mirror of
git://projects.qi-hardware.com/wernermisc.git
synced 2024-11-28 07:58:26 +02:00
544 lines
15 KiB
TeX
544 lines
15 KiB
TeX
\documentclass[12pt,trans]{beamer}
|
|
\usepackage{color}
|
|
\usepackage{url}
|
|
\usepackage{colortbl}
|
|
%\usepackage{soul}
|
|
%\usepackage{verbatim}
|
|
\usefonttheme{structurebold}
|
|
\setbeamertemplate{navigation symbols}{}
|
|
\setbeamertemplate{items}[ball]
|
|
%\setbeamersize{sidebar width left=-5mm}
|
|
\title{\Large Making Hardware \\ with KiCad and Friends}
|
|
\author{Werner Almesberger \\\url{werner@almesberger.net}}
|
|
\date{July 27, 2012}
|
|
|
|
%\setul{}{1.5pt}
|
|
|
|
\begin{document}
|
|
|
|
\begin{frame}
|
|
\titlepage
|
|
\end{frame}
|
|
|
|
% --- Overview ----------------------------------------------------------------
|
|
|
|
\begin{frame}{Overview}
|
|
\begin{itemize}
|
|
\item KiCad introduction
|
|
\item Collaborative design in Qi-Hardware
|
|
\item Tools to improve KiCad
|
|
\item Workflow overview
|
|
\end{itemize}
|
|
\vskip5mm
|
|
{\small \url{downloads.qi-hardware.com/people/werner/fisl13.pdf}}
|
|
\end{frame}
|
|
|
|
% --- KiCad Introduction ------------------------------------------------------
|
|
|
|
\begin{frame}{KiCad}
|
|
\begin{itemize}
|
|
\item Complete EDA solution
|
|
\item Free Software: GPL, LGPL
|
|
\item Development team by Jean-Pierre Charras, \\
|
|
Dick Hollenbeck, and many others
|
|
\item C++, wxWidgets
|
|
\item Multi-platform: Linux, Windows, Mac
|
|
\item Text files $\rightarrow$ extensible
|
|
\end{itemize}
|
|
|
|
\vskip5mm
|
|
{\small \url{www.kicad-pcb.org}}
|
|
\end{frame}
|
|
|
|
% --- Schematics --------------------------------------------------------------
|
|
|
|
\begin{frame}{KiCad: Schematics}
|
|
\begin{center}
|
|
\includegraphics[width=1.0\textwidth]{schem.pdf}
|
|
\end{center}
|
|
\end{frame}
|
|
|
|
% --- Footprints --------------------------------------------------------------
|
|
|
|
\begin{frame}{KiCad: Footprints}
|
|
\begin{center}
|
|
\includegraphics[width=1.0\textwidth]{assoc.pdf}
|
|
\end{center}
|
|
\end{frame}
|
|
|
|
% --- Layout ------------------------------------------------------------------
|
|
|
|
\begin{frame}{KiCad: Layout}
|
|
\begin{center}
|
|
\includegraphics[width=1.0\textwidth]{layout.pdf}
|
|
\end{center}
|
|
\end{frame}
|
|
|
|
% --- Qi-Hardware -------------------------------------------------------------
|
|
|
|
\begin{frame}{Qi-Hardware}
|
|
Structure and goals:
|
|
\begin{itemize}
|
|
\item Collection of loosely connected projects
|
|
\item Informal gathering of like-minded developers
|
|
\item Copyleft Hardware with Free Software
|
|
\item Development and manufacturing
|
|
\item Toolmaking
|
|
\end{itemize}
|
|
|
|
Products:
|
|
\begin{itemize}
|
|
\item Ben NanoNote (Handheld computer)
|
|
\item Ben-WPAN (IEEE 802.15.4 wireless)
|
|
\item Milkymist One (FPGA-based Video synthesizer)
|
|
\end{itemize}
|
|
|
|
\vskip2mm
|
|
{\small \url{www.qi-hardware.com}}
|
|
\end{frame}
|
|
|
|
% --- Collaborative Design ----------------------------------------------------
|
|
|
|
\begin{frame}{Collaborative Design}
|
|
\begin{itemize}
|
|
\item Follow other people's work
|
|
\item Review other people's work (projects and libraries)
|
|
\item Shared design information
|
|
\item Shared version control (git)
|
|
\item Shared procedures and rules
|
|
\end{itemize}
|
|
\end{frame}
|
|
|
|
% --- KiCad Limitations -------------------------------------------------------
|
|
|
|
\begin{frame}{KiCad Limitations}
|
|
\begin{itemize}
|
|
