#rtos — Public Fediverse posts

More AI news from AMD, re-use of the better parts of their Strix Halo yield for industrial use cases.

https://www.servethehome.com/amds-physical-ai-plans-come-into-focus-as-company-launches-ryzen-embedded-ai-x100/

"Physical AI" aka robotics and edge use cases. Buzzword galore! 😆
Still remember when "edge" was the new buzzword Pepperidge Farm Remembers

Something I do find interesting is the claim of hard real-time assurances whilst virtualized with Xen.

Technically a guaranteed deadline of 2 years is hard real-time too, just as MS-DOS is an amazing real-time OS, but I'm sure that's not what they're talking about...

Any one got more info on the Xen claim? Haven't heard so much about them these days...

#amd #strixhalo #ai #EmbedddedSystems #PhysicalAI #edgecomputing #robotics #xen #virtualization #realtime #rtos #msdos

Atari XT!

https://retropolis.com.br/2026/07/28/atari-xt/

#MundoRetro #AtariSt #AtariXE #AtariXL #AtariXT #fpga #GEM #InterfaceGrfica #RTOS #SistemaOperacional

Atari XT!

https://retropolis.com.br/2026/07/28/atari-xt/

#MundoRetro #AtariSt #AtariXE #AtariXL #AtariXT #fpga #GEM #InterfaceGrfica #RTOS #SistemaOperacional

Оценка скорости реакции RTOS на события

продолжение темы RTOS, начало см. https://habr.com/ru/posts/1060466/ https://habr.com/p/1062346/ Получив результат, а именно, запуск SMP версии RTOS, задался вопросом, а какая же плата в виде ухудшения временнЫх характеристик взимается за межъядерное взаимодействие сервисов RTOS? Достал из пыльного чулана давно написанный тест производительнсти сервисов RTOS и причесал с целью использования в одно- и много-ядерном режиме.

https://habr.com/ru/articles/1063284/

#rtos #baremetal #multicore

The drag scrolling broke with the last tweaks to the touch detection, and I'm not sure how much the touch detection lag is from problems with the IC or from the refresh rates or what, so that's being investigated as well.
This is working because I'm standing on the shoulders of giants that did the work for #tactility and #RTOS already, and next up is going to be porting some of their radio work so that #meshtastic can come to the #TDeckMax

[Перевод] Ghidra для реверса прошивок: практический гайд по восстановлению логики бинарника

В прошивках редко есть удобные символы и понятная точка входа, зато почти всегда остаются следы: строки, таблицы адресов, магические значения, обработчики прерываний и вызовы RTOS. Разбираем, как использовать эти зацепки в Ghidra, чтобы постепенно превратить сырой бинарник в осмысленную карту функций, данных и связей между ними. Понять Ghidra

https://habr.com/ru/companies/otus/articles/1051478/

#реверсинжиниринг #Ghidra #прошивки #анализ_бинарников #FreeRTOS #RTOS #декомпиляция #ассемблер #BSim

К каким социальным проблемам приводит неправильная последовательность глав в учебнике по программированию

Сегодня видел план вводного курса, написанный начинающей американской преподавательницей. План иллюстрирует распостраненную ошибку - неправильный порядок подачи материала:

https://habr.com/ru/articles/1042868/

#RTOS #прерывания #riscv #arm #MMIO #tlb #виртуальная_память #образование #интервью #учебники

Zephyr RTOS 〜 debug with VSCode 〜
https://qiita.com/Corgeek/items/0ac73e5eb7d773193219?utm_campaign=popular_items&utm_medium=feed&utm_source=popular_items

#qiita #開発環境 #debug #VSCode #RTOS #Zephyr

#qnx est- il encore développé / utilisé / pertinent ?

