run - 2022.1 English

Vivado Design Suite Tcl Command Reference Guide (UG835)

Document ID

UG835

Release Date

2022-05-05

Version

2022.1 English

Run the simulation for the specified time

Syntax

run [‑all] [‑quiet] [‑verbose] [<time>] [<unit>]

Usage

Name	Description
`[-all]`	Runs simulation till a breakpoint, an exception or no events left in the queue
`[-quiet]`	Ignore command errors
`[-verbose]`	Suspend message limits during command execution
`[<time>]`	Length of simulation time
`[<unit>]`	Unit for time from the following time units: fs, ps, ns, us, ms, sec

Description

Run the current simulation from the current time to the specified time, or until the simulation stops.

A running simulation can be stopped at a predetermined time, at a specific breakpoint in the HDL source code, by encountering a TRUE condition, by evaluating the circuit until there are no remaining events, or by encountering a runtime error such as an out-of-bounds value.

The run command instructs an existing simulation to run for a specified length of time, or until there are no remaining events. The time is specified as a floating point number indicating a period of time in the current simulation units, or in the specified units.

Arguments

-all - Run the simulation until no event is left in the event queue, a breakpoint or valid condition is encountered, or a run time exception occurs.

Note: This is the default when no other options are specified.

-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.

Note: Any errors encountered on the command-line, while launching the command, will be returned. Only errors occurring inside the command will be trapped.

-verbose - (Optional) Temporarily override any message limits and return all messages from this command.

Note: Message limits can be defined with the set_msg_config command.

<time> - (Optional) Specifies the length of the simulation run time. The time can be specified as a floating point number, or using the keyword all.

Note: Using the keyword all is the same as using the -all option.

<unit> - (Optional) One of the following time units (with or without space between time and unit) can be specified: fs, ps, ns, us, ms, or sec. The default is the value of time_unit.

Examples

The following example runs an existing simulation for the specified simulation run time, using the default units (ns):

run 1000

The following example runs an existing simulation for 300 microseconds (us):

run 300 us

The following example runs the current simulation until no event is left in the event queue, a breakpoint or valid condition is met, or a simulation runtime error occurs:

run -all