Tag Archives: Atomthreads

STM8 RTOS for IAR Embedded Workbench

by Kelvin Posted on May 28, 2010

This week Atomthreads became the first RTOS to support Embedded Workbench (EWSTM8), the STM8 compiler launched by IAR last month. EWSTM8 provides a full professional-grade development and debug environment with support for hardware debuggers including the low cost STM8S Discovery platform. IAR offer a 30-day evaluation of the full version, as well as a time-unlimited 8KB “Kickstart” edition (with a few non-core features disabled).… Continue reading

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Atomthreads: Free RTOS for STM8

by Kelvin Posted on February 20, 2010

I have just completed a port of the Atomthreads RTOS to the STM8 microcontroller. Anyone interested in running an RTOS on the STM8 can download the source code from http://atomthreads.com.

This has to be one of the easiest architectures I’ve ever ported an RTOS to. There are only six CPU registers and only three of these are general purpose registers for compiler use. Continue reading

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Atomthreads: Open Source RTOS

by Kelvin Posted on January 20, 2010

Last week I released Atomthreads, a free RTOS for embedded systems. This project grew from a task scheduler I created some time ago and subsequently extended with semaphore, mutex, queue and timer modules. The result was a lightweight and portable set of kernel sources which can be dropped in to any embedded systems project to add a thread scheduler. It has been useful to me so I decided to open source it in case it proves useful to anyone else. Continue reading

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