#alternativeos #rtos

Those who learned #computing in the 1970s and 1980s—from the signal-level up, on trainers like KIM-1 or Heathkit ET-3400—often get the urge to stroll down Memory Lane, the full 256-byte length of it. They need not spend thousands of dollars on eBay to purchase a beaten, broken, fifty-year-old trainer; they could just grab the wonderful Black Pill #STM32 F411 Cortex board on #AliExpress for $0.99.
https://shorturl.at/mfFxd
https://www.st.com/en/microcontrollers-microprocessors/stm32f411.html

Or, try the fabulous #ESP32 C3 RISV-V board, with an OLED display, WiFi, and BLE for the same amount of money.
https://shorturl.at/BHZ7r
https://www.espressif.com/en/products/socs/esp32-c3

These thumb-sized #MCU boards are more capable than the 1980s room-sized super-minicomputers. The F411, for example, has a 32-bit 100 MHz Cortex-M4F with FPU, 256 KB SRAM, and 512 KB Flash.

These boards can be programmed in assembly or the usual assortment of open-source, higher-level #programming languages, like Forth, C, C++, Go, Rust, Zig, Ada, etc., and even Processing, Python, and JavaScript.

A good selection of open-source #RTOS are available, too: FreeRTOS, Zephyr, ChibiOS, and the like.

Go ahead; by a bucket load of MCU boards from AliExpress, relive those happier simpler times, and simultaneously buck the stupid #tariffs.

Those who learned #computing in the 1970s and 1980s—from the signal-level up, on trainers like KIM-1 or Heathkit ET-3400—often get the urge to stroll down Memory Lane, the full 256-byte length of it. They need not spend thousands of dollars on eBay to purchase a beaten, broken, fifty-year-old trainer; they could just grab the wonderful Black Pill #STM32 F411 Cortex board on #AliExpress for $0.99.
https://shorturl.at/mfFxd
https://www.st.com/en/microcontrollers-microprocessors/stm32f411.html

Or, try the fabulous #ESP32 C3 RISV-V board, with an OLED display, WiFi, and BLE for the same amount of money.
https://shorturl.at/BHZ7r
https://www.espressif.com/en/products/socs/esp32-c3

These thumb-sized #MCU boards are more capable than the 1980s room-sized super-minicomputers. The F411, for example, has a 32-bit 100 MHz Cortex-M4F with FPU, 256 KB SRAM, and 512 KB Flash.

These boards can be programmed in assembly or the usual assortment of open-source, higher-level #programming languages, like Forth, C, C++, Go, Rust, Zig, Ada, etc., and even Processing, Python, and JavaScript.

A good selection of open-source #RTOS are available, too: FreeRTOS, Zephyr, ChibiOS, and the like.

Go ahead; by a bucket load of MCU boards from AliExpress, relive those happier simpler times, and simultaneously buck the stupid #tariffs.

Zepyhr RTOS (MCU OS) has support for WireGuard VPN now 🔒

„The networking stack also gains support for WireGuard VPN, enabling secure, low-overhead tunneling directly on your Zephyr devices. WireGuard is known for its simplicity, speed, and strong cryptography, making it an ideal fit for resource-constrained embedded devices that need secure remote management or encrypted data transport.“

@zephyr

https://www.zephyrproject.org/zephyr-rtos-4-4-now-available-wireguard-wi-fi-direct-openrisc-and-more/

#zephyrrtos #mcu #rtos

Zepyhr RTOS (MCU OS) has support for WireGuard VPN now 🔒

„The networking stack also gains support for WireGuard VPN, enabling secure, low-overhead tunneling directly on your Zephyr devices. WireGuard is known for its simplicity, speed, and strong cryptography, making it an ideal fit for resource-constrained embedded devices that need secure remote management or encrypted data transport.“

@zephyr

https://www.zephyrproject.org/zephyr-rtos-4-4-now-available-wireguard-wi-fi-direct-openrisc-and-more/

#zephyrrtos #mcu #rtos

🎉 Behold, the minimalist miracle of TinyOS: an #RTOS so tiny, it fits neatly inside a single #GitHub repo! 🎩✨ Witness the #audacity of #developers who dare to manage code with less complexity than your average IKEA manual. 🤔🔧
https://github.com/cmc-labo/tinyos-rtos #TinyOS #Minimalism #HackerNews #ngated

🎉 Behold, the minimalist miracle of TinyOS: an #RTOS so tiny, it fits neatly inside a single #GitHub repo! 🎩✨ Witness the #audacity of #developers who dare to manage code with less complexity than your average IKEA manual. 🤔🔧
https://github.com/cmc-labo/tinyos-rtos #TinyOS #Minimalism #HackerNews #ngated

