What is it?
"MiROS" is a Minimal Real-Time Operating System (RTOS) kernel for ARM Cortex-M. It supports preemptive, priortity-based multithreading, fully compliant with RMA/RMS (Rate-Monotonic Analysis/Scheduling). It is currently written for ARM/KEIL MDK (uVision), but can easily be ported to other toolchains as well.
MiROS is a teaching aid used in the "Modern Embedded Programming" video course on YouTube:
https://www.youtube.com/playlist?list=PLPW8O6W-1chyrd_Msnn4LD6LBs2slJITs
The main goal of the MiROS kernel is to illustrate the concepts underlying Real-Time Operating Systems (RTOS). The aim here is simplicity and clear presentation of the concepts, but without dealing with various corner cases, portability, or error handling. For these reasons, the software is generally NOT intended or recommended for use in commercial\applications.
Directories and Files
FreeAct/
+-3rd_party/ - third-party software (needed in the examples)
| +-CMSIS/ - ARM CMSIS
| +-ek-tm4c123gxl/ - low-level code to support the EK-TM4C123GX board
|
+-examples/
| +-blinky-tm4c/ - Blinky exammple for the EK-TM4C123GX board
|
+-inc/ - include directory
| +-MiROS.h - MiROS interface
+-src/ - source directory
| +-MiROS.c - MiROS implementation
Licensing
MiROS is licensed under the GPLv3 open source license.
Comments/Discussion
If you'd like to discuss MiROS or related subjects, plese use the "Issues" tab.