Scripting

set_output_delay (Tcl Script API Function)

The set_output_delay function has the following format:

Syntax set_output_delay  -clock <clock_name>  <delay_value>  <output_pin_list>

Arguments
-clock <clock_name> Clock to which the specified delay is related. Required.
<delay_value> Output delay value for the specified pin list. Required.
<output_pin_list> List of output pins for which the output delay is to be applied, for example, {pin1 pin2 ...}. Required.

Return Value
Code Name Code String Return
TCL_ERROR 1

Usage: set_output_delay -clock <clock_name> <delay_value> <output_pin_list>
TCL_ERROR 1

Pin list <name> cannot be specified again
TCL_ERROR 1

Missing output delay value
TCL_ERROR 1

Missing -clock option
TCL_ERROR 1

<value> is not a legal output delay value
TCL_ERROR 1

Output delay value already exists
TCL_ERROR 1 Unknown option <name>
TCL_ERROR 1 One or more Quartus® II settings and configuration files are not writable
TCL_ERROR 1 Quartus II settings and configuration files may be corrupted
TCL_ERROR 1 Unknown problem in processing the command
TCL_ERROR 1 Unknown command-line option <name>
TCL_ERROR 1 A Tcl transaction is in progress and must be completed before executing:
TCL_ERROR 1 Project has no active compiler setting
TCL_ERROR 1 No project is currently open
Description Specifies the external output delay of a set of output or bidir pins with respect to the designated clock. The delay applies to both the positive and negative edges of the clock. The specification is internally translated into the equivalent Quartus II software tCO requirements.


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