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OS2 MQX Programming on Kinetis Microcontroller

Programming applications using the MQX operating system

formateur
Objectives
  • Becoming familiar with the NXP IDE, Kinetis SDK or CodeWarrior
  • Get an overview of Kinetis and Cortex-M4 core architecture
  • Revise the concepts of real time multitasking
  • Understand the MQX architecture
  • Discover the various MQX services and APIs
  • Learn how to develop MQX applications
  • Learn how to debug MQX applications
  • Learn how to use MQX Library (USB, TCP/IP, File System, Embedded GUI)
Course environment
  • Convenient course material with space for taking notes
  • Documentation, labs and solutions
  • A PC under Windows 7 for two trainees
  • A NXP Kinetis K70 or K60 (Cortex/M4) with SDK or CodeWarrior IDE
Prerequisites
  • Familiarity with embedded C concepts and programming
  • Basic knowledge of embedded processors

First day
Cortex-M4 Overview
  • Registers, Mode and Stacks
  • Exception Management
MQX at a Glance
  • MQX overview
  • Organization of MQX
  • MQX directory structure
    • RTOS directory
    • PSP, BSP, I/0 and others source subdirectories
  • Initializing and starting MQX
  • Developing with NXP CodeWarrior Development Studio
    • Build projects
    • PSP build-project
    • BSP build-project
    • Post-build processing
    • Processor expert
Exercise :  Creating a simple MQX project using SDK or NXP CodeWarrior Development Studio and the Processor Expert Tool
Second day
Managing and Scheduling tasks with MQX
  • Managing Tasks
    • Creating tasks
    • Managing task errors
    • Terminating tasks
  • Scheduling
    • FIFO scheduling
    • Round Robin scheduling
  • Context Switch
Exercise :  Use the MQX API to manage tasks
Memory Management
  • Memory with variable-size blocks
  • Lightweight memory with variable-size blocks
  • Memory with fixed-size blocks
    • Creating partitions
    • Allocating and freeing partition blocks
Exercise :  Managing memory
Synchronizing Tasks
  • Synchronizing tasks through MQX RTOS
    • Events
    • Lightweight events
    • Lightweight semaphores
    • Semaphores
    • Lightweight Messages queue
  • Mutual Exclusion through MQX RTOS
    • Create critical sections
    • Mutexes
    • Avoiding Priority inversion
Exercise :  Synchronizing tasks using MQX semaphores API
Exercise :  Create mutual exclusion using MQX semaphores API
Third day
Interrupt Management
  • Handling Interrupt with Cortex-M4 core
  • Handling Interrupt and Exceptions in MQX RTOS
    • Initializing interrupt handling
    • Restrictions on ISRs
    • Handling exceptions
    • Handling ISR exceptions
    • Handling task exceptions
Exercise :  Use the MQX API to handle interrupt
Timing with MQX RTOS
  • Time components
  • Timers
  • Lightweight timers
  • Watchdogs
  • Hardware Timer on Cortex-M4
Exercise :  Using software timers
Debugging the application
  • Instrumentation
    • Logs
    • Lightweight logs
    • Kernel logs
    • Stack usage utilities
Exercise :  Debug an application with the log component
IO Drivers at a glance
  • Drivers architecture
  • Installing Drivers
  • Using Drivers
Exercise :  Hands-on: Working with the ADC Driver
Getting Started with the MQX Libraries
  • How to start with the different libraries (MFS, Shell, RTCS, USB) using the providing examples
    • RTCS and Shell Libraries at a glance
Exercise :  Running a simple TCP echo Server / HTTP server application