Some concepts and practical techniques of pads (i)

Some concepts and practical techniques of pads (i)

Disclaimer: Reference Please specify source http://blog.csdn.net/lg1259156776/

1. About Part,cae DECAL,PCB Decal
Part is the meaning of the component, is a specific concept, when used is also used it, associated with the CAE Decal and PCB Decal.
CAE Decal schematic shape and pin definition, easy to draw schematic and view, PCB Decal package shape and pin definition, the specific plate welding is used it.
A component part can have more than one CAE Decal and PCB Decal, in the selection of components to correspond to the PCB Decal, or the package after the board is not to cry Blind (Bo master the second time when the board was missed once, directly resulting in the card on the external memory can not be used, Only the hard-pressed use of internal ram). Therefore, the general can be in the production of the components of the two package can be a possible package is drawn out, in the PCB can be changed at any time the corresponding PCB package.

(1) Part can be done in pads logic and pads layout
(2) CAE decal can only be done in pads logic, specifically in tools-and part Editor
(3) PCB Decal can only be done in pads layout, specifically in Tools, PCB Decal Editor
(4) Part to be associated with CAE and PCB decal, before normal use.

2. How do I import existing schematics and PCBs into my pads library?
This is a very good feature, you can put other people to draw a good component into their own library, can be used at random.

Select parts in logic, then select all, import into libraries, and select the user's library.
or select components in Layout, then select all, import into libraries, select the user's library. Note Import from layout, you need to select two to be fully selected, one is part types, the other is the decals package.

I usually use the time directly to first import from the PCB two, and then import in logic once, covering part types can be.

3. How do I convert a library file downloaded from the Web to a library suitable for your own version of pads?

In general, the library file comes with almost no egg, in fact, a very good way is to copy from the predecessors of some laboratory commonly used in the accumulation of component packaging, thus eliminating the process of drawing components. Of course, for some of the unusual, or to hand-draw, but everyone share, maybe this library is more rich.

Library files downloaded from the Web may be different from their own version, generally is a relatively low version of the library files, this time you can use the Pads library file Conversion tool to achieve the conversion. For example, the path in: D:\MentorGraphics\9.4PADS\SDD_HOME\Programs\ under the search for Libconv9.exe can be achieved conversion.

4. About library files

Pads Library interface has four parts: decals corresponding to the PCB packaging library, layout of the operating objects, logic corresponding schematic symbols, logic operation objects, parts corresponding components, associated with decals and logic Line corresponds to a library of 2D lines, corresponding shapes, tables, etc.
Part type,logic DECAL,PCB decal and line respectively correspond to the ". Pt9", "ld9", ". Pd9", ". Ln9" four library file suffixes.

2015-10-8 Less Art

Copyright NOTICE: This article for Bo Master original article, reprint please indicate source http://blog.csdn.net/lg1259156776/.

Some concepts and practical techniques of pads (i)