Chapter 20

Programming with Embedded OS

Abstract

This chapter introduces the basic concepts of embedded OS, CMSIS-RTOS, and an introduction of the Keil® RTX, which is an embedded OS based on CMSIS-RTOS. This is followed by various examples that illustrate how to use CMSIS-RTOS APIs with Keil RTX, and how to debug applications that use Keil RTX.

Keywords

CMSIS-RTOS API; Debug and trouble shooting; Embedded OS and Real-time OS in microcontrollers; Keil® RTX OS kernel; Memory pool; Message queue and mail queue; OS event; OS timer and delay; RTX configurations; Semaphores and MUTEX

20.1. Introduction

20.1.1. Background

In Chapter 10 we covered the hardware features in the Cortex®-M0 and Cortex-M0+ processors related to OS operations:
• Banked stack pointers ...

Get The Definitive Guide to ARM® Cortex®-M0 and Cortex-M0+ Processors, 2nd Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial