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标题: Cadence 用户问题解答 [打印本页]

作者: 海洋狂吻    时间: 2014-2-13 10:11     标题: Cadence 用户问题解答

(即将发布的14.2版本对这些大部分问题做了很多改进。下面列出14.2版的一些主要改进:

Save Design to 14.0

Database Write Locks

View Schemes

DBdoctor

Plane Rat

Place Manual UI Auto-Hide

Direct Select of Alternate Symbol

Quickplace Options

Via Shoving

Dynamic Slide Phase II

Vertex Dynamic Bubble Options

Smart Start on Line Width

Highlight All Pins on Net During add connect

Cadence Design Systems, Inc

Net Name Added to Control Panel

Purge Vias

EXTRACT Name Change

Graphical Enhancements During Dynamics

Text Printing/Stick

Append to File Option Added to Reports

SPECCTRA-Like Zoom

Viewer Plus Enhancements

New Board Wizard

CPM and CDS_SITE Support

Scald EOL

IPC356 and Allegro-to-DXF Performance Improvement

TestPrep PCR Fixes

New Features in Allegro Studio (PCB)

Miscellaneous Category)

10. 生成料单时,有PPT 表的元器件的 Part Name 在料单中出现两次。

(14.1版已解决此问题)

PART 3:

我们在使用CADENCE的过程中遇到的问题基本归结为:

1 无论哪个版本都经常出现自动退出,提示为非法操作,然后不能存盘,自动退出。(ALLEGRO)

(参考PART2问题7的答案。提示:Allegro在异常退出时,会在当前设计目录下产生一个后缀为sav的文件。用Allegro打开该文件,另存为brd文件即可)

2 版本13.6中出现过生成的GERBER文件在避让不能的SHAPE时,出现半圆,即不能完全避让。还出现过个别完全不避让的状况 。

(题目意思不太清楚。请使用最新版本测试)

3 版本14.1很多机器不能正常安装。

(请参考软件安装手册,并注意安装过程中系统给出的提示。一般出现这种问题都是操作系统问题或放火墙、防病毒软件引起)

4 在添加IBIS模型时,MPC8260总是不能自动加上去,已经和工程师联系过多次。

(可能是因为该IBIS模型不是标准格式,请使用器件商提供的标准模型)

PART 4:

1在ALLEGRO中,编辑焊盘时,经常会出现“执行程序错误”而退出程序,且没有备份文件,导致之前的工作白费。

(此问题14.1已经解决,而且同样与操作系统有关)

2 在从自动布线器(SPECCTRA)建军回到ALLEGRO后,输出表层的线、孔就与器件成为一个整体,移动器件时,线、孔就附在上面一起移动。

(实际上,这个功能是Cadence应大多数用户要求而添加上的,主要是为了方便移动器件的时候 fanout 后的引腿和 via
能跟着一起移动。如果你实在不愿意这么做,可以执行下面这个Skill程序解决,以后版本将会有选项供用户选择:


; The following Skill routine will remove invisible

; properties from CLINES and VIAS.

; The intent of this Skill program is to provide

; users with the ability of deleting the invisible

; properties that SPECCTRA/SPIF puts on. This will allow the moving

; of symbols without the attached clines/vias once the

; design is returned from SPECCTRA if the fanouts were originally

; put in during an Allegro session.

;

; To install: Copy del_cline_prop.il to any directory defined

; within your setSkillPath in your

; allegro.ilinit. Add a "load("del_cline_prop.il")"

; statement to your allegro.ilinit.

;

; To execute: Within the Allegro editor type "dprop" or

; "del cline props". This routine should

; only take seconds to complete.

;

; Deficiencies: This routine does not allow for Window or

; Group selection.

;

; WARRANTIES: NONE. THIS PROGRAM WAS WRITTEN AS "SHAREWARE" AND IS AVAILABLE
AS IS


; AND MAY NOT WORK AS ADVERTISED IN ALL ENVIRONMENTS. THERE IS NO

; SUPPORT FOR THIS PROGRAM.

;

; Delete invisible cline/via properties.

;

axlCmdRegister( "dprop" 'delete_cline_prop)

axlCmdRegister( "del cline props" 'delete_cline_prop)

(defun delete_cline_prop ()

;; Set the Find Filter to Select only clines

(axlSetFindFilter ?enabled (list "CLINES" "VIAS")

?onButtons (list "CLINES" "VIAS"))

;; Select all clines

(axlClearSelSet)

(axlAddSelectAll) ;select all clines and vias

(setq clineSet (axlGetSelSet))

(axlDBDeleteProp clineSet "SYMBOL_ETCH") ;Remove the property

(axlClearSelSet) ;unselect everything

)

3 建原理图软件中,图形编辑和SYMBOLS中的设置不一致,SYMBOLS中的任何设置变动都会使图形的编辑无效。

(问题表达不太清楚,请直接联系支持工程师)




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