Specifications

CHAPTER 8: TIMING ANALYSIS

VIEWING TIMING ANALYSIS RESULTS

154 ■ INTRODUCTION TO QUARTUS II ALTERA CORPORATION

The following steps describe the basic flow for making individual timing

assignments in the Assignment Editor:

1. In the Category bar, click Timing to indicate the category of assignment

you wish to make.

2. Click the To cell in the spreadsheet and use the Node Finder to find a

node, or type a node name, wildcard character, and/or time group

name that identifies the destination node you want to assign.

3. Click the From cell in the spreadsheet and use the Node Finder to find

a node, or type a node name, wildcard character, and/or time group

name that identifies the source node you want to assign, if applicable.

4. In the spreadsheet, double-click the Assignment Name cell and select

the timing assignment you wish to make.

5. Double-click the Value cell and type or select the appropriate

assignment value.

You can also use the Locate in Timing Closure Floorplan command (Project

menu) to locate a path in the Timing Closure floorplan, which allows you to

take advantage of the Timing Closure floorplan features to make

assignments to a specific path. For more information on using the Timing

Closure floorplan, refer to “Using the Timing Closure Floorplan” on page

162 in Chapter 9, “Timing Closure.”

You can use the List Paths command (right button pop-up menu) to display

the intermediate delays of any path in a Timing Analyzer report panel in the

Messages window. The List Paths command allows you to find pin-to-pin,

information about any delay path in the design that appears in the Report

Window. See Figure 6.