TinyOS – A minimalist RTOS for Cortex-M written in C

https://github.com/cmc-labo/tinyos-rtos

#HackerNews #TinyOS #Minimalist #RTOS #CortexM #C #Programming #EmbeddedSystems

TinyOS – A minimalist RTOS for Cortex-M written in C

https://github.com/cmc-labo/tinyos-rtos

#HackerNews #TinyOS #Minimalist #RTOS #CortexM #C #Programming #EmbeddedSystems

Part 2 of our blog post series about our work on the Zephyr Demo has just been published:
https://rcn.pages.igalia.com/blog/posts/20260330-why_dont_we_do_a_demo_part_2/

If you missed Part 1, check out Ricardo Cañuelo’s page:
https://rcn.pages.igalia.com/blog/

#Zephyr #OpenSource #RTOS #IoT

Part 2 of our blog post series about our work on the Zephyr Demo has just been published:
https://rcn.pages.igalia.com/blog/posts/20260330-why_dont_we_do_a_demo_part_2/

If you missed Part 1, check out Ricardo Cañuelo’s page:
https://rcn.pages.igalia.com/blog/

#Zephyr #OpenSource #RTOS #IoT

Buena, terminé de armar una versión funcional del espotipad con un circuito y un configurador decentes.

Este es un proyecto uqe va a pertenecer a una seria de proyectos que se llama #ProyectosDeSoberaniaDigital.

Proyectos que incentivan y expresan soberanía digital, que buscan recuperar y fomentar tu capacidad de tener cosas. Si mañana se cae Google, Meta y Github ¿Cuanto sobrevivirias? Si mañana no tenes celular ¿Cuan complicadx te encontras?

Si usas 2FA, no tenes por qué temer, con este sistema operativo cutre y unas chatarras que te compras por ebay o mercadolibre podes construir un Generador de códigos 2FA completamente funcional (RFC 4648 HMAC TOTP)

Version: 1.0 Ignotus
Version del driver SSD1306: 0.2

https://git.disroot.org/linux0/lzespotipad

#linux #embedded #system #rtos #esp8266 #esp32 #2fa #development #diy

Полезные утилиты RTT Viewer и System Viewer

Хорошие инструменты для отладки встраиваемого ПО микроконтроллеров давно стали делом привычным. Возможности таких инструментов определяются как архитектурой ядра, так и выбором отладчика. Рассмотрим три понятия: DAP (Debug access port), ITM (Instrumentation Trace Macrocell) и RTT (Real-Time Transfer). Всё это «механизмы» позволяющие выводить отладочную информацию в том или ином виде. DAP – это аппаратный блок, который дает доступ к шинам и ядру микроконтроллера. ITM – это специальный блок внутри Cortex-M (начиная с M3 и выше), предназначенный для сообщений с минимальными потерями времени. RTT – технология компании SEGGER, построенная на использовании кольцевого буфера внутри RAM. Именно о ней и пойдет речь в публикации.

https://habr.com/ru/articles/1011650/

#RTT_Viewer #System_Viewer #rtos #программирование_микроконтроллеров #printf

Da ich mich gerade ein wenig mit Digitaler Signalverarbeitung beschäftige, suche ich ein #RTOS, mit dem ich harte Realtime Tasks laufen lassen kann. Dabei bin ich über #RTIC gestolpert und habe es gerade mal auf einem STM32H7A3 zum Laufen gebracht. Die Tage werde ich es mal weiter testen und schauen, ob ich darauf aufsetzen werde. #rust #rustlang

Da ich mich gerade ein wenig mit Digitaler Signalverarbeitung beschäftige, suche ich ein #RTOS, mit dem ich harte Realtime Tasks laufen lassen kann. Dabei bin ich über #RTIC gestolpert und habe es gerade mal auf einem STM32H7A3 zum Laufen gebracht. Die Tage werde ich es mal weiter testen und schauen, ob ich darauf aufsetzen werde. #rust #rustlang

The article Design of Prototyping Control Unit for BLDC/PMSM Drives and Piezoelectric Actuators documenting our work on #NuttX #RTOS and #pysimCoder has been published. It documents SaMoCon Open HW and SW motion control platform as well.

