21.8.45 remove_output_delay
(Ask a Question)Description
Removes
an output delay by specifying both the clocks and port names or the ID of the
output_delay constraint to remove. If the clocks and port names do not match an
output delay constraint in the current scenario, or if the specified ID does not
refer to an output delay constraint, this command fails.
Note: Do not specify both the clock and
port names and the constraint ID.
remove_output_delay -clock clock_name port_pin_listremove_output_delay -id constraint_IDArguments
| Parameter | Type | Description |
|---|---|---|
clock | string | Specifies the clock name to which the specified output delay value is assigned. Note: You must specify clock name as {CLK}, not [get_clocks {CLK}]. |
port_pin_list | list of strings | Specifies the port names to which the specified output delay value is assigned. |
id | integer | Specifies the ID of the clock with the output_delay value to remove from the current scenario. You must specify either both a clock name and list of port names or the output_delay constraint ID. |
Error Codes
| Error Code | Description |
|---|---|
| None | Parameter -clock has illegal value. |
| None | Invalid clock/port arguments. |
| None | Only one argument is needed. |
Supported Families
| PolarFire® |
| PolarFire SoC |
| SmartFusion® 2 |
| IGLOO® 2 |
| RTG4™ |
Exceptions
You cannot use wildcards when specifying a clock or port names, either alone or in an accessor command.
Example
The following example removes the output delay from CLK1 on port out1.
remove_output_delay -clock {CLK1} [get_ports out1]