In the PCB design process, due to the different data or file format between different software platforms , often need to use other tools to convert platforms or file format , to introduce from PROTEL to ALLEGRO conversion techniques.
1. Protel schematics to Cadence Design Systems, Inc. Capture CIS
Protel schematic on the transformation , we can take advantage of the new features Protel DXP SP2 to achieve. With this feature we can directly transformed into Protel schematic in Capture CIS .
Note:
1) Protel DXP Capture DSN in the output file, no output Package Information in Capture so we 'll see PCB Footprint property elements are empty. This requires us to manually add the information for the component package , which is the whole transformation process is the most time-consuming work . When you add a package of information to keep the restrictions and Protel PCB design package consistency, and Cadence named on the package . When we add the package to the component in Capture the information , taking into account these naming changes.
2 ) Some devices hidden pins or pin number will be lost in the conversion process , you need to use the library to edit in Capture method to add up .
3 ) In a hierarchical design, the connection between the module name in the Capture the bus needs .
4 ) For a package has multiple parts of the device , pay attention to modify its position number.
Basically noted above points , with Protel DXP, Protel principle can be transformed into Capture in Fig . Further promotion, which also translated into an existing Protel schematic symbol library provides a way to Capture .
Transformation 2. Protel package library
Protel PCB design for long-term use , we always accumulate a huge proven Protel package library , when designing a platform conversion, how to keep this package library is always a headache . Here, we will use Orcad Layout, and free Layout2Allegro Cadence tools to get the job done .
