Log simulation output for specified wire, signal, or reg for viewing using Vivado Simulators waveform viewer. Unlike add_wave, this command does not add the waveform object to waveform viewer (i.e. Waveform Configuration). It simply enables logging of output to the Vivado Simulators Waveform Database (WDB).
Syntax
log_wave [‑recursive] [‑r] [‑verbose] [‑v] [‑quiet] <hdl_objects>...Usage
| Name | Description |
|---|---|
[-recursive]
|
Searches recursively for objects |
[-r]
|
Searches recursively for objects |
[-verbose]
|
Displays all warnings |
[-v]
|
Displays all warnings |
[-quiet]
|
Ignore command errors |
<hdl_objects>
|
Which hdl_objects to trace |
Categories
Description
Log simulation activity for the specified HDL objects into the waveform database file (.wdb) for viewing using AMD Vivado™ simulator waveform viewer.
In the Vivado simulator, an HDL object is an entity that can hold a value, such as a wire, signal, or register.
Unlike add_wave, this command does not add the waveform object to waveform configuration. It simply enables logging of waveform activity to the Vivado simulator waveform database (WDB). See the Vivado Design Suite User Guide: Logic Simulation (UG900) for more information.
This command returns nothing.
Arguments
-recursive | -r - (Optional) Recursively log the waveform activity of the specified HDL objects, and the children of the specified HDL objects.
-quiet - (Optional) Execute the command quietly, returning no messages from the command. The command also returns TCL_OK regardless of any errors encountered during execution.
-verbose - (Optional) Temporarily override any message limits and return all messages from this command.
set_msg_config command.<hdl_objects> - (Required) Specifies the HDL objects to include in the Vivado simulator waveform database file. The level of hierarchy is also represented in the hdl_objects pattern. For instance /tb/UUT/* indicates all HDL objects within the /tb/UUT level of the design.
Examples
The following example logs the waveform activities for the specified HDL objects.
log_wave -r [get_objects /testbench/dut/*]