NOTE : Use of Solder Mask data with PADS CAD system A Cadence for Unix file header should look something like this:Īnd are all processed using the Test Expert PADS input processor. The important thing is to make sure that the final file looks like the sample file attached. It then tells you how to run the program. It is best to accept the defaults but to check the configuration file paths to the Cadence system libraries etc All they need to do is to run the executable CDC2FAB in this file structure. They need to extract this zip folder and it will produce a folder called Fabmaster'. This script must be run on the computer that has Cadence loaded on it. In order to do this, the customer needs the Fabmaster "extraction script" and instructions. So, in order for Fabmaster/TestExpert to work with Cadence files, we need a single ascii file extracted from Cadence that contains the pcb information. ![]() This script formats the data in a VERY specific way, which means that the file extracted using one Company's script will NOT work with another Company's software because although they may look 'similar' they are not is the expected format or column order.Īlso you cannot simply re-order the columns because we require a number of sections with different information (Part, Net, Package etc etc). Please see the documentation for the Windows extraction program (CDS2FAB) if you have a Windows-based version of CADENCE. ![]() The Test Expert script file describes the data to be extracted from the database. To convert a printed circuit board from an ALLEGRO CAD system, the database must first be extracted as an ASCII file using the CADENCE ALLEGRO Data Extract utility which is controlled by the Test Expert script file. Ii) Using the TestExpert CDC2FAB provided script program. The CAD user must take care to select ALL layer options, FULL file otherwise it will produce a ‘cut-down’ file for Assembly usage only and not including items like the netlist and net connections. If not present already this prompts the user to download the Valor ODB script writer which then prompt the user to open the job file and produce the ODB output. On the CADS system GUI there Is a special link ‘Export -ODB inside’. There are 2 possibilities for extracting data from Cadence Allegro (and also latest version of Cadence ORCAD), both of which require the CAD engineer to run a special script ON the CAD system - it is NOT possible to do this after data has been extracted as all Cadence data is extracted using customised script programs.Ĭadence have brought Orcad into line with Allegro such that they are using a common GUI for Layout/PCB design and that their "favourite" export of data is the "Allegro way" which is to use script programs for specific formats and that they have a "valued tie-in" with Valor for ODB++ which means that you have to download a utility script from Valor.
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