oshug

oshug@oshug.org

424 discussions

OSHUG #59 — CHERI CPU, Adding Security to Compilers, Trust & Provenance in Open Data, Thursday 27th July.
by Andrew Back 18 Jul '17

18 Jul '17

Hello, Registration is now open for the fifty-ninth meeting, featuring talks on trust and provenance in Open Data at GDS, adding security to compilers (LADA project and SECURE project), extending a RISC ISA to add capability enhancements for improved security (CHERI project). A big thanks to Sevan Janiyan and Andy Bennett for arranging this meeting! Details and registration link below. Cheers, Andrew // OSHUG #59 — CHERI CPU, Adding Security to Compilers, Trust & Provenance in Open Data. On the 27 July 2017, 18:00 - 21:00 at BCS London, 1st Floor, The Davidson Building, 5 Southampton Street, London, WC2E 7HA. Registration: http://oshug.org/event/59 After a brief hiatus we return this month for an evening of talks on the topics of trust and provenance in Open Data at GDS, adding security to compilers (LADA project and SECURE project), extending a RISC ISA to add capability enhancements for improved security (CHERI project). — Trust and provenance in Open Data T.B.A. — Adding security to compilers Information leakage via side channels is a widely recognised threat to cyber security. In particular small devices are known to leak information through physical channels, i.e. power consumption, electromagnetic radiation, and timing behaviour. Serveral implementation techniques and countermeasures are arising nowadays against this kind of threaths, but still only fully equipped testing labs with skilled people can afford to test new implementations against leakage attacks. We will focus on the information leakage due to timing behaviour and the possibility of 'cache-based' timing attacks. Then we will discuss about my work in the context of two projects (LADA project and SECURE project) which aim at bringing the skill of a testing lab to the desk of a developer of standard consumer devices, without the need for domain specific knowledge through the development of open source compilers. * Paolo Savini is an Intern Compiler Engineer at Embecosm Ltd working on the SECURE Project, where he is helping to bring the next generation of secure programming techniques to open source compilers. Prior to joining Embecosm he cooperated with the LADA project at the University of Bristol in order to explore the possility of creating compiler tools to help improve implementation of cryptography. Paolo is currently graduating at the University of Pavia (Italy), where he achieved a Bachelor degree in Electronic and Computer Engineering. — The CHERI CPU: Hardware-software co-design for security This talk will introduce the CHERI CPU and associated C/C++ compiler stack. Various design decisions in the project were made based on the needs of programming languages to support real-world code and the requirements of hardware implementation. The C specification is intentionally vague and it would be very easy to create a conforming implementation of the language if this were the only requirement, but a C environment is only as good as the code that it runs. In the CHERI project, we have investigated a number of common C idioms and ensured that these can be supported by our hardware, while simultaneously allowing fine-grained memory safety and coarser-grained compartmentalisation of C programs. * David Chisnall is a Senior Research Associate at the University of Cambridge. His primary research interest is safe interoperability between programming languages. Most recently, he has been working on this in the context of the CHERI project, creating an implementation of the C programming language that can be used safely in the same process as languages with stricter safety guarantees. He presented a case study of this, allowing Java and C code to coexist in the same process without violating any of the JVM's safety and security guarantees at ASPLOS earlier this year. David is an active open source contributor, having been an LLVM committer since 2008, a member of the FreeBSD Core Team for two successive terms, and the author / maintainer of widely deployed Objective-C and C++ runtime libraries. Note: Please aim to arrive by 18:15 as the event will start at 18:30 prompt. -- Andrew Back http://abopen.com

1 0

Open Source Hardware Camp 2017 — Sat 2nd & Sun 3rd September, Hebden Bridge.
by Andrew Back 01 Jun '17

