Achronix ACE Version 5.0 Manuel d'utilisateur télécharger pdf (Page 285)

Analyzing Critical Paths Chapter 4. Tasks

• Asynchronous devices: By default, highlight colors are arranged in a gradient from red to yellow

according to frequency. The lowest frequencies will always be colored red by default, even if they

meet timing.

3. To highlight a path in the Floorplanner, simply check the box for the desired path in the Highlight

column of the table within the Critical Paths view. To un-highlight a path, simply uncheck the box.

Note:

The highlight color of each individual critical path can be changed by clicking on the color

chooser box in the Highlight column of the Critical Paths view table. In the color chooser

dialog, select the desired color for that path and click OK.

Selecting Critical Path Objects

In order to manipulate objects (for example, by pre-placing them) on a critical path, it is convenient to add

them to the current ACE selection set (as displayed in the Selection view) for easy access. Note that once they

are in the ACE selection set, they will change their color to the selection color (the selection color overrides

all other colors, including highlight colors).

To add a critical path to the current selection:

1. In the Critical Paths view, click on the table row containing data for the desired path to select objects

for

2. To add the path to the current ACE selection set, click on the Select Path toolbar button ( ) on the

Critical Paths view toolbar.

The path is now added to the selection in the Selection view and is shown with the selection color in the

Floorplanner view.

To add a critical path’s pins to the current selection:

1. In the Critical Paths view, click on the table row containing data for the desired path to select objects

for.

2. To add the path’s pins to the current ACE selection set, click on the Select Pins toolbar button ( ) on

the Critical Paths view toolbar.

The pins are now added to the selection in the Selection view and are shown with the selection color in the

Floorplanner view.

To add a critical path’s instances to the current selection:

1. In the Critical Paths view, click on the table row containing data for the desired path to select objects

for.

2. To add the path’s instances to the current ACE selection set, click on the Select Instances toolbar

button ( ) on the Critical Paths view toolbar.

The instances are now added to the selection in the Selection view and are shown with the selection color in

the Floorplanner view.

To add a critical path’s nets to the current selection:

1. In the Critical Paths view, click on the table row containing data for the desired path to select objects

for.

2. To add the path’s nets to the current ACE selection set, click on the Select Nets toolbar button ( ) on

the Critical Paths view toolbar.

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Achronix ACE Version 5.0 Manuel d'utilisateur Page 285