Mastodawn

Michal Lenc will present about his #CANbus subsystem integration into #RTEMS space grade system on #LinuxDays on on Sunday October 5 from 11:00 CEST. This time in the Czech language. See the entry. The article presented at International CAN Conference is there, RTEMS mainline documentation, more information at CTU FEE CAN projects site. Update: Recording (in Czech)

Návrh subsystému CAN FD sběrnice pro space grade real-time exekutivu RTEMS LinuxDays 2025

RTEMS je otevřený operační systém, který své využití nachází v kritických systémech reálné času, mezi které patří řídicí prvky v automobilech a hromadné dopravě, systémy pro družice, zdravotní zařízení nebo síťové prvky. Tyto aplikace často vyžadují deterministický přenos kritických zpráv mezi zařízeními, k čemuž se mimo jiné využívá sběrnicový standard Controller Area Network. Pro zjednodušení přístupu na CAN sběrnici implementují operační systémy obecné rozhraní mezi aplikacemi a ovladači řadičů. Přednáška představuje návrh a implementaci takového rozhraní do systému RTEMS s podporou prioritních front, blokujícího a neblokujícího přístupu, reportu chyb, rozhraní pro konfiguraci kontroléru a dalších funkcí. Mezi ty patří dynamická redistribuce hardware bufferů řadiče na prioritní fronty řešící problém inverze priorit během arbitrážní fáze na CAN sběrnici.

Pavel Pisa Oct 4

OTREES #cvut booth at #LinuxDays 2025 presenting our CAN/CAN FD projects for #Linux, #NuttX, #FPGA and #RTEMS. SaMoCon motion control platform driven by pysimCoder rapid prototyping solution for #NuttX with online monitoring and parameters tuning and update uploads through silicon-heaven and NXboot integrated in the frame of Štěpán Pressl’s #GSoC 2025 (will be presented in detail on NuttX Workshop October 16 and 17). More on the booth: #Espressif based kits running NuttX (ICE-V Wireless, see our PMSM project, #ESP32C6 with M-bot platform), AMD/Xilinx Zynq MZ_APO running Linux and #RTEMS, PolarFire SoC, Milk-V Pioneer 64 core 64-bit #RISCV system running #QtRvSim (for CompArch education), #CHROMuLAN data acquisition over uLAN driver, LX_RoCoN system used for ESA projects and lot more to see at our booth.

Hacker News Sep 2, 2025

Run Erlang/Elixir on Microcontrollers and Embedded Linux
https://www.grisp.org/software
#ycombinator #GRiSP_software_stacks #embedded_BEAM #Erlang_runtime #Elixir_runtime #real_time_systems #embedded_Linux #RTEMS #Buildroot #Yocto #bare_metal_programming #IoT_development #industrial_automation #deterministic_systems #embedded_cloud_platform #multi_core_Erlang #distributed_Erlang #soft_real_time

GRiSP Ecosystem by Stritzinger - Erlang & Elixir

A modular embedded ecosystem—bare-metal hardware, software stacks, and a cloud platform for real-time IoT and distributed systems.

GRiSP by Stritzinger

Pavel Pisa Jun 21, 2025

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

theses defend · Wiki · Open Technologies Research Education and Exchange Services / org · GitLab

Helper project to form and organize other projects. See the Wiki for more information.

GitLab

Show thread

Pavel Pisa Jun 21, 2025

@esden I am curious, what are your plans and what SW base do you intend to use? STCube, #NuttX, #Zephyr, #RTEMS or something else? May it be, there can be something in our portfolio to port or use as the example.

Hacker News Apr 27, 2025

Libogc (Wii homebrew library) discovered to contain code stolen from RTEMS

https://github.com/fail0verflow/hbc/blob/80a80251f83f1993c272c58e471d040f3eb1dee9/README.md

#HackerNews #Libogc #Wii #homebrew #RTEMS #code #theft #gaming #news #open #source

hbc/README.md at 80a80251f83f1993c272c58e471d040f3eb1dee9 · fail0verflow/hbc

The Homebrew Channel - open source edition. Contribute to fail0verflow/hbc development by creating an account on GitHub.

GitHub

ianto Sep 17, 2024

RTEMS on a Raspi - download as a boot image for plonking on an SD card instead of building the thing from scratch - seems to be too much to ask. I *really* would be happy for someone to ‹well, actually›, me or fix my thinking some other way.
#raspberrypi #rtems

지지 ᚠᚱᛖᛃᚨ Daniel 黄法官 CyReVolt May 14, 2024

Congrats #RTEMS on your move toward GitLab!

https://www.rtems.org/node/146

Now you just need to join the Fediverse.

RTEMS Transition to GitLab | RTEMS Real Time Operating System (RTOS)

Pavel Pisa May 11, 2024

We will present our new #canbus (CAN/CAN FD) stack for #RTEMS (https://www.rtems.org/) on #CiA_iCC https://old.can-cia.org/icc in Baden-Baden on Wednesday 15. The stack is based on our LinCAN Linux driver (initiated in 2003 as part of https://ortcan.sourceforge.net/ ). The new code source and documentation is available at https://gitlab.fel.cvut.cz/otrees/rtems/rtems-canfd . Our presentation "Scheduling of CAN frame transmission when multiple FIFOs with assigned priorities are used in RTOS drivers" is relevant even for future Linux #SocketCAN stack to solve its long standing link level priority inversion problem at least for some controllers when multi-queue support is implemented and our previous QoS work is updated. The measured latency results on #zynq on #RTEMS are great and in order better than maximal ones on PREEMP_RT Linux https://canbus.pages.fel.cvut.cz/#can-bus-channels-mutual-latency-testing . So there is lot to do on Linux side as well.

The RTEMS Project home

pafurijaz Dec 21, 2023

#RTEMS is another great #OpenSource projects, is #OS still used in many field but mostly in the aerospace. cool #GPL
https://en.wikipedia.org/wiki/RTEMS