\item No integrated version control system support
|
|
\item Integration leads to weak peripheral tools
|
|
\begin{itemize}
|
|
\item Footprint editor
|
|
\item Component catalog
|
|
\item Module catalog
|
|
\end{itemize}
|
|
\item No scripting (coming)
|
|
\item Scattered libraries
|
|
\end{itemize}
|
|
\end{frame}
|
|
|
|
% --- Qi-Hardware Adaptation --------------------------------------------------
|
|
|
|
\begin{frame}{Qi-Hardware Adaptation}
|
|
\begin{itemize}
|
|
\item Keep things simple: only Linux
|
|
\item Command-line-oriented use
|
|
\item Extend KiCad with patches
|
|
\item External scripts/programs
|
|
\item Own component and module libraries with common rules
|
|
\end{itemize}
|
|
\end{frame}
|
|
|
|
% --- Libraries ---------------------------------------------------------------
|
|
|
|
\begin{frame}{Libraries}
|
|
Goals:
|
|
\begin{itemize}
|
|
\item Consistent naming
|
|
\item Known origin of design information \\
|
|
E.g., IPC-7351
|
|
\item Documented development process
|
|
\end{itemize}
|
|
|
|
To do:
|
|
\begin{itemize}
|
|
\item Improve organization
|
|
\item Better integrate background information
|
|
\item Reviews !
|
|
\end{itemize}
|
|
|
|
\vskip4mm
|
|
% URL http://projects.qi-hardware.com/index.php/p/kicad-libs/source/tree/master/components/
|
|
{\small \url{tiny.cc/kicad-libs-components}} \\
|
|
% URL http://projects.qi-hardware.com/index.php/p/kicad-libs/source/tree/master/modules/
|
|
{\small \url{tiny.cc/kicad-libs-modules}}
|
|
\end{frame}
|
|
|
|
% --- What goes into git ------------------------------------------------------
|
|
|
|
\begin{frame}{What goes into git}
|
|
KiCad:
|
|
\begin{itemize}
|
|
\item Project file: {\tt {\em project}.{\color{red}pro}}
|
|
\item Schematics: {\tt {\em project}.{\color{red}sch}},
|
|
{\tt {\em subsheet}.{\color{red}sch}}
|
|
\item Footprint mapping: {\tt {\em project}.{\color{red}cmp}}
|
|
\item Layout: {\tt {\em project}.{\color{red}brd}}
|
|
\end{itemize}
|
|
|
|
Qi-Hardware:
|
|
\begin{itemize}
|
|
\item Makefile ({\tt sch}, {\tt brd}, {\tt fab}, {\tt clean})
|
|
\item Bookshelf (for dsv)
|
|
\item Project-local libraries
|
|
\end{itemize}
|
|
\end{frame}
|
|
|
|
% --- What doesn't ------------------------------------------------------------
|
|
|
|
\begin{frame}{What doesn't}
|
|
\begin{itemize}
|
|
\item Netlist: {\tt {\em project}.{\color{red}net}} \\
|
|
Generated with eeschema from
|
|
{\tt *.{\color{red}sch}}
|
|
and
|
|
{\tt {\em project}.{\color{red}cmp}}
|
|
\item Caches and backups:
|
|
{\tt {\em sheet}.{\color{red}bak}},
|
|
{\tt {\em project}.{\color{red}000}},
|
|
{\tt {\em project}{\color{red}-cache.lib}}
|
|
\item Postscript:
|
|
{\tt {\em project}-{\em sheet}.{\color{red}ps}},
|
|
{\tt {\em project}-{\em layer}.{\color{red}ps}}
|
|
\item Gerbers:
|
|
{\tt {\em project}-{\em layer}.{\color{red}g{\em ??}}}
|
|
\item BOMs: {\tt {\em project}.{\color{red}lst}},
|
|
{\tt {\em project}.{\color{red}cvs}}
|
|
\item Fab outputs: {\tt {\em project}.{\color{red}drl}},
|
|
{\tt {\em project}.{\color{red}pos}}
|
|
\item And so on: {\tt {\em project}.{\color{red}cad}},
|
|
{\tt {\em project}.{\color{red}erc}},
|
|
{\tt {\em project}.{\color{red}dsn}},
|
|
{\tt {\em project}.{\color{red}rpt}},
|
|
{\tt {\em project}.{\color{red}wrl}}, $\ldots$
|
|
\end{itemize}
|
|
\end{frame}
|
|
|
|
% --- Project File ------------------------------------------------------------
|
|
|
|
\begin{frame}{Project File ({\tt {\em project}.pro})}
|
|
|
|
Contains:
|
|
\begin{itemize}
|
|
\item Project settings
|
|