We have submitted another related presentation to the Apache Community Over Code 2026 in Glasgow, from October 10 to 15. The NuttX call for presentations is still open for this event.

We hope to be available on Open Source Summit Europe in Prague in October, if the price bar/access rules allow that to our students and us, and we will be available (for sure) at #LinuxDays in Prague, which is (in a contrast) a really freely accessible community organized event in Prague with long history, and this year exactly before @linuxplumbersconf and Open Source Summit Europe

The article Design of Prototyping Control Unit for BLDC/PMSM Drives and Piezoelectric Actuators documenting our work on #NuttX #RTOS and #pysimCoder has been published. It documents SaMoCon Open HW and SW motion control platform as well.

We have submitted another related presentation to the Apache Community Over Code 2026 in Glasgow, from October 10 to 15. The NuttX call for presentations is still open for this event.

We hope to be available on Open Source Summit Europe in Prague in October, if the price bar/access rules allow that to our students and us, and we will be available (for sure) at #LinuxDays in Prague, which is (in a contrast) a really freely accessible community organized event in Prague with long history, and this year exactly before @linuxplumbersconf and Open Source Summit Europe

Ariel OS – A Rust RTOS for IoT microcontrollers

https://web.brid.gy/r/https://www.cnx-software.com/2026/01/28/ariel-os-a-rust-rtos-for-iot-microcontrollers/

Ariel OS – A Rust RTOS for IoT microcontrollers

https://web.brid.gy/r/https://www.cnx-software.com/2026/01/28/ariel-os-a-rust-rtos-for-iot-microcontrollers/

Espressif Launches Industry’s First MCU-Based Matter Camera Solution

https://fed.brid.gy/r/https://linuxgizmos.com/espressif-launches-industrys-first-mcu-based-matter-camera-solution/

VxWorks – the Wind River’s VxWorks and Tornado real-time OS (RTOS), microkernel based, POSIX and ANSI C language compliant. VxWorks is a real-time operating system (RTOS) developed and marketed by the American company Wind River Systems https://archiveos.org/vxworks/ #operatingsystem #rtos

VxWorks – the Wind River’s VxWorks and Tornado real-time OS (RTOS), microkernel based, POSIX and ANSI C language compliant. VxWorks is a real-time operating system (RTOS) developed and marketed by the American company Wind River Systems https://archiveos.org/vxworks/ #operatingsystem #rtos

On i.MX8MP, GPIOs are owned by Linux (A53) by default.
If the Cortex-M7 needs them—especially for interrupts—you must release them in the device tree:

• Remove pinmux
• Remove GPIO references
• Disable the GPIO controller if needed

This prevents A53/M7 resource conflicts and ensures real-time reliability.
https://www.forlinx.net/industrial-news/imx8mp-m7-gpio-release-linux-pinmux-769.html

#iMX8MP #CortexM7 #EmbeddedLinux #GPIO #RTOS

Update after longer run (~10M cycles): max jitter reached 55 µs 👌🏻

Plugging in AC power caused a localized spike on a single RT thread (51 µs), while others stayed stable.
Classic ACPI / power-state event: bounded, localized, fully recoverable.

Determinism preserved under real hardware events 👊🏻

#linux #realtime #rtos #buildroot #PREEMPTRT #latency #cyclictest #determinism

Update after longer run (~10M cycles): max jitter reached 55 µs 👌🏻

Plugging in AC power caused a localized spike on a single RT thread (51 µs), while others stayed stable.
Classic ACPI / power-state event: bounded, localized, fully recoverable.

Determinism preserved under real hardware events 👊🏻

#linux #realtime #rtos #buildroot #PREEMPTRT #latency #cyclictest #determinism

Built a custom RTOS with Buildroot + Linux 6.12 RT. Tested on an old Celeron dual‑core over SSH, Wi‑Fi on, and stress‑ng running.

Max jitter: 39 µs (!)

Same hardware, same kernel on Debian 13 RT in “clean lab” conditions… also 39 µs.

Real‑world vs lab, same result. Buildroot wins in determinism 🏆

#linux #realtime #rtos #buildroot #PREEMPTRT #benchmark #latency

Built a custom RTOS with Buildroot + Linux 6.12 RT. Tested on an old Celeron dual‑core over SSH, Wi‑Fi on, and stress‑ng running.

