Cadence PCB Best Practices

Electrical and Mechanical Design Incremental Data Exchange

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Electrical Design, Mechanical Design Incremental Data Exchange in Allegro PCB Editor October 2019 12 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. Incremental Changes This section follows a scenario where: ■ Changes are made in the MCAD tool ■ Change proposal is sent to Allegro PCB Editor ■ PCB designer accepts some changes, rejects others ■ PCB designer proposes new changes ■ MCAD designer accepts new changes Important Initiating changes from Allegro PCB Editor is an identical process. The most important step to remember for the PCB designer is to read in the transaction file when no other proposed changes are being passed from the MCAD tool. The import of this transaction file gets recorded into the Allegro baseline data, maintaining a current up-to-date status. The following steps explains the transaction process between MACD tool and Allegro PCB Designer: 1. After a modification is made within the MCAD tool. a. An incremental IDX file is exported b. The incremental IDX file is sent to the Allegro PCB designer. 2. The Allegro PCB designer Imports the incremental IDX file and views the changes, and performs one of the following tasks. a. Accepts some proposed changes. b. Rejects some proposed changes, and adds comments to rejected changes. c. Closes IDX incremental import. 3. The Allegro PCB designer makes modifications to the rejected items. 4. Exports new incremental IDX file. a. Adds comments to the items modified. b. Makes incremental available to the MCAD designer 5. MCAD designer Imports new incremental IDX file.

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