\item Lists of libraries
|
|
\end{itemize}
|
|
|
|
Issues:
|
|
\begin{itemize}
|
|
\item Local absolute paths
|
|
\item Default libraries
|
|
\item Timestamps $\rightarrow$ commit noise
|
|
\end{itemize}
|
|
|
|
Solution:
|
|
\begin{itemize}
|
|
\item Maintain paths manually
|
|
\item {\tt purge} script: \\
|
|
% URL http://projects.qi-hw.com/index.phpp/wernermisc/source/tree/master/bin/purge
|
|
{\small \url{tiny.cc/wernermisc-bin-purge}}
|
|
\end{itemize}
|
|
\end{frame}
|
|
|
|
% --- Makefile ----------------------------------------------------------------
|
|
|
|
\begin{frame}[fragile]{Makefile}
|
|
Objectives:
|
|
\begin{itemize}
|
|
\item Convenience shortcuts
|
|
\item Combine tools
|
|
\item Share common procedures
|
|
\item Avoid mistakes
|
|
\end{itemize}
|
|
|
|
{\small
|
|
\begin{verbatim}
|
|
front:
|
|
pcbnew --plot=ps --plot-fill-all-zones \
|
|
--layers=Front --plot-mirror \
|
|
$(PROJECT).brd
|
|
lpr $(PROJECT)-Front.ps
|
|
\end{verbatim}
|
|
}
|
|
\end{frame}
|
|
|
|
% --- KiCad Command-Line Patches ----------------------------------------------
|
|
|
|
\begin{frame}{KiCad Command-Line Patches}
|
|
Original hack by Werner Almesberger, clean rewrite by Wolfgang Spraul,
|
|
soon rewrite for scripting.
|
|
\begin{itemize}
|
|
\item Idea: command-line access to main output functions
|
|
\item eeschema
|
|
\begin{itemize}
|
|
\item Visualization: Postscript (and SVG, DXF)
|
|
\item BOM $\rightarrow$ BOOM
|
|
\item Netlist, ERC
|
|
\end{itemize}
|
|
\item pcbnew
|
|
\begin{itemize}
|
|
\item Fabrication: Gerbers, drill (Excellon), component positions
|
|
\item Visualization and DIY: Postscript
|
|
\item Attributes: mirror, size, origin, fill zones, $\ldots$
|
|
\end{itemize}
|
|
\end{itemize}
|
|
|
|
\vskip5mm
|
|
% URL http://projects.qi-hardware.com/index.php/p/eda-tools/source/tree/master/kicad-patches/
|
|
{\small \url{tiny.cc/eda-tools-kicad-patches}}
|
|
\end{frame}
|
|
|
|
% --- Data Sheet Viewer (dsv) -------------------------------------------------
|
|
|
|
\begin{frame}[fragile]{Data Sheet Viewer (dsv)}
|
|
\begin{itemize}
|
|
\item Bookshelf: name and aliases $\rightarrow$ PDF or ZIP with PDF
|
|
\item Download (wget) to local cache
|
|
\item Hierarchical lookup by name or alias
|
|
\item Example: \\
|
|
{\tt dsv avr} $\rightarrow$ ATtiny87 ({\tt doc8265.pdf})
|
|
$\rightarrow$ xpdf
|
|
\end{itemize}
|
|
|
|
\vskip5mm
|
|
Bookshelf example:
|
|
|
|
\begin{verbatim}
|
|
N: attiny87
|
|
A: attiny167
|
|
A: avr
|
|
D: http://www.atmel.com/Images/doc8265.pdf
|
|
\end{verbatim}
|
|
\end{frame}
|
|
|
|
% --- Data Sheet Viewer (dsv) -------------------------------------------------
|
|
|
|
\begin{frame}{dsv Motivation}
|
|
\begin{itemize}
|
|
\item Make sure everybody uses the same data sheet
|
|
\begin{itemize}
|
|
\item Same component
|
|
\item Same manufacturer
|
|
\item Same data sheet revision
|
|
\end{itemize}
|
|
\item Copyright: can't just check in PDF
|
|
\item Industrial pragmatism: private mail or ``internal'' repository
|
|
\item Qi-Hardware: share {\tt BOOKSHELF}
|
|
\end{itemize}
|
|
|
|
\vskip10mm
|
|
% URL http://projects.qi-hardware.com/index.php/p/eda-tools/source/tree/master/dsv/
|
|
{\small \url{tiny.cc/eda-tools-dsv}}
|
|
\end{frame}
|
|
|
|
% --- Schematics Symbol Catalog ----------------------------------------------
|
|
|
|
\begin{frame}{Schematics Symbol Catalog}
|
|
\begin{itemize}
|
|
\item For selection, review
|
|
\item Hierarchical order with alphabetical index
|
|
\item Short descriptions and data sheet links \\
|
|
