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

#Mapycz (now #Mapycom) from #Seznam use #OpenStreetMap everywhere except their home country - Czech Republic, where they have their own proprietary maps.
There have been rumours in the #OSM community that they actually copy from OSM. Today I found proof that they really do.
I mapped a new park in #Brno just by surveying and taking notes last year. Later the park showed up on Mapy.com with exactly the same path layout. The new orthophoto is out and it revealed that I didn't get everything right and Seznam got it wrong too. Exactly the same mistakes.

Not cool, Seznam.

Congratulations to Gints Zilbalodis and the entire Flow film crew for the Academy Award win!

Flow is the manifestation of Blender’s mission, where a small independent team is able to create a story that moves audiences worldwide.

Thank you for the shout out! 🧡 #b3d

Our RTEMS CAN API with CAN FD and priority class queues (result of Michal Lenc’s thesis) has been accepted into RTEMS.org mainline. The related article Scheduling of CAN Frame Transmission when Multiple FIFOs with Assigned Priorities Are Used in RTOS Drivers was presented at International CAN Conference 2024. The maximal gateway latency under load with CTU CAN FD IP core on Zynq (MZ_APO) is under 65 µsec. Development of two more controller drivers is under development and we hope to find some GSoC participants to support even more hardware as well. #canbus #realtime

@jakub recording of the Ukrainian national anthem today on Old Town Square in #Prague related to the third anniversary of the Russian war of conquest #UnitedForUkraine

“It is impossible to compromise international law and reward the aggressor.” from the speech of Petr Pavel, the president of the Czech Republic source iRozhlas.cz

RE: https://social.jirutka.cz/@jakub/114055067500446728

Wikipedia is rolling out anonymity features piloted in countries with authoritarian governments in the US & is making a change to not show editor IP addresses in response to a global "increase in threats" from Elon Musk, Heritage Foundation, and governments

https://www.404media.co/wikipedia-prepares-for-increase-in-threats-to-us-editors-from-musk-and-his-allies/

I will talk about #realtime Linux kernel support, applications and history at #FOSDEM 2025 based on our experience at #CVUTFEL and my company for robotics, automotive communication ( #CANbus ), etc. The talk is based on my last year Czech language talk for the local community (Slides in English) reporting about PREEMPT_RT mainlining. Discussion and suggestions for slide fixes/extensions are welcomed as my talk has been accepted as no other better has been offered by more knowledgeable developers.

As it turns out, Volkswagen has been collecting extensive geo data from all their electric cars and made them available online in an AWS bucket. Almost 10TB of geo traces from 15 MiO cars. Amazing detail and patterns. This is why I don't want a smart car 🤯 https://events.ccc.de/congress/2024/hub/en/event/wir-wissen-wo-dein-auto-steht-volksdaten-von-volkswagen/ #Volksdaten