horizon a new star on the EDA sky Lukas Kramer FOSDEM 2018 Lukas K., FOSDEM / 10

Transcription

1 horizon a new star on the EDA sky Lukas Kramer FOSDEM 2018 Lukas K., FOSDEM / 10

2 Motivation Why write an EDA package from scratch in 2016? Lukas K., FOSDEM / 10

3 Motivation Why write an EDA package from scratch in 2016? Convenient and collaborative management of symbols, etc. avoiding redundancy Proper support for parts Unified editor Schematic editor that isn t a drawing program Rule-driven design Explicit references (i.e. not by name / location) Make use of OpenGL 3 features Playground for experimentation Lukas K., FOSDEM / 10

4 Implementation C++14 Lukas K., FOSDEM / 10

5 Implementation 50 kloc C++14 Lukas K., FOSDEM / 10

6 Implementation 50 kloc Gtk C++14 Lukas K., FOSDEM / 10

7 Implementation 50 kloc Gtk C++14 Builds and runs on Linux and Windows Lukas K., FOSDEM / 10

8 Implementation JSON Gtk kloc C++14 Builds and runs on Linux and Windows Lukas K., FOSDEM / 10

9 Implementation 499bf624-b2f b9a-0eeb2c8fbb3f JSON Gtk kloc C++14 Builds and runs on Linux and Windows Lukas K., FOSDEM / 10

10 Implementation UUIDs JSON Gtk kloc C++14 Builds and runs on Linux and Windows Lukas K., FOSDEM / 10

11 The Pool What s wrong with libraries Like a file system with only one level of hierachy Not a database Lukas K., FOSDEM / 10

12 The Pool What s wrong with libraries Like a file system with only one level of hierachy Not a database The Pool Each item is an individual JSON file Metadata is stored in a SQLite database Only contains real parts / parts that can be mapped to a real part Lukas K., FOSDEM / 10

13 The Pool Part Entity Package Entity Gate A Gate B Gate P Gate... Package Pad 1 Pad 2 Pad n Unit 1 Symbol 1 Unit 2 Symbol 2 Padstack A Padstack B Lukas K., FOSDEM / 10

14 The Pool Part Entity Package Entity?? Gate A Gate B Gate P Gate... Package Pad 1 Pad 2 Pad n Unit 1 Unit 2? Padstack A Padstack B Symbol 1 Symbol 2 Lukas K., FOSDEM / 10

15 The Pool Part Entity Package Entity Gate A Gate B Gate P Gate... Package Pad 1 Pad 2 Pad n Unit 1 Symbol 1 Unit 2 Symbol 2 Padstack A Padstack B Lukas K., FOSDEM / 10

16 The Pool Part Entity Package Entity Gate A Gate B Gate P Gate... Package Pad 1 Pad 2 Pad n Bomazi, Wikimedia Commons, CC-BY-SA Unit 1 Symbol 1 Unit 2 Symbol 2 Padstack A Padstack B Lukas K., FOSDEM / 10

17 The Pool Part Entity Package Entity Gate A Gate B Gate P Gate... Package Pad 1 Pad 2 Pad n Unit 1 Symbol 1 Unit 2 Symbol 2 Padstack A Padstack B Lukas K., FOSDEM / 10

18 The Pool Part Entity Package Entity Gate A Gate B Gate P Gate... Package Pad 1 Pad 2 Pad n Unit 1 Symbol 1 Unit 2 Symbol 2 Padstack A Padstack B Lukas K., FOSDEM / 10

19 The Pool Part Entity Package Entity Gate A Gate B Gate P Gate... Package Pad 1 Pad 2 Pad n Unit 1 Symbol 1 Unit 2 Symbol 2 Padstack A Padstack B Lukas K., FOSDEM / 10

20 The Pool Part Entity Package Entity Gate A Gate B Gate P Gate... Package Pad 1 Pad 2 Pad n Unit 1 Symbol 1 Unit 2 Symbol 2 Padstack A Padstack B Lukas K., FOSDEM / 10

21 The Pool Part Entity 1.55 mm 1.0 mm Gate A Unit 1 get - parameter [ so lder_ mask_ e xpans ion ] 2 * Gate B +xy Gate P Unit 2 set - shape [ mask - ob obround ] Gate mm Entity get - parameter [ so lder_ mask_ e xpans ion ] + Package 1.55 mm Package get - parameter [ so lder_ mask_ e xpans ion ] 2 * + Pad 1 set - shape [ mask Pad - rect 2 rectangle ]... Pad n Padstack A Padstack B Symbol 1 Symbol 2 Lukas K., FOSDEM / 10

22 The Pool Part Entity Package Entity Gate A Gate B Gate P Gate... Package Pad 1 Pad 2 Pad n Unit 1 Symbol 1 Unit 2 Symbol 2 Padstack A Padstack B Lukas K., FOSDEM / 10

23 The Pool Part Entity Package Entity Gate A Gate B Gate P Gate... Package Pad 1 Pad 2 Pad n Unit 1 Symbol 1 Unit 2 Symbol 2 Padstack A Padstack B Lukas K., FOSDEM / 10

24 The Pool Part Entity Package Entity Gate A Gate B Gate P Gate... Package Pad 1 Pad 2 Pad n Unit 1 Symbol 1 Unit 2 Symbol 2 Padstack A Padstack B Lukas K., FOSDEM / 10

25 Netlist vs. Schematic Requirements for schematic editor Has to know about nets No "it s connected if it has the same name" Lukas K., FOSDEM / 10

26 Netlist vs. Schematic Requirements for schematic editor Has to know about nets No "it s connected if it has the same name" Ideas / How it s implemented So why not build the schematic from the netlist? Netlist is edited in sync with schematic Schematic doesn t store net names and connectivity Net names are filled in from netlist Lukas K., FOSDEM / 10

27 Rules and Checks (DRC) Rules Set track width Set plane parameters Set via sizes Set pad/package parameters Lukas K., FOSDEM / 10

28 Rules and Checks (DRC) Rules Set track width Set plane parameters Set via sizes Set pad/package parameters Matching Net Net class Net name Lukas K., FOSDEM / 10

29 Rules and Checks (DRC) Rules Set track width Set plane parameters Set via sizes Set pad/package parameters Matching Net Net class Net name Checks Clearances Track width Hole size Lukas K., FOSDEM / 10

30 Rules and Checks (DRC) Rules Set track width Set plane parameters Set via sizes Set pad/package parameters Matching Net Net class Net name Checks Clearances Track width Hole size Framwork for DRC, ERC and style checks Lukas K., FOSDEM / 10

31 There s more! What s working Workflow from schematic to board Interactive router Pool management with GitHub integration Gerber export Planes with thermals Differential Pairs Buses 3D preview, STEP export Airwires Undo/Redo Copy/Paste Lukas K., FOSDEM / 10

32 There s more! What s working Workflow from schematic to board Interactive router Pool management with GitHub integration Gerber export Planes with thermals Differential Pairs Buses 3D preview, STEP export Airwires Undo/Redo Copy/Paste Coming soon Pool Convention (WIP) UI polish Assembly drawings Title blocks BOM export ERC Hierachical designs Better PDF export Performance Lukas K., FOSDEM / 10

33 Thanks Friends & Testers People on the internet Lukas K., FOSDEM / 10

34 Thanks Friends & Testers People on the internet KiCad Project Lukas K., FOSDEM / 10

35 It s demo time! Lukas K., FOSDEM / 10