Altera Quartus II Scripting Manual do Utilizador descarregar pdf (Página 629)

100

101

Chapter 3: Tcl Packages & Commands 3–499

timing_assignment

Example

## Specify the required minimum and maximum output

## delays on the output pin named "opin" relative to

## the rising edge of the reference clock named "clk1"

set_output_delay 2ns -to "opin" -clk_ref "clk1"

## Or, equivalently,

set_output_delay 2ns -to "opin" -clk_ref "clk1" -min -max

## Specify the required minimum output delay on

## the output pin named "opin" relative to the

## falling edge of the reference clock named "clk1"

set_output_delay 2ns -to "opin" -clk_ref "clk1" -min -clock_fall

## Specify the required maximum output delay on

## output pins with names that start with "o"

## except those that start with "obus"

assignment_group "output_pins" -add_member "o*" -add_exception "obus*"

set_output_delay 2ns -to "output_pins" -max

MHz MegaHertz

GHz GigaHertz

Time Unit Description

1 2 ... 624 625 626 627 628 629 630 631 632 633 634

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