01 Jun '17

Hi All, I'm pleased to announce that we have 8 talks and 6 workshops confirmed for Open Source Hardware Camp 2017, with a few more TBC. As ever, some really great topics being covered and excellent speakers. Should you be interested in giving a talk and have not yet put forward a proposal, please drop me a line off-list ASAP. As in previous years, there will be a social event on the Saturday evening and OSHCamp is once again being hosted to coincide with the Wuthering Bytes technology festival. You're encouraged to check the website for details of other participating events, as some are likely to be of interest. http://wutheringbytes.com/ We have some fantastic talks lined up for Festival Day, including a keynote from Dr David Hartley FBCS on the early history of computing in Britain, and one on particle accelerators (with live demo!) Cheers, Andrew // Open Source Hardware Camp 2017 On the 2nd September 2017, 09:00 Saturday morning - 16:00 on the Sunday afternoon at The Birchcliffe Centre, Birchcliffe Road, Hebden Bridge, West Yorkshire, HX7 8DG, UK. Registration: http://oshug.org/event/oshcamp2017 Open Source Hardware Camp 2017 will take place place in the Pennine town of Hebden Bridge. For the fifth year running it is being hosted as part of the Wuthering Bytes technology festival. Hebden Bridge is approximately 1 hour by rail from Leeds and Manchester. Budget accommodation is available at the Hebden Bridge Hostel which adjoins the venue, with private rooms available and discounts for group bookings. Details of other local accommodation can be found at www.hebdenbridge.co.uk. There will be a social event on the Saturday evening from 8PM. *** Saturday :: Talks *** — An introduction to RISC-V, a Free and Open RISC Instruction Set Architecture An Instruction Set Architecture (ISA) defines the interface between a computer's hardware and software, the valid instructions that the machine may execute. Unlike other ISAs (such as those from ARM, MIPS, Intel, etc.), the RISC-V ISA is provided under an open-source licence, giving anyone the freedom to create a RISC-V implementation. This freedom has enabled a proliferation of RISC-V implementations for a wide range of applications, from small 32-bit embedded cores up to complex 64-bit multicore superscalar designs. As RISC-V is a relatively new ISA, there are many parts of the ecosystem such as compilers, assemblers, simulators, debugging tools, and other supporting infrastructure in rapid concurrent development. This talk gives an overview of the RISC-V ISA, and takes a look at some of the more interesting RISC-V cores. We will take a short look at the present state of the RISC-V software ecosystem, and try to predict where we will see RISC-V implementations used in the future. * Dr Graham Markall has a background in languages and compilers for scientific computing, and is well known for his work on the Numba project. He is part of Embecosm’s GNU tool chain team, where his current projects include the implementation of security enhancements to the GCC and LLVM compilers for RISC-V and ARM, and the development a GCC-based toolchain for a customised RISC-V processor. — Artificial intelligence and Machine learning for embedded systems Artificial Intelligence (AI) and Machine Learning (ML) allow technology to automate what was previously considered unique to human intelligence, we already see this in big data with image classification, speech recognition and sentiment analysis to name just a few applications. How will this effect embedded systems and hardware, what part can open source play in this emerging area by embedding intelligence or intuition into future products. Alan will provide an overview the current state of machine learning and inference techniques used within embedded applications, he will show how open source software and hardware can be used to apply these ML techniques into embedded and robotics and projects. Areas covered will include Artificial Neural Networks (ANN), Recurrent Neural Networks (RNN), Reinforcement Learning (RL) along with differences between training and inference deployments. Alan will also discuss some emergent AI hardware areas such as energy efficient neuromorphic computation and processing which can perhaps commodify AI over the coming decades. With both open source software and hardware we are poised to rapidly advance both education, experimentation and development of machine learning into working embedded automation, there could not be a better time to get into this emerging area of technology. * Alan Wood has been working with parallel distributed programming for several decades. His recent work includes smart grids, 3D printers, robotics, automation and biotec diagnostics. His current research is focused on machine learning for embedded automation using FPGA, CSP and Neural Turing Machines. He is a long term advocate of open source communities, a moderator (aka Folknology) for xCORE, the co-founder of myStorm open hardware FPGA community, as well as a co-founder of Surrey and Hampshire Makerspace. — So you decided to run a workshop Over the past year many fixes/improvements/bug reports have been made for the NetBSD workshop to run smoothly. This talk covers the changes which go in to a project to insure a workshop goes smoothly on the day, how a workshop evolved, and what was done to prevent the same issues reoccurring. * Sevan Janiyan is founder of Venture 37, which provides system administration & consultancy services. As a fan of operating systems and computers with different CPU architectures, in his spare time he maintains builds of open source software on a variety of systems featuring PowerPC, SPARC and armv7l CPUs. He hopes to own a NeXTcube & OMRON LUNA-88K2 one day. — An Introduction to Open Source for Film production : From Sensor to Post This discussion will be based on the future of Open Source and its relationship wth Film & TV Production. New colour developments through ACES (Academy Color Encoding System) and new approaches by vendors such as Blackmagic and, of course, Blender, we are seeing a wider adoption of Open Source. We will discuss ACES and Apertusº Axiom OS camera and see where the future may lie regarding OS and Film Production. * Daniel Mulligan started in cameras (assisting and focus pulling), before then graduating up the ranks to Camera Operating for F1, BBC Dramas then 2nd Unit Cinematography for Feature Theatrical Productions. Daniel also started and privately ran a rental house supplying digital cameras, plus an onset/location company providing location post and digital camera workflows. This culminated just recently with a 2-3 year stint at Technicolor as their locations digital dailies supervisor, looking after projects such as Jupiter Ascending, Mortdecai and The Man from UNCLE. Now running new Companies for Open Source Cinema and an imaging research Company called Cine Imaging Lab, Daniel is also writing new Courses for the University of Portsmouth for both Undergraduate and Masters Degree in Imaging Science and consulting for image workflows for Post Production and VFX Houses. During this time Daniel has seen a few changes and re-iterations of the current digital workflows and it has struck him over time how much we do rely on proprietary systems for most delivery. And perhaps quite rightly so, as the delivery requirements for VFX to DI, to onset LUTs and more need that service. — Some micro:bit stories Lawrence recently helped the BBC and a consortium of partner companies produce the micro:bit. He thinks there are some stories worth telling about the instigation and development of the product. - BBC micro:bit grew from the passion of real people, not publicity departments - Asking for a few million pounds is quite fun - Shenzhen may be fast, but ShenFen is pretty good too - Engineers like the probably-impossible - Some cost and design decisions - Your support would be much appreciated * Lawrence Archard grew up among heterodyne whistles of an amateur radio rig hand-built by his grandad, who started him off