#NuttX Support for IEEE 802.3-2022 10BASE-T1S/L #Ethernet using Open Aliance SPI MAC-PHYs implemented by Michal Matias from #CVUT in frame of #GSoC2025 has been fully merged into NuttX mainline. The common part resides at drivers/net/oa_tc6. #ESP32C6 mapping and mapping for SAVM71-Xplained Ultra are good examples for straightforward extension to other MCU and board NuttX SPI interfaces. The accompanying plcatool for Physical Layer Collision Avoidance parameters configuration matching OA-TC14 specification is another contribution.

🇩🇪Auch dank eures Engagements werden Belgien, Finnland und Tschechien der #Chatkontrolle im Oktober nicht zustimmen! Die Bundesregierung ist aber immer noch unentschieden, ob sie Briefgeheimnis und sichere Verschlüsselung retten will. Werdet jetzt laut: https://www.patrick-breyer.de/beitraege/chatkontrolle/#WasTun

Sigh ... it seems that the Groklaw domain has fallen into the hands of people who ... are inconsistent with the history of this site. I guess it's time to replace all the links on LWN with wayback machine equivalents.

https://fossforce.com/2025/08/groklaw-domain-hijacked-site-now-serving-crypto-content/

In our latest guest blog post, Matt Young introduces an Automated Triple Modular Redundancy EDA Flow for Yosys!

https://blog.yosyshq.com/p/tamara-towards-a-triple-modular-redundancy-pass-for-yosys/

Hot take: for critical infra, all firmware running on devices operated by public entities should be compiled and audited by these public entities.

Vendors should be required to supply source code and assist in compilation, flashing and verification; but the operator should have the means to introspect and verify any part of such deliveries independently.

Then this entire mess of a Polish train manufacturer never could have gone off the rails.

Re: https://www.ifixit.com/News/112008/polish-train-maker-is-suing-the-hackers-who-exposed-its-anti-repair-tricks

#rightToRepair #newag

Hello 🌏 ! This is #phosh's new fediverse presence. It'll have phosh's release announcements and posts/boosts of related projects. Looking forward to an interesting and bright Linux mobile future 📱 .

ICYMI: the recording of @corbet's recent #OSSNA25 talk "Three Decades in Kernelland" recently became available:

https://www.youtube.com/watch?v=hNLBGiwfBSI

From the abstract[1]: The #Linux #kernel project has been going for well over 30 years. From its beginnings on floppy diskettes and beige boxes through to its current home in pockets and unseen data centers, the kernel project has been a constant exercise in rapid development and adaptation. I have been present for almost all of the kernel project's history as an observer, contributor, maintainer, and more; all that experience will be boiled down into a fast-moving tour of how the #LinuxKernel got to where it is, what makes it successful, and what may be coming next.

[1] https://ossna2025.sched.com/event/1zfit/three-decades-in-kernelland-jonathan-corbet-lwnnet

Summer 2025 #cvut defended theses by OTREES / “my” students:

• Matyáš Bobek, FlexCAN Controller Emulation for QEMU, #qemu #canbus (git), I hope for mainlining soon, my thanks to
  @marckleinebudde for review
• Albert Bezděk, Stereo Camera FPGA Interface and Processing for Zynq Based Systems, with initial rectification and disparity in #XilinX #Zynq #FPGA (git), thank to Martin Meloun for review
• Michal Matiáš, NuttX RTOS Driver for Single Unshielded Twisted Pair Communication, working with ncv7410 and ESP32-C6 for now (nuttx, apps git), continues by #GSoC expected to lead to broader OpenAlliance SPI Ethernet MAC-PHY T1S for mainline #NuttX support after summer, thanks to @cynerd for review

See the last OTREES theses list for link to repositories and more

Another related theses from #cvut Faculty of Information Technologies mentored by Michal Štepanovský to mention:

• Jan Medek, Implementation of RISC-V soft-core processor on FPGA board with real-time operating system support, port (git) of #NuttX to the own setup of Ibex #riscv to Digilent Basys 3 and Digilent Nexys Video, includes even #NuttX, #RTEMS, #Zephyr, #FreeRTOS and RT-Thread choice analysis, some minor clarifications in my review, out of the text documentation, the student ported NuttX even to the CPU system prepared in frame of the next thesis
• Ondřej Golasowski, RISC-V open-source microarchitecture analysis and optimization, the VESP-BETA single-cycle RV32IMZicsr #riscv design for basic #comparch education with #FPGA labs

Stay tuned next summer as well, there is student interested in thesis to add MMU to #QtRvSim

We have a new home for community discussion around Yosys!

https://yosyshq.discourse.group/

Join us there for questions, support and discussion about our open source EDA tools.

