want to simulate. And it's digital only -- no analog. It will do timing simulations, assuming you include the worst-case timing information in your models, or you back-annotate with an SDF file. But it won't do timing ANALYSIS, which is a different problem. So, if your logic design is going to live in an FPGA or CPLD, (and it probably will, it ends up being less expensive and more reliable than old-skool 74xxx-series TTL), While I have little doubt, myself, that this is the case, have you any authoritative source that can be cited to support this notion? HDL simulation is a requirement.
Of course you will need to learn an HDL. 2 Monitors?????????? Dang! Don't these authors ever use their own stuff? Two monitors are ABSOLUTELY necessary. HDL in one display (a couple of emacs windows, etc) and the ModelSim wave window in the other. -a I'm not persuaded that multiple monitors are ABSOLUTELY necessary, having done what you describe via (A) multiple monitors on multiple computers, and (B) large single monitor on multiple computers, and (C) multiple windows on a single computer. Now, I understand it's a matter of preference choosing what to use. Perhaps monitor size makes a difference, too. It may be easier or more convenient for you, but, for example, my own preferences spring from the fact that I still find the non-windows-based app's I use every day far more productive than the Windows-based ones that do the same things, yet the multi-computer-single-monitor model allows me to display mixes of Windows and non-Windows app's without having to run a multi-OS scheme on my computer. That, of course, provides yet another alternative, but I haven't yet gone there. One of my colleagues has run DOS, Windows, and Linux on the same box with a single monitor, and with multiple monitors, and found that to be a bit "sticky." Now he uses the multi-computer model with a single large monitor, and finds that quite satisfactory. I got the notion from him after seeing how seamlessly it allows him to do what's necessary. After all, PC's cost a small fraction of what a decent-size monitor costs. RE |