building a two-transistor musical oscillator. That led to him studying Music Technology at Keele University, then Electronics primarily as an excuse to stay there. After a spell designing synthesizers, he had to get a 'proper job' with a consultancy developing high-volume, cost-sensitive products across a range of industries - music, toys, construction, medical, office and kitchen appliances. He became an early proponent of IoT (but not for the fridge ordering milk) and left to work with an informal group of associates in 2000. As DevelAngel, Lawrence acts as interim CTO or project manager for angel and VC-funded startups. For mainstream R&D-for-hire, there is sister entity uPBeat Product Development. — Robot Operating System Robot Operating System is 8 years old, and despite the fact that it isn't actually an operating system has become the default platform for robotic research in Universities around the world. I will talk about the recent version of their turtlebot platform that has made the hardware side much more open, and may attempt a live demo. It might even work this time. In addition I will also talk about ROS2, the next version that is currently in development. * Nick Weldin initiated the first public Arduino course in the UK in 2005, because he didn't want to program PIC chips on the accounts computer at work after everyone else had gone home any more, and he couldn't get his boss to send him to the Arduino course that was running in Spain. When Tinker London started up he joined them and ran courses teaching Arduino wherever anyone was interested. He is co-author of the Arduino Cookbook and now works for Middlesex University. — BuggyAir for mobile personal pollution exposure monitoring Last year we did a trial of a consortium project called BuggyAir for mobile personal pollution exposure monitoring. This was based on GSM comms using a smartphone for that and GPS. This year we have made a second version with LoRaWAN comms and tested this in London. We have also demonstrated an initial version with a choice of the two comms approaches. We are about to do another trial in Cambridge and our partners are also working on another version of the hardware to make it smaller and lighter without compromising the sensor precision. * Paul Tanner is a consultant, developer and maker in wood, metal, plastic, electronics and software. His day job has evolved from IT-based business improvement for SMEs to a specialisation in Internet of Things system development. By night he turns energy nut, creating tools to optimise energy use and for "assistive" applications. Paul graduated in electronics and was responsible for hardware and software product development and customer services in several product and service start-ups, forming his consulting firm Virtual Technologies in 2000. — Computer Science from the Ground Up As computers become increasingly sophisticated, it is difficult for students of computing science and electronic engineering to gain a broad enough understanding of the technology to fully grasp the underlying principles of some modern devices. In his presentation, Ken takes you back to when computers were much simpler, and proposes that with the help of practical learning by doing, and a bottom up approach, there is a better way of teaching the next generation of engineers. * Ken Boak built his first computer from a kit, aged 17 when he should have been revising for A Levels. Despite mediocre A level grades, Ken got a 1st class degree in electronic engineering in 1986 and went on to work on early experimental HDTV systems at BBC Research Department. In the last 30 years, and 10 subsequent jobs, Ken has encountered much of the fabric of the Digital Revolution - but chosen to ignore 95% of it - and now spends quality time on a narrow boat in Hebden Bridge. *** Sunday :: Workshops *** — Debugging and Troubleshooting Projects with OpenScope MZ Participants learn how to connect a portable multi-function programmable instrumentation module to computer (through WiFi or a USB cable) to acquire, analyze, visualize, and control signals from circuits, sensors, and other electronic devices. Run by: engineers from Digilent — An introductory workshop to NetBSD on embedded platforms An introductory workshop to NetBSD in the context of developing embedded platforms. NetBSD is a fully featured operating system with great agility that has been around for many many years. This workshop is intended to introduce some of the features which are available in the operating system as standard. We'll explore how to go from obtaining the source code to building the operating system, cover features which simplify working with the system, how accessible it is without resorting to installing third party software or writing any C. In this workshop participants will learn how to use the LoRaWAN development shield based on the Microchip RN2483 LoRaWAN module. This comes with a number of basic sensors, while the shield also includes additional Arduino headers so you can add your own sensor shields and devices. Topics we will cover: 1. Cross compilation support with build.sh 2. File tamper detection / execution prevention with Veriexec 3. High-level access to subsystems e.g exploring GPIO via Lua 4. Rapid development with Rumpkernel Participants should bring: * A laptop (Macos, Linux or Windows (windows 10 specifically)) * ARM board (Pi or BeagleBoneBlack and such) * USB->TTL for serial access Run by: Sevan Janiyan — Robot Operating System - a practical intro This will be a practical hands on session getting started with using ROS to get robots to do things. You will learn about what a ROS system is how to ineract with it, and write basic code to work within a ROS system. We will look mostly at mobile robots, and will spend time looking at mapping and autonomous navigation. We will have a few robots and sensors on hand to get practical experience with. You will also learn about using robot simulators with ROS, so that you can carry on experimenting after the workshop even if you don't have access to a robot. You will need to bring a computer to work with. ROS currently runs primarily on Ubuntu. We will have virtual machine images with ROS installed that you can use. No knowledge of ROS is assumed, but some experience using the command line and python would be useful. Run by: Nick Weldin — Open Source Applications for Feature Film Workflows: Demonstrating an entire 4K/HD workflow from the sensor to dailies and Post Production We will firstly be demonstrating the Axiom 4K Open Source camera from Apertusº. The camera has a 4K CMV12000 sensor that is entirely Open which allows us the opportunity to create a camera unencumbered by proprietary restrictions. Recording live 1080p30 video and capturing 4K images as RAW snap12 files we can demonstrate how the RAW imaging can be processed and turned into usable 4K images with correct colour applied for Post. We can process then to Log-C encoded imaging for full information for the Grading processes. Next will be a look at the imaging as it is processed digitally. By using a digital Lab system we can then playback the captured images and produce our final desired deliverable. Run by: Daniel Mulligan — Artificial Intelligence and Machine Learning This workshop will take participants through an ML/AI based embedded application, you will need a Raspberry Pi and something to communicate with it (Laptop etc..).This will provide a lightning hands on intro to using embedded AI. Run by: Alan Wood — Assembling the OSHCamp kit Get help with soldering this year's kit. * Chelsea Back is a trainee engineer and is working towards a degree in Electronic Engineering. She enjoys building microcontroller projects and teaching people how to solder, is a student member of the IET and a STEM Ambassador. NOTE: * There are separate tickets for Saturday and Sunday. * A light lunch and refreshments will be provided each day. * Please aim to arrive between 09:00 and 09:15 on the Saturday as the event will start at 09:20 prompt. -- Andrew Back http://abopen.com

