Technical data

Tcl/Tk and ModelSim
6-48 ModelSim EE/SE Tutorial
The result is a traffic intersection interface similar to this illustration:
wm widget
Calls to the
operating
system window
manager to
create the
"traffic"
window.
canvas widget
The background,
lines and traffic
lights are created
with the canvas
widget.
button widgets
Each button
invokes the
indicated VSIM
run or break
command.
label widget
A static label is
added to the end of
the connect_lights
procedure to
indicate connection
to the simulator.
entry widget
The entry widget
(contained within
a frame widget)
can facilitate
entry, or in this
case, provides a
display for a VSIM
examine
command.
frame and
scale widget
A scale widget
within a frame
widget creates
an analog entry
device for a
minimum to a
maximum value
and invokes the
VSIM force
command