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Book Description
By finelybook
This case study shows processes, tools, and methods used by embedded system developers. The book’s content is derived from the author’s 35 years experience developing embedded systems for major corporations. The example project is a digital trombone implemented on an mbed and Arduino compatible, NUCLEO-L432KC board from STMicroelectronics..
This book uses an example project to illustrate each of the steps used to develop a new embedded system program.
System requirements and architecture are provided, followed by methods to estimate level of effort needed to implement them. A simple design methodology shows how to divide the system into cooperating virtual software objects, along with suggestions for their verification. Suggestions are made for coding, debugging, and verifying the virtual objects, as well as integrating them into a working program, and demonstrating the requirements have been met.
The source code implements a digital trombone, which uses a slide potentiometer to control note frequency, and an air pressure sensor with a tube into which the user blows to make notes and modulate their volume. A spring-loaded on-off switch is used to choose between saw, square, triangle, or sine waveforms. The interrupt driven, buffered DAC output is conveyed to an on-board, 3.5 mm audio jack.
The example program can be built with a free version of the GNU ARM compiler toolset on Windows, Linux, or Mac. The binary code produced can be copied to the NUCLEO-L432KC mbed icon on the desktop. Or the Visual Studio Code program from Microsoft may be used to build, load and debug the program on the target board.
Table of Contents
Chapter 1: Preliminaries
Introduction
Some Definitions
Chapter 2: The Conceptual Map
Documentary Aspect of the Conceptual Map
Mental Aspect of the Conceptual Map
Layers of the Conceptual Map
Real Engineers
Chapter 3: Development Processes
Chapter 4: Context
Chapter 5: Requirements Analysis
Use Case Summary
Formal Requirements List
Reverse Engineering
Requirements Workshop
Requirements Model
Safety Issues
Chapter 6: Preliminary Design
Digital Trombone Architecture
Architecture Workshop
Chapter 7: Estimating
COCOMO Method
Modified Function Point Method
Add Up The Guesses Method
Combining The Estimates
Chapter 8: Tool Selection
Chapter 9: Hardware Support
Chapter 10: Detailed Design
Runtime Pattern for Digital Trombone
Module Overview Diagram for Digital Trombone
Module Interaction Diagrams for Digital Trombone
Module Catalog
Chapter 11: Code
Choice of Language
Choice of Hardware Access Layer
Coding Standards
Coding the Trombone Project
Chapter 12: Debug
Bug Categories
Chapter 13: Integrate
Advice for Integrators
Chapter 14: Verify
Chapter 15: Validate
APPENDIX
Vendor Documents
Amazon page