1 0

OSHUG 58 — Getting started with NetBSD on embedded platforms Pt. 2, Thursday 18th May.
by Andrew Back 09 May '17

09 May '17

Hello, Registration is now open for the fifty-eighth meeting, which will provide a hands-on introduction to NetBSD on embedded platforms, picking up where the workshop left off at the previous meeting in April. Cheers, Andrew // Event #58 — Getting started with NetBSD on embedded platforms Pt. 2 On the 18 May 2017, 17:30 - 20:00 at BCS London, 1st Floor, The Davidson Building, 5 Southampton Street, London, WC2E 7HA. Registration: http://oshug.org/event/58 — Workshop scope Following on from the previous workshop, we will be continuing with the theme of NetBSD on embedded platforms. This time covering GPIO access with lua and rapid development with Rump kernel, which we did not get to in the previous workshop due to the lack of time. If you did not get to attend the previous workshop, not to worry, notes are available [1] and assistance will be provided on the day. [1] http://oshug.org/pipermail/oshug/2017-April/000608.html — Participant requirements You will need to bring: * Your own laptop (running Windows, Linux or Mac OS X); * A Raspberry Pi or BeagleBone Black; * An appropriate SD card for your board; * USB card reader to write a new OS image onto said SD card; * An ethernet cable to connect board to laptop and/or a USB UART/FTDI adapter to access the board via the serial console. — Windows 10 users Install Windows Subsystem for Linux. — Windows 10 / Linux (Debian/Ubuntu) users Install the following packages: * build-essential * zlib1g-dev * flex * libc6-dev-i386 — Mac OS X users Install GCC or clang via Xcode or command line tools. — All Everyone should fetch the source code for NetBSD: Download all source archives (.tgz files) from http://nycdn.netbsd.org/pub/NetBSD-daily/HEAD/201704270800Z/source/sets/ . (It is likely the above URL will become invalid as old builds are purged and new ones are generated. Substitute 201704270800Z with the most recent release available on http://nycdn.netbsd.org/pub/NetBSD-daily/HEAD). Any questions should be directed to the discussion list. — Hosted by Sevan Janiyan is founder of Venture 37, which provides system administration & consultancy services. As a fan of operating systems and computers with different CPU architectures, in his spare time he maintains builds of open source software on a variety of systems featuring PowerPC, SPARC and armv7l CPUs. He hopes to own a NeXTcube & OMRON LUNA-88K2 one day. Note: Please aim to arrive by 17:15 as the workshop will start at 17:30 prompt. -- Andrew Back http://abopen.com

