#rtos — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #rtos, aggregated by home.social.
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#qnx est- il encore développé / utilisé / pertinent ?
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#qnx est- il encore développé / utilisé / pertinent ?
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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.htmlOr, 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-c3These 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.
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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.“
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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.“
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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.“
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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.“
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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.“
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🎉 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 -
🎉 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
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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
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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
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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
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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/ -
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/ -
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/ -
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/ -
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/ -
Nuvoton NuMicro M3331 Cortex-M33 MCU features built-in ARGB LED controller, optional USB 2.0 OTG interface
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Microchip SAM9X75 Hybrid automotive MCU – Surprisingly ARM9 is still a thing in 2026
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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
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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
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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
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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
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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
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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
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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
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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
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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
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Grinn ReneSOM-V2H is a tiny LGA SoM based on Renesas RZ/V2H processor for vision AI applications
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Ariel OS – A Rust RTOS for IoT microcontrollers
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Ariel OS – A Rust RTOS for IoT microcontrollers
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Ariel OS – A Rust RTOS for IoT microcontrollers
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Ariel OS – A Rust RTOS for IoT microcontrollers
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Ariel OS – A Rust RTOS for IoT microcontrollers
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Espressif Launches Industry’s First MCU-Based Matter Camera Solution
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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
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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 neededThis prevents A53/M7 resource conflicts and ensures real-time reliability.
https://www.forlinx.net/industrial-news/imx8mp-m7-gpio-release-linux-pinmux-769.html -
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
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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
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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
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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
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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
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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
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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
