参数资料
型号: SW-QUARTUS-SE-FIX
厂商: Altera
文件页数: 83/136页
文件大小: 0K
描述: QUARTUS II ANNUAL SUBSCRIPTION
应用说明: Software Licensing App Note
产品培训模块: Quartus II Design Software
标准包装: 1
类型: 设计软件
适用于相关产品: Altera 设备
产品目录页面: 605 (CN2011-ZH PDF)
其它名称: 544-1247
FIXEDPC
C HAPTER 5: T IMING A NALYSIS AND D ESIGN O PTIMIZATION
T IMING C LOSURE
Using the Chip Planner
You can use the Chip Planner to view logic placement made by the Fitter,
view user assignments and LogicLock region assignments, and routing
information for a design. You can use this information to identify critical
paths in the design and make timing assignments, location assignments, and
LogicLock region assignments to achieve timing closure.
!
Using Chip Planner to Achieve Timing Closure
The Quartus II Chip Planner provides a single interface for viewing and making
changes to the design floorplan as well as making ECO-style post-fit netlist changes.
For the list of devices supported by Chip Planner, see Quartus II Help.
Chip Planner Tasks And Layers
The Chip Planner can simultaneously show user assignments and Fitter
location assignments. You can customize the way the Chip Planner displays
information with the Task list and the commands the View menu.
The following are the pre-defined tasks in the Chip Planner:
Floorplan editing
Post-compilation editing
Partition display
Clock region assignment creation
You can use the Layers Settings command on the View menu to select more
than one combination of these elements for a customized view of your
design in the device. You can view global and local routing, ports, used and
unused assignments, pin and location assignments, user and fitter-placed
LogicLock regions, clock regions, and other elements in any combination.
Making Assignments
To facilitate achieving timing closure, the Chip Editor assignment tasks
allow you to make or change location assignments directly in the floorplan.
You can create and assign nodes or entities to custom regions and to
LogicLock regions, and you can also edit existing assignments to logic cells,
rows, columns, and regions.. You can also locate any node (or set of nodes)
and make assignments in the Assignment Editor.
74
I NTRODUCTION TO THE Q UARTUS II S OFTWARE
A LTERA C ORPORATION
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