2 1

pkgsrcCon 2017 - Call for talk proposals
by Sevan Janiyan 05 May '17

05 May '17

Hi all, Apologies for the software related post. This summer the pkgsrc[1] project is holding its annual developer conference in London at the British Computer Society in association with the Open Source Specialist Group[2] on Saturday the 1st of July and a hack day at the London Hack Space[3] on Sunday the 2nd of July. While the conference is primarily about pkgsrc, it's on the topic of building & packaging open source software in general. I'm currently contacting different communities to raise awareness of the event & to ask folks to submit talks on such topics if they are interested. There will be a formal announcement for attendees soon (it's free & open to all) but in the meantime, if you would like to give a talk on the subject of building or packaging open source software (the more technical the better) please send your submission to sevan(a)NetBSD.org (including a title, abstract and a short bio in the submission (for the website)). For those not familiar with pkgsrc, it's a cross platform packaging system by the NetBSD project, originally forked from FreeBSD ports but with a portability twist added to cover a diverse range of operating systems. It enables you to have such things as the same version of software built with matching set of patches across a wide range of operating systems and to use the same workflow on said operating systems. At OSHUG #55 - "FPGA projects past, planned and possible", the framework I was demonstrating in the "Deploying your FPGA toolchain consistently regardless of your development environment" talk was pkgsrc. Regards, Sevan [1] http://pkgsrc.org [2] http://ossg.bcs.org/ [3] https://london.hackspace.org.uk