To do: connect to dsv
|
|
\item Added value: indicate pin types
|
|
\end{itemize}
|
|
|
|
\begin{center}
|
|
\includegraphics[width=1.0\textwidth]{cat-comp.pdf}
|
|
\end{center}
|
|
\end{frame}
|
|
|
|
% --- Schematics History ------------------------------------------------------
|
|
|
|
\begin{frame}{Schematics History}
|
|
\begin{itemize}
|
|
\item Schematics revision history
|
|
\item {\tt git diff} produces gibberish
|
|
\end{itemize}
|
|
|
|
\begin{center}
|
|
\includegraphics[height=4.5cm]{../fisl2011/schhist.png}
|
|
\qquad
|
|
\includegraphics[height=4cm]{../fisl2011/USB.png}
|
|
\end{center}
|
|
|
|
{\small \url{projects.qi-hardware.com/schhist/}}
|
|
\end{frame}
|
|
|
|
% --- Schematics History (cont'd) ---------------------------------------------
|
|
|
|
\begin{frame}{Schematics History (cont'd)}
|
|
How it works:
|
|
\begin{itemize}
|
|
\item Walk git revision history
|
|
\item Check out project whenever schematics change
|
|
\item Run eeschema to make Postscript
|
|
\item Convert to PNG (find diffs, with highlighting) and PDF
|
|
\item Wrap in HTML
|
|
\end{itemize}
|
|
|
|
%Issues:
|
|
%\begin{itemize}
|
|
% \item Nasty shell script
|
|
% \item Resource-hungry (partial caching)
|
|
% \item Large schematics get confusing
|
|
% \item Projects spanning multiple repositories
|
|
%\end{itemize}
|
|
\vskip5mm
|
|
% URL http://projects.qi-hardware.com/index.php/p/eda-tools/source/tree/master/schhist/
|
|
{\small \url{tiny.cc/eda-tools-schhist}}
|
|
\end{frame}
|
|
|
|
% --- Fped --------------------------------------------------------------------
|
|
|
|
\begin{frame}{Footprint Editor (fped)}
|
|
\begin{center}
|
|
\includegraphics[height=45mm]{../fisl2011/fped.png}
|
|
\end{center}
|
|
|
|
\begin{itemize}
|
|
\item Fully parametric
|
|
\item Automated repetition (loops, tables, sub-frames)
|
|
\item GUI or text-based
|
|
\item Automatic measurements
|
|
\item Output: KiCad, Postscript, Gnuplot
|
|
\end{itemize}
|
|
\end{frame}
|
|
|
|
% --- Footprint Catalog ------------------------------------------------------
|
|
|
|
\begin{frame}{Footprint Catalog}
|
|
\begin{itemize}
|
|
\item Like schematics symbol catalog, but for footprints
|
|
\item Added value: measurements, pad types
|
|
\end{itemize}
|
|
|
|
\begin{center}
|
|
\includegraphics[width=1.0\textwidth]{cat-mod.pdf}
|
|
\end{center}
|
|
|
|
% URL http://projects.qi-hardware.com/index.php/p/eda-tools/source/tree/master/genkicat/
|
|
{\small \url{tiny.cc/eda-tools-genkicat}}
|
|
\end{frame}
|
|
|
|
% --- Layout History ----------------------------------------------------------
|
|
|
|
\begin{frame}{Layout History}
|
|
\begin{itemize}
|
|
\item Layout revision history
|
|
\item To do $\ldots$
|
|
\end{itemize}
|
|
|
|
\vskip5cm
|
|
%% URL http://projects.qi-hardware.com/index.php/p/eda-tools/source/tree/master/brdhist/
|
|
% {\small \url{tiny.cc/eda-tools-brdhist}}
|
|
\end{frame}
|
|
|
|
% --- Gerber Renderer ---------------------------------------------------------
|
|
|
|
\begin{frame}{Gerber Renderer (prettygerbv)}
|
|
\begin{columns}
|
|
\begin{column}[l]{8.5cm}
|
|
\begin{itemize}
|
|
\item ``Photorealistic'' view of PCB
|
|
\item Combines Gerber (traces, drawings) and Excellon (holes)
|
|
\item Easy to see issues with solder paste, silk screen,
|
|
solder mask, $\ldots$
|
|
\item Uses gerbv for rendering
|
|
\end{itemize}
|
|
\vskip10mm
|
|
% URL http://projects.qi-hardware.com/index.php/p/eda-tools/source/tree/master/fab/prettygerbv/
|
|
{\small \url{tiny.cc/eda-tools-fab-prettygerbv}}
|
|
% MORE ??
