User`s manual

Signals window
ModelSim Xilinx User’s Manual ModelSim XE Graphic Interface 7-149
• Kind: Drive
Attaches a driver to the signal and drives the specified value until the signal or
net is forced again or until it is unforced with a noforce command
(CR-67). This
value is illegal for unresolved VHDL signals.
• Kind: Deposit
Sets the signal or net to the specified value. The value remains until there is a
subsequent driver transaction, or until the signal or net is forced again, or until
it is unforced with a noforce command
(CR-67).
• Delay for
Allows you to specify how many time units from the current time the stimulus
is to be applied.
• Cancel After
Cancels the force command
(CR-56) after the specified period of simulation
time.
• OK
When you click the OK button, a force command
(CR-56) is issued with the
parameters you have set, and is echoed in the Main window. If more than one
signal is selected to force, the next signal down appears in the dialog box each
time the OK button is selected. Unique force parameters may be set for each
signal.
Adding HDL items to the Wave and List windows or a logfile
Before adding items to the List or Wave window you may want to set the window
display properties (see "Setting List window display properties"
(7-131)). Once
display properties have been set, you can add items to the windows or logfile in
several ways.
Adding items from the Main window command line
Use the View menu with either the Wave, List, or Log selection to add
HDL items to the Wave window
(7-164), Saving the Dataflow window as
a Postscript file
(7-127)or a logfile, respectively.
The logfile is written as an archive file in binary format and is used to
drive the List and Wave window at a later time. Once signals are added
to the logfile they cannot be removed. If you begin a simulation by
invoking vsim
(CR-148) with the -view <logfile_name> option, VSIM
reads the logfile to drive the Wave and List windows.