1 0

Notes from OSHUG #57
by Sevan Janiyan 24 Apr '17

24 Apr '17

Hello, I've written up the notes from last Thursday's workshop, give it a try if you have a Pi handy. You can use a Pi 3 if you have it hooked up to a HDMI monitor & keyboard. I skipped on the instructions for the BeagleBone Black, email me off list if you'd like to use such a device. Sevan Janiyan These notes cover 1) Cross compilation support (build.sh) 2) Tamper proofing / Tamper detection (Veriexec) *Useful link*: http://man.NetBSD.org - Man pages shipped with the OS available from a web browser http://www.netbsd.org/docs/guide/en/index.html - The NetBSD Guide http://cvsweb.netbsd.org/bsdweb.cgi/src/?only_with_tag=MAIN - Web interface to the OS source code *Cross compilation support as standard* *Requirements*: *Windows 10* Install Windows Subsystem for Linux https://msdn.microsoft.com/en-us/commandline/wsl/about https://msdn.microsoft.com/en-us/commandline/wsl/about Windows 10 / Linux (Debian/Ubuntu) build-essential zlib1g-dev flex libc6-dev-i386 *Mac OS X* GCC or clang via Xcode or command line tools xcode-select --install *Windows 8 & Prior* Install Linux dependencies via Cygwin. TODO: list dependencies *Fetch the sources*: download all source archives (.tgz files) from http://nycdn.netbsd.org/pub/NetBSD-daily/HEAD/201704222230Z/source/sets/ (It is likely this url will become invalid as old builds are purged and new ones are generated. Substitute 201704222230Z with the most recent release available on http://nycdn.netbsd.org/pub/NetBSD-daily/HEAD. *Extract all fetched files*: for file in *.tar.gz do tar -xzf $file done *Change into the extracted source directory*: cd usr/src *List supported architectures and variations we can cross compile for*: ./build.sh list-arch Reduce the listing to the ARM evaluation board archs which devices such as the Pi family are categorised under: ./build.sh list-arch | grep evbarm MACHINE=evbarm MACHINE_ARCH=arm ALIAS=evboarm-el MACHINE=evbarm MACHINE_ARCH=armeb ALIAS=evboarm-eb MACHINE=evbarm MACHINE_ARCH=earm ALIAS=evbearm-el DEFAULT MACHINE=evbarm MACHINE_ARCH=earmeb ALIAS=evbearm-eb MACHINE=evbarm MACHINE_ARCH=earmhf ALIAS=evbearmhf-el MACHINE=evbarm MACHINE_ARCH=earmhfeb ALIAS=evbearmhf-eb MACHINE=evbarm MACHINE_ARCH=earmv4 ALIAS=evbearmv4-el MACHINE=evbarm MACHINE_ARCH=earmv4eb ALIAS=evbearmv4-eb MACHINE=evbarm MACHINE_ARCH=earmv5 ALIAS=evbearmv5-el MACHINE=evbarm MACHINE_ARCH=earmv5eb ALIAS=evbearmv5-eb MACHINE=evbarm MACHINE_ARCH=earmv6 ALIAS=evbearmv6-el MACHINE=evbarm MACHINE_ARCH=earmv6hf ALIAS=evbearmv6hf-el MACHINE=evbarm MACHINE_ARCH=earmv6eb ALIAS=evbearmv6-eb MACHINE=evbarm MACHINE_ARCH=earmv6hfeb ALIAS=evbearmv6hf-eb MACHINE=evbarm MACHINE_ARCH=earmv7 ALIAS=evbearmv7-el MACHINE=evbarm MACHINE_ARCH=earmv7eb ALIAS=evbearmv7-eb MACHINE=evbarm MACHINE_ARCH=earmv7hf ALIAS=evbearmv7hf-el MACHINE=evbarm MACHINE_ARCH=earmv7hfeb ALIAS=evbearmv7hf-eb MACHINE=evbarm64 MACHINE_ARCH=aarch64 ALIAS=evbarm64-el DEFAULT MACHINE=evbarm64 MACHINE_ARCH=aarch64eb ALIAS=evbarm64-eb eb and el indicate the endianness (big or little) hf refers to hardware floating point support. For the Pi, we'll target the ARMv6 with hardware floating point support in little endian mode as the lowest common denominator: evbearmv6hf-el *Build the cross compile toolchain*: To build the tools without requiring elevated privileges (root) the -U flag specifies unprivileged To save us have to specify the MACHINE/MACHINE_ARCH combination which would be done using -m/-a, we specify the ALIAS listed above to -m To speed up the build process we increase the number of parallel jobs the build we execute. This number should match the number of available cores & not exceed it. ./build.sh -U -m evbearmv6hf-el -j2 tools *Build a new kernel for the Pi or Pi2*: ./build.sh -U -m evbearmv6hf-el -j2 kernel=RPI or ./build.sh -U -m evbearmv6hf-el -j2 kernel=RPI2 *To build a complete operating system including images*: **WARNING** Depending on the system it may take a little time ./build.sh -U -m evbearmv6hf-el -j2 release When the build is finished, a report is printed out which contains details of where the generated files are located (this will be relative to your system) & the time it took to build. ===> Summary of results: build.sh command: ./build.sh -U -m evbearmv6hf-el -j2 kernel=RPI build.sh started: Mon Apr 24 17:19:18 BST 2017 NetBSD version: 7.99.70 MACHINE: evbarm MACHINE_ARCH: earmv6hf Build platform: NetBSD 7.99.70 i386 HOST_SH: /bin/sh MAKECONF file: /etc/mk.conf TOOLDIR path: /usr/src/obj/tooldir.NetBSD-7.99.70-i386 DESTDIR path: /usr/src/obj/destdir.evbarm RELEASEDIR path: /usr/src/obj/releasedir Updated makewrapper: /usr/src/obj/tooldir.NetBSD-7.99.70-i386/bin/nbmake-evbearmv6hf-el Building kernel without building new tools Building kernel: RPI Build directory: /usr/src/sys/arch/evbarm/compile/obj/RPI Kernels built from RPI: /usr/src/sys/arch/evbarm/compile/obj/RPI/netbsd build.sh ended: Mon Apr 24 17:27:42 BST 2017 ===> . *Writing Pi image to SD card*: Either you ran build.sh with the release target or you fetched a pre-built image from nycdn.NetBSD.org for your Pi, such as: http://nycdn.netbsd.org/pub/NetBSD-daily/HEAD/201704222230Z/evbarm-earmv6hf… (It is likely this url will become invalid as old builds are purged and new ones are generated. Substitute 201704222230Z with the most recent release available on http://nycdn.netbsd.org/pub/NetBSD-daily/HEAD. *Uncompress image*: gunzip rpi.img.gz Use the flash instructions relevant to the operating system the SD card will be written on http://elinux.org/RPi_Easy_SD_Card_Setup Section 3.3 for Windows Section 3.4 for Mac OS X Section 3.5 for Linux Where the documentation refers to Raspbian images, substitute the NetBSD rpi.img you have. *Preparing to boot*: For the Pi 3, serial console access is not currently available in NetBSD. The system should work with an HDMI display & USB keyboard however. There is nothing further to do for you in this section. For the Pi & Pi 2, connect your USB to TTL adapter to the GND, TXD & RXD pins The location of the pins are the same on the Pi & Pi2, see https://www.raspberrypi.org/documentation/usage/gpio/images/gpio-led.png and https://pinout.xyz You'll need to run a terminal emulator set at 115200 BAUD. Use the cu utility on Linux & OS X. *On Windows*: Use Terraterm http://ttssh2.osdn.jp Set baud rate to 115200 Choose com port associated with your USB adapter. *On Debian & derivatives* (Ubuntu): you need to install the uucp package to obtain the cu utility. The ownership of the device file for the USB adapter need to be changed otherwise you will receive "line in use" error. chown uucp:uucp /dev/ttyUSB0 *On OS X*: Depending on the USB to TTL adapter, the device node in /dev will have a different name Run ls /dev/tty.* to see some of the serial devices detected. Such as /dev/tty.SLAB_USBtoUART or /dev/tty.usbserial-RANDOMCHARACTERS eg /dev/tty.usbserial-AM01Z4V3 *Running cu*: Replace /dev/ttyUSB0 with the device node relevant to your system. sudo cu -l /dev/ttyUSB0 -s 115200 *Exiting cu*: press ~. *Enable serial console on Pi* (not for Pi3): The rpi.img is split into a DOS partition (containing firmware & NetBSD kernel) and NetBSD UFS partition (containing NetBSD operating system). On the DOS partition there is file called cmdline.txt The first line reads root=ld0a console=fb Delete the console=fb so that it reads root=ld0a Save & exit text editor *Booting Pi*: Insert SD card into Pi Apply power Login as root (no password) *Tamper proofing / Tamper detection* (Veriexec) *A device node is needed for veriexec to function, it is currently not created automatically*: cd /dev sh MAKEDEV veriexec *Make a duplicate copy of the ls utility*: cp /bin/ls /bin/ls-2 *Set the veriexec mode to be IDS (Intrusion Detection System) when it runs*: echo veriexec_strict=1 >> /etc/rc.conf *Generate a has of all executables in search patch*: veriexecgen *Verify the hashes on for ls & ls-2 are listed*: grep ls /etc/signatures *Enable veriexec temporarily*: (ignore any errors related to /etc/signatures) /etc/rc.d/veriexec onestart *Confirm you are able to read /bin/ls-2*: cksum -a SHA256 /bin/ls-2 *Clobber /bin/ls-2*: echo 1 > /bin/ls-2 *Try to re-read /bin/ls-2 (it should fail with an error)*: cksum -a SHA256 /bin/ls-2