|
|
% URL http://projects.qi-hardware.com/index.php/p/eda-tools/source/tree/master/fab/
|
|
{\small \url{tiny.cc/eda-tools-fab}}
|
|
\end{column}
|
|
|
|
\begin{column}[r]{4cm}
|
|
\includegraphics[width=3cm]{../fisl2011/atusb-front.png}
|
|
\end{column}
|
|
\end{columns}
|
|
|
|
\end{frame}
|
|
|
|
% --- BOM Processor -----------------------------------------------------------
|
|
|
|
\begin{frame}{BOM Processor (BOOM)}
|
|
\begin{itemize}
|
|
\item BOM $\rightarrow$ select components $\rightarrow$ find supplier
|
|
$\rightarrow$ \\
|
|
shopping list
|
|
\begin{itemize}
|
|
\item Decode product numbers
|
|
\item Match characteristics (manufacturer part)
|
|
\item Find part in inventories (distributor part)
|
|
\item Select best price
|
|
\end{itemize}
|
|
\item Work in progress. Rewrite from Perl to C.
|
|
% \item Snag: Digi-Key spider no longer works
|
|
\item Future: Help with component selection
|
|
\end{itemize}
|
|
\vskip3mm
|
|
% URL http://projects.qi-hardware.com/index.php/p/eda-tools/source/tree/master/b2/
|
|
{\small \url{tiny.cc/eda-tools-b2}}
|
|
\end{frame}
|
|
|
|
% --- BOOM Data Flow ----------------------------------------------------------
|
|
|
|
%\begin{frame}{BOOM Data Flow}
|
|
%DRAWING
|
|
%\end{frame}
|
|
|
|
% --- Schematics Design Rules -------------------------------------------------
|
|
|
|
\begin{frame}{Schematics Design Rules}
|
|
Work in progress. First compilation by Adam Wang.
|
|
|
|
\begin{itemize}
|
|
\item Clean visual representation
|
|
\item Compatibility with post-processors (e.g., BOOM)
|
|
\end{itemize}
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item Value naming (4k7, 10nH, $\ldots$)
|
|
\item Junction style
|
|
\item Naming of negated pins (e.g., nRESET)
|
|
\item Text placement and size
|
|
\item Checklists for reviews
|
|
\end{itemize}
|
|
|
|
{\small \url{en.qi-hardware.com/wiki/Rules_on_Editing_Schematics}}
|
|
\end{frame}
|
|
|
|
% --- Qi-Hardware Workflow ----------------------------------------------------
|
|
|
|
\begin{frame}{Qi-Hardware Workflow}
|
|
\begin{center}
|
|
\includegraphics[width=1.0\textwidth]{all.pdf}
|
|
\end{center}
|
|
\end{frame}
|
|
|
|
% --- Conclusion --------------------------------------------------------------
|
|
|
|
\begin{frame}{Conclusion}
|
|
Experience this far:
|
|
\begin{itemize}
|
|
\item KiCad is a good basis for collaborative projects
|
|
\item Easy to extend, thanks to open design
|
|
\item Automation makes workflow less intimidating
|
|
\end{itemize}
|
|
|
|
To do:
|
|
\begin{itemize}
|
|
\item Spread the word
|
|
\item Finish BOOM and write brdhist
|
|
\item Unify meta-data (bookshelf, etc.)
|
|
\item Improve quality of libraries
|
|
\item Command-line support in mainline KiCad
|
|
\end{itemize}
|
|
|
|
\vskip2mm
|
|
{\small \url{projects.qi-hardware.com/}} \\
|
|
{\small \url{downloads.qi-hardware.com/people/werner/fisl13.pdf}}
|
|
\end{frame}
|
|
|
|
\end{document}
|