Intro to MicroControllers : Stellaris Launchpad Class 4: PCB Schematic Design & Board Layout

Topics for Today Symbol + Package = Device Create Device / Libraries – Net Names – Pin Names – Design Rule Check Board Layout (signal routing) PCB Fabrication Services

Device = Symbol + Package Library = collection of Devices – Device = pairing of Symbol with Package Symbol = Electrical Signal Property routing Package = Physical copper contacts Symbol Package

Schematic = All symbols

Board Layout = Packages wired up Top Layer Bottom Layer Via

Custom Part Creation 1.Create / Open Library 2.Create Symbol 3.Create Package 4.Create Device – Link Pins together on Schematic -> Package Note: make sure you have the library window in focus. For more detailed instructions see the instructable below.

Schematic Focus on Library->Library->Symbol Draw package, add pins, name pins and nets

Package Set grid to half smallest size Use datasheet Name pins Name package, give value NOTE: Show names / values, VERY IMPORTANT for later

Device Library in focus -> Library -> Device Select Symbol, select Package (prev created) Connect pins Save

Device creation the Easy Way Copy Existing Parts Open their libraries, cut, then open your library and paste.

Board Layout Do Schematic first Generate board from Schematic Route wires Run DRC, fix errors

Produce Board Upload.board file to OSH Park Review masks Wait 2 weeks, Vuala!

Extras Generate 3D image of board