1 0

Open Source Hardware Camp 2017 (2nd & 3rd Sept) Call for Participation.
by Andrew Back 04 Apr '17

04 Apr '17

Hello, This year Open Source Hardware Camp will take place over the weekend of Saturday 2nd & Sunday 3rd September, hosted as part of the Wuthering Bytes festival in Hebden Bridge, which in 2017 will take place over the course of 10 days (again!) We will be returning to the Birchcliffe Centre in Hebden Bridge, which benefits from the convenience of adjoining, budget accommodation. Proposals for talks and workshops for OSHCamp 2017 are invited! There is no theme and topics may include, for example: * Open source hardware projects * Open development practices and principles * Novel/interesting/fun projects built using open source hardware * Tools (hardware and software) * Skills and techniques, e.g. PCB fab, DIY SMT assembly * Relevant technologies, e.g. SPI/I2C bus programming * ...something else relevant to the community If you would like to give a talk on the Saturday and/or run a workshop on the Sunday please contact me off-list. **** Note that the deadline for submitting titles and abstracts is Monday 1st May. If you would like to discuss ideas etc. please get in touch sooner, rather than later. **** Other events running as part of Wuthering Bytes 2017 and which may be of interest: * Fri 1st: Wuthering Bytes Festival Day * Wed 6th & Thurs 7th: Chip Hack (http://chiphack.org/) * Thurs 7th PM & Fri 8th AM: EDSAC Challenge * Fri 8th AM - Sunday 10th PM: GNU ORConf (http://orconf.org/) Further details on these events to be provided in due course. Cheers, Andrew PS. If you are planning on coming along and thinking of staying at the adjoining hosted, it is worth noting that this can book up quickly. http://www.hebdenbridgehostel.co.uk/ PPS. Super Early Bird tickets for the super organised: https://www.eventbrite.co.uk/e/open-source-hardware-camp-2017-tickets-31845… (pretty sure Eventbrite don't take payment until after the event). -- Andrew Back http://abopen.com

2 5

NetFPGA Developers Summit - Call For Participation
by Neelakandan 29 Mar '17

29 Mar '17

We welcome you to join us at the University of Cambridge on April 20-21, 2017 for the NetFPGA Developers Summit [1]. Held immediately prior to Eurosys 2017, this event is intended to permit participants attend both events with reduced intercontinental travel. The programme includes presentations, live demonstrations, and group discussions on topics that are of an interest to the NetFPGA community. This event will run "un-conference style" in that we brainstorm the actual session schedule on the first morning, with a focus on interactive topics that reflect the interests and exploit the knowledge of the attendees -- but there's also room for traditional talks, etc. There are plenty of break-out rooms for small groups to meet as they see fit. Confirmed topics include: * Running P4 programmes on NetFPGA * Low latency networking * Running network services in hardware * Optical networks * Traffic control tools * More -- See the draft programme on the Wiki [1] See you in Cambridge, The NetFPGA Team http://www.netfpga.org [1] NetFPGA-Developers-Summit-2017 <https://github.com/NetFPGA/NetFPGA-public/wiki/NetFPGA-Developers-Summit-20…>

