Set capacitance on output ports and output pins
Syntax
set_load [‑rise] [‑fall] [‑max] [‑min] [‑quiet] [‑verbose] <capacitance>
<objects>
Usage
Name | Description |
---|---|
[-rise]
|
Specify the rise capacitance value (for ports only) |
[-fall]
|
Specify the fall capacitance value (for ports only) |
[-max]
|
Specify the maximum capacitance value |
[-min]
|
Specify the minimum capacitance value |
[-quiet]
|
Ignore command errors |
[-verbose]
|
Suspend message limits during command execution |
<capacitance>
|
Capacitance value |
<objects>
|
List of output ports and output pins |
Description
report_power
command, but is not used during timing analysis.
set_units
command.This command operates silently and does not return direct feedback of its operation.
Arguments
-max
- (Optional) Provided for SDC compatibility. Ignored by the Vivado® tools.
-min
- (Optional) Provided for SDC compatibility. Ignored by the Vivado tools.
-rise
- (Optional) Provided for SDC compatibility. Ignored by the Vivado tools.
-fall
- (Optional) Provided for SDC compatibility. Ignored by the Vivado tools.
-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.<capacitance> - (Required) The value of the load capacitance. The value is specified as a floating point value >= 0. The default is 0.
<objects>
- (Required) A list of output port objects to assign the capacitance load to. All outputs in the design may be obtained using the all_outputs
command.
Examples
set_load 5.5 [all_outputs]
set_load -rise -fall 8 [get_ports wbOutput*]