Kip Thorne‘s lecture Quantum Fluctuations in our Universe’s Warped Side presentation at Jiří Bičák Memorial Conference 2025 organized by Charles University Faculty of Mathematics and Physics and Czech Academy of Sciences recordings are available https://youtu.be/To-vVkHHyXk

The new book how to build #riscv processor for #comparch courses is on the horizon (ETA later H2 2025) RISC-V System-on-Chip Design by D. Harris, J. Stine, R. Thompson, S. Harris. It has been presented at the RISC-V International Academic and Training SIG meeting. The recording of the session is available on YouTube https://youtu.be/Qyq5nHUDt4g The related configurable RV32I to RV64IMAFDCB core and Wally SoC sources https://github.com/openhwgroup/cvw

📣 Liberux NEXX is now live on crowdfunding! 🚀

After months of development and testing, we're introducing the most powerful Linux smartphone: RK3588S, 32 GB RAM, 5G, Debian 13 + GNOME Mobile, and total privacy with hardware killswitches. 🎉

🔼 Now upgraded to 512 GB of storage and European-made.
Support mobile freedom and reserve your unit in the next 30 days:

🔗 https://igg.me/at/liberux-nexx

#LiberuxNEXX #linuxphones #privacy #opensource

Možná už tu někdo dával, ale @ppisa mě upozornil na #petici za open-source ve státní správě. Podpisů je tam pomálu a přitom petice je podle mě dobře formulovaná. Zvažte podpis. Děkuji, konec hlášení.
#gov #e-petice #opensource
https://portal.gov.cz/e-petice/1205-petice-za-povinne-zverejneni-zdrojovych-kodu-softwaru-pouzitych-ve-verejne-sprave

The #QEMU on the Linux host emulation of CAN/CAN FD bus for #nuttx presented in the article Host-Based Development with Apache NuttX – CAN Network Simulation by Mateusz Szafoni is using lot of the components from our #canbus list https://canbus.pages.fel.cvut.cz/. I have even prepared CTU CAN FD QEMU emulation variant for SoCs without PCI/PCIe bus on the branch net-can-ctucanfd-platform and my student, Matyáš Bobek has just finished his thesis adding iMX6 FlexCAN emulation into QEMU, code is available on the flexcan branch of his QEMU repository.

Potřebujeme svobodný software, abychom zůstali nezávislí, říká RMS https://www.root.cz/clanky/potrebujeme-svobodny-software-abychom-zustali-nezavisli-rika-rms/?utm_source=rss&utm_medium=text&utm_campaign=rss

Open-Source Chips for Europe
https://open-source-chips.eu/

"We already see rising interest from many EU stakeholders, with increasing investments into open-source chip design, especially in open source IP development (e.g. RISC-V cores), and open source EDA tools.

One additional critical barrier remains toward the end-goal of building real open-source chips, especially for prototyping and education: namely, streamlining the access to open source chip production facilities (foundries) is essential."

The B35APO Computer Architectures course based on #riscv and our #qtrvsim simulator reached new (re)usability level, updated slides in the LaTeX Beamer format for lecture 1 to 10 are translated to English, PDF, CC-BY-SA Slide Sources at #cvut FEE GitLab and on GitHub. The feedback, corrections, suggestion, reuse and cooperation are welcomed. The lectures recording are available on community driven PeerTube server https://vhsky.cz/w/p/8Ejstt3Tfh8mWGcjQcEL2S and CTU FEE B35APO YouTube List. The online site with links to more related courses and on-line QtRvSim WASM application https://comparch.edu.cvut.cz/ allows even online evaluation of simple #riscv assembly and C exercises.

If Europe is going to break from US-based tech will it embrace FOSS or just duplicate the US for-profit, capitalism-based model of computing?

https://kolektiva.media/w/cbb9f78a-9705-41f6-b7a3-e869e1a0e7f2

#Linux #FOSS