Creating your first application

In this guide, we’ll embark on an exciting journey to understand the process of creating, deploying, and operating applications specifically tailored for the ACU6 platform. Our focus will be on a practical example: an application designed to sequentially toggle the system’s LEDs.

This guide is crafted not only to provide step-by-step instructions but also to offer insights into the nuances of the ACU6 system, ensuring that you gain both the knowledge and skills necessary for effective application development on this platform.

Contents

• Build environment setup for ACU6 applications
  • Download the Project Template
  • Project File Structure Explained
  • Extracting the ACU6 SDK into Your Project
    • SDK Extraction Process
  • Populating the Files Folder in Your ACU6 Project
    • Detailed File Additions
  • Finalizing Setup with Docker
    • Docker Image Creation
• Configuring a Buildroot Package
  • Initialization Process
  • Understanding the File Structure for Buildroot Package
    • File Structure Overview
    • Creating a New Package
  • Creating a Skeleton Package for Buildroot in ACU6 Project
    • Skeleton Package Structure
    • Configuring the Config.in File for the led-example Package
    • Creating and Configuring the led-example.mk Makefile for Buildroot Integration
    • Starting with a Basic Source File for led-example
    • Detailed Makefile for led-example Package
  • Adding the led-example Package to the Build Tree
    • Key Files and Modifications
  • Finalizing Setup with Menuconfig for led-example Package
  • Verifying the Configuration of the led-example Package
• Implementing an Event Loop for Effective Communication with the Base System
  • Inspecting the API for LED Control in the ACU6 System
  • Key Points of the LED API
  • Creating an new file event_handler.h for Event Handling
    • Key Components of event_handler.h
  • Implementing the Event Handler in event_handler.c
    • Key Elements of event_handler.c
  • Enhanced Response Handler in LED Control
  • Adjust Makefile and Verify
    • Verification Steps:
• Add a Timer to the Event Loop
  • Expanding Interface
  • Adding Timer to Epoll
    • Initial Setup
    • Configuring the Timer
    • Modifying the Event Loop
    • Arming and Disarming the Timer
  • Adding Logic to the Main Program
    • Defining LED Order and Iteration Variables
    • Implementing the Timer Callback
    • Updating the IPC Handler
    • Argument Handling in Main Function
  • Verification Process
    • Rebuilding the Application
    • Counting LED Pulses
• Run on Startup
  • File Structure
  • Creating Overlay Files and Folders
  • Add Overlay to Buildroot
    • Updating Buildroot Configuration
  • Init Script
  • Verification
    • Build and Flash the Image
    • Observing the Results
• New functionality
  • Add Location Service to led-example
  • Modify Event Handler
  • Updating event_handler.h
  • Modify LED Example
  • Modify Timeout Handler
  • Rebuilding the Application for the last time
  • Observing Application Behavior
  • Future Considerations