ALLEGRO software PCB design brief process and related precautions ALLEGRO software PCB design brief process and related precautions ALLEGRO software PCB design brief process and related precautions When outputting the schematic netlist, please be careful not to select the Repackage option, because it may cause the position numbers of the already laid out PCB components to be re-arranged, and some devices may need to be re-laid out. 1.11Allegro schematic netlist import 1.1 First, specify the PCB library path, and specify the paths of the pads and device packages of this project respectively Project Manager Setup -> Tools (Allegro Setup ) -> Design_paths (padpath\\psmpath) 1 ALLEGRO software PCB design brief process and related precautions 2 ALLEGRO software PCB design brief process and related precautions 3 ALLEGRO software PCB design brief process and related precautions Note that the pad, device package, and thermal pad graphic library must use the public library. If necessary, you can add the PCB frame diagram path in the psmpath path. Delete the redundant paths to avoid errors. (The path of the hot pad graphic library is indispensable) In addition, this setting can also be made in the User preferences item under the SETUP directory in ALLEGRO. The library pointed to by the device package path must be synchronized or updated with the public library in a timely manner. 1.2 Import the netlist from File->import->logical to import. Note the import from path here. It should be in the project packaged directory. 4 ALLEGRO software PCB design brief process and related precautions 1.3 View the netlist import report file After the netlist is imported, a report file will be generated. Click Viewlog in the File directory to see it. The following problems may occur here: 1) The number and name of the device schematic pins are inconsistent with the PCB standard library. (The schematic library should be modified) 2) The device package and pad are not found. (Redetermine the library path) The PCB package specified by the schematic library...
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