#Cam350 open net how to
#Cam350 open net update
#Cam350 open net verification
#Cam350 open net software

#Cam350 open net how to

To learn how to read an IPC netlist, review this document. Parts of this article will refer to IPC data and assumes some familiarity. Understanding the IPC format is important to netlist compare, especially if you find errors. This is a common solution of PADS netlist compares. By importing intelligent data info CAM350 you can then export an IPC netlist. The Direct CAD interfaces are found under File>Import>Cad Data. If the CAD system does not export IPC netlists, you may be able to get around this problem by using ODB++ or one of CAM350вЂ™s direct CAD interfaces. It is better to get an IPC netlist from the Gerber data source (the CAD system). Thus they cannot be compared without using CAM350 to build parts.

Using a CAD netlist that is reference designator based is problematic as the netlist you extract from your Gerber data is no referenced designator based. IPC netlists (either IPC-D-356 or IPC-D-356a) are preferable for netlist compare. To discuss such matters, contact support. Such settings vary depending on the CAD program. If you have control over the generation of the Gerber data, adjustments to the output settings in you CAD program can reduce or eliminate all preparation issues. Being aware of these issues can minimize false errors and lead to a more accurate check. Some import and preparation problems can result in netlist extract problems, and thus alter the results of a netlist compare. This makes it much easier to locate the causes of shorts. The Navigation Pane in CAM350 v 10.0 adds the ability to easily locate and highlight extracted nets (sometimes called CAM nets) and external nets. Use Utilities>Netlist Extract to a new netlist after edits then run Analysis>Nets>Compare External Nets afterwards to make sure the net has not been altered.

#Cam350 open net update

Just extract a netlist from the Gerber data, make it external with Analysis | Nets | Update External Nets from CAM Nets and then do your edits.

Netlist compare can catch mistakes that alter the net.

Netlist Compare is also useful when editing a board. Thus DRC and other graphics checks cannot possibly find opens or shorts. Without the external netlist there is no way for CAM350 to understand that the graphic data may not match what was intended. The Netlist Compare process extracts a netlist from your graphic data and compares it against a netlist from an external source. It is likely the most important pre-fabrication check one can do in CAM350. Whether you can read this or not doesnвЂ™t matter, thatвЂ™s what the softwareвЂ™s for.Д¬AM350 uses the PCB design database (as opposed to Gerber and NC drill data) to produce the reference IPC-D-356 netlist to which the fabrication materials will be compared.Д«egin by opening a new session of CAM350.ДЇrom the File pull down menu, import CAD Data and select the appropriate CAD format.Netlist Compare is the only way to find opens and shorts in your Gerber database.

#Cam350 open net software

Take a look at the following examples of netlist formats:ДЄ simple netlist, such as might be generated by typical schematic capture software consists only of part/pin connection references. This type of netlist consists of connection information in an ordinate format вЂ“ or a virtual 3 dimensional description of any net.

#Cam350 open net verification

Verification of photo plots to the original design database is made possible by an IPC-D-356 Netlist.