1 0

Fwd: ORConf 2017 call for participation
by Andrew Back 15 Mar '17

15 Mar '17

The ORCONF 2017 CFP is out! Why not head up to Hebden Bridge and make a week of it, with Open Source Hardware Camp, ORCONF and Chip Hack :o) Details below. Cheers, Andrew -------- Forwarded Message -------- Subject: [Orconf-announce] ORConf 2017 call for participation Date: Wed, 15 Mar 2017 23:03:14 +1100 From: Julius Baxter <julius(a)fossi-foundation.org> To: orconf-announce(a)lists.librecores.org Hi all, ORConf 2017 will be held in Hebden Bridge in the UK from Friday to Sunday, September 8th to the 10th. I'd like to announce that we've opened submissions for presentations, posters and hardware displays at the event. Proposals may be submitted through this form: https://goo.gl/forms/fwALSQvbyUfE83Fh1 ORConf aims to be an event aimed at anyone involved in free and open source computer system design, with an emphasis on open source digital design. So if you contribute to a tool to help put systems together, or develop on and debug them, or publish components and IP, or even make fully-open source chips(!) we'd very much like to hear from you! ORConf this year is being held as part of the esteemed Wuthering Bytes Festival of Technology: http://wutheringbytes.com/ There will be events in Hebden Bridge starting September 1st, so do check it out. We'll be in touch when general registration opens and further details of the event become available, which shouldn't be too far away. All details will be on http://orconf.org as they become available. As always we're looking for sponsorship for this year's event. If you think you'd like to have your company's name associated with it, please email us at orconf(a)fossi-foundation.org <mailto:orconf@fossi-foundation.org> and we'll get talking. Whether or not you're intending on presenting, we're hoping to see everyone again for another year of great presentations and, this time, a few good English ales. Cheers, The ORConf team

1 0

OSHUG 57 — Getting started with NetBSD on embedded platforms, Thursday 20th April.
by Andrew Back 15 Mar '17

15 Mar '17

Hello, Registration is now open for the fifty-seventh meeting, which will be an evening workshop, providing a hands-on introduction to NetBSD on embedded platforms. Cheers, Andrew // OSHUG #57 — Getting started with NetBSD on embedded platforms On the 20 April 2017, 17:30 - 20:00 at BCS London, 1st Floor, The Davidson Building, 5 Southampton Street, London, WC2E 7HA. Registration: http://oshug.org/event/57 — Workshop scope You're hired at the latest startup as a hardware engineer and required to build the firmware which will run on "The Greatest Next Generation Appliance" (GNA). The GNA boots, prints a message and interacts with a device (in this case an LED). In this workshop we cover how a person with an interest and a focus on hardware can make progress with the software side by using the NetBSD operating system and the features it offers to save considerable time and effort. * NetBSD supports a wide & diverse range of systems & CPU architectures. * Support for cross compilation is offered by default and works out of the box. * There is a high level language interface to interact with the system internals. * File integrity verification support to detect tampering of binaries and preventing execution is builtin. * An instance of the kernel can be run as a user process on different operating systems where rapid development can take place. Things we will cover: 1. An introduction to cross-compilation with build.sh and constructing an image to boot on your hardware. 2. Interacting with the system using Lua (which is embedded in the kernel, avoiding having to write C or have knowledge of OS internals) to e.g. access GPIO. 3. Preventing the execution of tampered or unauthorised binaries with veriexec. 4. Using rump kernel for rapid development away from a potentially slow dev board. ** Note: Due to budgeting cuts, "The Greatest Next Generation Appliance" has not yet been purchased, so, the workshop will target the development of the firmware on a Raspberry Pi or BeagleBone Black.** — Participant requirements You will need to bring: * Your own laptop (running Windows, Linux or Mac OS X); * A Raspberry Pi or BeagleBone Black; * An appropriate SD card for your board; * USB card reader to write a new OS image onto said SD card; * An ethernet cable to connect board to laptop and/or a USB UART/FTDI adapter to access the board via the serial console. — Hosted by Sevan Janiyan is founder of Venture 37, which provides system administration & consultancy services. As a fan of operating systems and computers with different CPU architectures, in his spare time he maintains builds of open source software on a variety of systems featuring PowerPC, SPARC and armv7l CPUs. He hopes to own a NeXTcube & OMRON LUNA-88K2 one day. Note: Please aim to arrive by 17:15 as the workshop will start at 17:30 prompt. -- Andrew Back http://abopen.com

1 0

Looking for freelance PCB designer
by Neil Thomson 09 Mar '17

09 Mar '17

Job opportunity for freelance electrical engineer / PCB designer It's The Flash Pac <http://www.itstheflashpack.com/>k are an award winning photo experience agency, specialising in creating fun, interactive photography based experiences at live events. We are known for our innovative approach to briefs, our ability to create striking branded content, and our expertise in delivering amplification of content pre, during, and post event. We are in need of a electrical engineer to spec and design a small PCB for the Raspberry Pi 2, in effect a Raspberry Pi ‘HAT’. The applicant must be able to show recent examples of PCBs designed through to fabrication in Eagle CAD or similar for a commercial client, a thorough understanding of the Raspberry Pi 2 B+ is of benefit. We have a technical requirements document and have sourced some components but consultation is required to fully scope the work, to check that our desired specifications are fully feasible and the components are sufficient to fulfil the requirements. For those interested please email me at (neil(a)itstheflashpack.com) with CV / portfolio. Thanks!

1 0

← Newer
1
...
6
7
8
9
10
11
12
...
43
Older →

Jump to page:

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

oshug