EE 3060 - FAQ

Modelsim won't compile this: nibble = word[pos+3:pos]. What do I do? Answer.

Modelsim won't compile this: word[pos+7:pos] = byte. What do I do? Answer.

The simulator gives me "Error: === operator invalid for REAL" messages. To make matters worse, it doesn't give a line number! Why? Answer.

Questions on Synthesis

Nothing happens when I try to start Leonardo using the slide-up menu. If I try to start it from a shell it ends after printing "Setting up registry" and "Abort". There are no problems when synthesizing from Emacs with S-F9 or using the tclscript, syn.tcl, but I want my GUI!!! Answer.

How do I simulate synthesized modules? Answer.

Questions on Exams

What can I bring to the midterm exam? Answer.

Questions on Specific Assignments

In Spring 2001 Homework 4, can I base my solution on the posted solution to Homework 3? Answer.

In the bean counter what does

   assign next_bean_time = new_clump_pd2 ? {1'b0,gap_timer[15:1]} :
                           bean_time === 0  ? gap_time : bean_time-1;

Questions on the ModelSim Software

When I try to start the simulator using the slide-up menu nothing happens. Answer.

When I try to run the simulator, **poof**, the windows disappear! What happened? Answer.

When I tried to compile Verilog a dialog popped up titled "Error in Tcl Script" containing an unhelpful error message. What's going on? Answer.

I tried using the array of instances syntax shown in the Ciletti book on page 49   (nor [0:7](y,a,b);)   but the compiler won't accept it. Not only that, it won't accept a repetition multiplier used with the concatenation operator (Ciletti, page 108, example 4.27b), for example,   ( assign ohoneohone = {2{2'b01}};).   What's wrong? Answer.

Questions on the Workstations, Operating System, etc.

Which hosts can I telnet into? Answer.

Can I run the simulator and other graphical software from my PC or Mac at home? Answer.

My workstation has what looks like a floppy disk drive. How can I copy files to a floppy disk? Answer.

I get disk quota exceeded messages. Should I be concerned? Answer.