![]() Core feature setįreeRTOS supports a few dozen microcontroller platforms, the most notable of which are probably AVR, x86, and ARM (Cortex-M & Cortex-A). In this article, we'll take a closer look at these two operating systems, to see what benefits they bring. ![]() Perhaps more precisely, FreeRTOS could be summed up as a multi-threading framework targeting low power systems, while ChibiOS is more of a full operating system, including a hardware abstraction layer (HAL) and other niceties. ![]() Something like ChibiOS ("Chibi" meaning "small" in Japanese), or FreeRTOS (here no points for originality). When you need to run an operating system on something like an 8-bit AVR or a 32-bit Cortex-M microcontroller, you need something smaller. However, few of these operating systems can run on a microcontroller (MCU). Some of them are adapted versions of desktop OS (for example Yocto Linux), while others are built from scratch for embedded applications, such as VxWorks and QNX. ![]() Similarly, embedded operating systems offer functionality similar to those of these desktop OS, while targeting a more specialized market. If operating systems weren't so useful, we wouldn't be running them on every one of our desktop systems. ![]()
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