balloon open hardware licence - fosdem · simputer balloon flavio ribeiro arm9 camera open graphics...

Balloon Open Hardware Licence

Wookey(Balloonz / Toby Churchill Ltd)[email protected]

FOSDEM 2007,Brussels

Open HardwareBalloon Open Hardware Licence

1 Open Hardware

2 Balloon Open Hardware Licence

Wookey Balloon Open Hardware Licence

What is Open Hardware?

Documented Interface/hardwareFree firmwareVHDL (CPUs, subsystems) - OpenCores.orgOpen designsRepRap machine

Open Designs

LARTSimputerBalloonFlavio Ribeiro ARM9 CameraOpen Graphics Dev boardDarell Harmon’s SBC

Open Designs - LART

SA1100, 32MB RAM, KSB add-onsMIT licence - do what you like, no guarantees.

http://www.lart.tudelft.nl/

Open Designs - Simputer

StrongARM, Smart card, LCDFree manufacture, copyleft changes, licenced sales.4000 sold

http://www.simputer.org/

Open Designs - Balloon2

StrongARM, CPLD, USB, Audio, Expansion busFree manufacture and sales, restricted changes

http://Balloonboard.org/

Open Designs - Flavio Ribeiro’s ARM9 Camera

ARM9, Altera FPGA, camera chipDistribution, acknowledgement, no changes.

http://www.ime.usp.br/~fr/sbc/

Open Designs - Open Graphics Dev board

Big FPGA between PCI and videoGPLed schematics and Gerbers: Open PCB.

http://opengraphics.org/

Open Designs - Darell Harmon’s SBC

Atmel ARM9 CPU+ Xilinx FPGAGPL

http://dlharmon.com/

Balloon Project

Followed on from LARTStarted 2000 - Steve WisemanBalloon2 protype 2002, shipping 2003 - ~3500 madeBalloon3 started 2004, built 2006. Compatible size/bus.Companies - resources

Aleph OneToby Churchill LtdGuralpCambridge UniversityiTechnicBalloonz

Balloon Spec

PXA 270 - 520Mhz784MB RAM, 1GB NAND, Max 32MB NORFPGA - (1 million gates) or CPLDUSB host, slave, OTGCF, MMC interface, ADC, GPIOExpansion bus, 16-bit ‘Samosa’ busLCD, I2C, Audio, Camera, Touch screen

Open Hardware Licences

MITSimputer - Lawyer-written, Trademark, Licence feeVHDL licences - Opencores, GPLSeveral GPL-based

Hardware Design Public LicenceFreedom CPU Licence

Differences from Software

Copying cost is large, often very large4 prototype balloons - C5000balloon3 derived from balloon2 - C125000

Legal requirementsSale of goods act.EMCComponent use restrictions - Medical equipmentBatteries - safety, disposal

Very expensive typos - duff boards

Open Source (copyleft) principlesDistinguishes between designers, manufacturers,distributors and everyoneProtect each group from litigation/liabilityDesign group controls designPractical commerciallyAllows connection to prorietary hardwareHas Logo to indicate licence termsFully documented designsFirmware outside licence scope

Design Groups

Set of people responsible for designStructure and management is up to each groupReleases matterDefined group needed by manufacturers and distributors

Types of info

Hardware Design Files (HDF) - The design itselfManufacturing Info (MI) - Gerbers, BOMDesign Documentation (DD) - Schematics, pinouts,memory map, user guide

Types of info

BOHL - Everyone

May:Redistribute DDManufactureMake minor MI changesMake Component changesInstall firmware

Must:Pass on changesBe reponsible for own use

Must not:Include in non-BOHL designsMisrepresent or remove copyright notices/design markApply for patents

BOHL - Everyone

BOHL - Manufactuers

May:Manufacture freelyAdd identifying marksProvide warranty

Must:Comply with legislation, and show compliance on requestProvide MI and DD to users (nominal fee permitted)

Obligations remain, but rights lapse, if licence broken.

BOHL - Manufactuers

BOHL - Distributers

May:Market and distribute freelyAdd identifying marksProvide Warranty

Must:Comply with legislationInform users of LicenceInform users of any use restrictions

BOHL - Distributers

Designers

May:Access and modify HDF freelyBase a new (BOHL) design on Design FilesPerform simulationsLeave design group

Must:Record HDF modifications (in DD)Include visible design markInclude release IDPass on HDF modificationsEnsure additions do not infringe 3rd partiesProvide info on use/config (normally in DD)

Must not:Claim rights over designPass on HDF outside design group

Designers

Licence Needs Review

Potentially a widely-used licenceDesigners, manufacturers, distributors, users - pleasecommentLegal review to followhttp://balloonboard.org/balloonwiki/OpenHardwareLicense

balloon open hardware licence - fosdem · simputer balloon flavio ribeiro arm9 camera open graphics...

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