Max jitter: 39 µs (!)

Same hardware, same kernel on Debian 13 RT in “clean lab” conditions… also 39 µs.

Real‑world vs lab, same result. Buildroot wins in determinism 🏆

#linux #realtime #rtos #buildroot #PREEMPTRT #benchmark #latency

Spending my Xmas holidays in the best way possible: deep diving into my custom BuildLab! 🛠️🐧

Running Debian 13 (via live-build) on one USB stick, compiling Buildroot projects onto another. 4 days of uptime and it’s smooth as silk.

Currently practicing with RTOS for x86 and Real-Time Linux (PREEMPT_RT) for Raspberry Pi. There’s nothing like the smell of fresh cross-compiled firmware in the morning! ☕

#Linux #Buildroot #EmbeddedSystems #Debian #RTOS #RaspberryPi #SelfHosted

Spending my Xmas holidays in the best way possible: deep diving into my custom BuildLab! 🛠️🐧

Running Debian 13 (via live-build) on one USB stick, compiling Buildroot projects onto another. 4 days of uptime and it’s smooth as silk.

Currently practicing with RTOS for x86 and Real-Time Linux (PREEMPT_RT) for Raspberry Pi. There’s nothing like the smell of fresh cross-compiled firmware in the morning! ☕

#Linux #Buildroot #EmbeddedSystems #Debian #RTOS #RaspberryPi #SelfHosted

Just built a custom x86 Real-Time OS with #Buildroot! 🚀

Boasts a blazing-fast 2-second boot on QEMU, now ready for bare metal. This #RTOS is super lean on RAM & CPU, perfect for embedded & low-latency apps.

Thrilled with the #LinuxRT kernel (6.12.57-rt14)! Check out the screenshots for proof.

What a journey!

#EmbeddedLinux #RealTimeLinux

Just built a custom x86 Real-Time OS with #Buildroot! 🚀

Boasts a blazing-fast 2-second boot on QEMU, now ready for bare metal. This #RTOS is super lean on RAM & CPU, perfect for embedded & low-latency apps.

Thrilled with the #LinuxRT kernel (6.12.57-rt14)! Check out the screenshots for proof.

What a journey!

#EmbeddedLinux #RealTimeLinux

Pech или pyRTOS: вот почему «печка» лучше чем «аналог FreeRTOS»

Pech — это Managed Kernel которая следует концептам Mach 3.0 . В 2025 году безопасность важнее ручного управления тактами. Я использую высокоуровневый рантайм для создания математически безопасной среды , где баги памяти устранены на уровне архитектуры. Это то, к чему сейчас стремятся проекты вроде Microsoft Singularity или современные ОС на Rust. В этой статье я попытаюсь как можно больше перечислить ошибок pyRTOS которые были исправлены в Pech.

https://habr.com/ru/articles/978848/

#os #diy #diy_os #diy_kernel #kernel #pyrtos #rtos #raspberry_pi_pico #micropython #pech

Hands-On #RTOS with Microcontrollers (1 ed)
https://ebokify.com/hands-on-rtos-with-microcontrollers-1-ed

#Robotics #Robot #Robotic

VICTORY! 🏁 After a long battle with kernel patches and expert modes, the BashLab has officially spawned a #RealTimeLinux system! 🐧⚙️

Running Linux 6.1.158-rt58 on #QEMU via #Buildroot. From 'urban legend' to PREEMPT_RT reality. Never underestimate the power of a clean Ext4 partition and the Expert Mode! 🤓🎒 #EmbeddedLinux #LinuxKernel #RTOS #OpenSource #Hacking

My journey to a #RealTimeLinux kernel for #AMD64 on Buildroot continues!

Many failed experiments with different kernel/RT patch combos (6.18, 6.12, 6.1), but learning a ton about patching & Buildroot quirks. Still stuck on enabling CONFIG_PREEMPT_RT, but feeling closer to the breakthrough!

My portable #BashLab is ready for more. 🤓

#EmbeddedLinux #Buildroot #RTOS #LinuxKernel #DIY #PortableLab