FreeRTOS-Kernel
FreeRTOS kernel files only, submoduled into https://github.com/FreeRTOS/FreeRTOS and various other repos. (by FreeRTOS)
mbed-os
Arm Mbed OS is a platform operating system designed for the internet of things (by ARMmbed)
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| FreeRTOS-Kernel | mbed-os | |
|---|---|---|
| 12 | 7 | |
| 2,312 | 4,574 | |
| 4.9% | 1.0% | |
| 9.4 | 8.1 | |
| 1 day ago | 6 days ago | |
| C | C | |
| MIT License | GNU General Public License v3.0 or later |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
FreeRTOS-Kernel
Posts with mentions or reviews of FreeRTOS-Kernel.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-06-29.
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what do people usually do to separate/abstract platform dependent codes/files
Here is the port - https://github.com/FreeRTOS/FreeRTOS-Kernel/tree/main/portable/ThirdParty/GCC/Posix
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TI CC2630: Having trouble deciding Contiki vs TI-RTOS
Freertos has support for generic cortex m3: https://github.com/FreeRTOS/FreeRTOS-Kernel/tree/main/portable/GCC/ARM_CM3 It could very well work almost out of the box with your mcu.
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Ted Ts'o: "As an OS engineer, I deeply despise these optimization tricks, since I personally I care about correctness and not corrupting user data far more than I care about execution speed"
the only OS written in iso c i found was RTOS and they have open bug reports due to strict aliasing in simple things like their linked list implementation, which they don't bother to fix because somehow that causes even more problems (?!): https://github.com/FreeRTOS/FreeRTOS-Kernel/pull/54
- HELP
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Arduino or full featured RTOS?
You likely put the requirements of POSIX just to have an excuse. Fyi, FreeRTOS kernel, the only thing you need, is here: https://github.com/FreeRTOS/FreeRTOS-Kernel/
- Ask HN: Examples of Microkernels?
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Ask HN: Embedded Projects to Learn From?
- https://github.com/FreeRTOS/FreeRTOS-Kernel (architecture, C)
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Nutshell custom memory allocators for me
FreeRTOS comes with 5 quite simple reference implementations of the heap memory allocator. You can study how it works.
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Using FreeRTOS and dual core RP2040
The main branch is single-core. You're looking for the SMP branch.
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C programmers scare me
On non-POSIX systems, malloc & free are implemented differently. EG FreeRTOS has some very simple malloc (and optionally free) implementations, eg heap_2.c (has malloc & free, but doesn't consolidate blocks), or heap_4.c (more complex, tries to prevent fragmentation by consolidating blocks, still less optmized & simpler than the glibc malloc/free used by most Linux systems).
mbed-os
Posts with mentions or reviews of mbed-os.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-01-04.
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Any ideas on programming this devboard?
I see that the kl05 target was removed in os6 but it is present in os5.
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Simpler Control Systems for hobby robotics?
It looks like both mbed: https://github.com/ARMmbed/mbed-os/pull/14488
- Do you know any C++ open source firmware projects for a device, RTOS or no-OS based?
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How to find an open source project to contribute ?
View various projects on github in the area of your choice. Select a project you like and look into open issues. For eg https://github.com/ARMmbed/mbed-os seems to have 166 issues ongoing. Choose one!
- Learn Effective C++ for Embedded Code
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Arduino 32u4 sending 2 separate serials via USB
Most of my interaction with mbed was when it a massive pita since it was still closed source.. I do have one interaction with the project since they opened it though
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CISA Advisory (ICSA-21-119-04) - CyberHoot
ARM Mbed OS – Update available
What are some alternatives?
When comparing FreeRTOS-Kernel and mbed-os you can also consider the following projects:
zephyr - Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
RIOT - RIOT - The friendly OS for IoT
mongoose-os - Mongoose OS - an IoT Firmware Development Framework. Supported microcontrollers: ESP32, ESP8266, CC3220, CC3200, STM32F4, STM32L4, STM32F7. Amazon AWS IoT, Microsoft Azure, Google IoT Core integrated. Code in C or JavaScript.
nuttx - Apache NuttX is a mature, real-time embedded operating system (RTOS)
TizenRT - TizenRT is a lightweight RTOS-based platform to support low-end IoT devices
ODrive - High performance motor control
HID - Bring enhanced HID functions to your Arduino!