2011
Linux Embedded Software Development Blog
by onanong
Blog about embedded software development under Linux and Android. Articles about embedded processors, their software development kit and development boards, news about gadgets using embedded platforms mainly smartphones, tablets, media players, stb, digital signage, smart grid solutions...
2007
2006
Motor-controlling PWMs
by YukuanBlog
一個脈寬調變（Pulse-width Modulation, PWM）訊號可控制一顆 DC motor 轉速，或決定一具 servo motor 的方向、位置或轉速。在複雜的機器人身上，常用上好幾顆馬達，因而能以一顆微控制器（microcontroller, uC）產生多組 PWM 訊號是非常實用的。
Software Anti-interference
by YukuanBlog
為了維持機器正常運作，除了硬體設計上要把雜訊干擾納入考量外，軟體也不可以坐以待斃，以下整理一些簡單、低階的軟體抗雜訊手段：
Console I/O Without OS
by YukuanBlog
在沒有 preemptive multitasking OS 支援下，很容易因 print out 的訊息太多，使系統 delay 過久。這在許多場合是無法接受的。一個常見的例子是同時處理另一個網路連線下，許多 protocol 都嚴格限制裝置回應時間
Robot Programming : A Practical Guide to Behavior-Based Robotics
by YukuanMark
Jones, one of the inventors of the first widely adopted consumer robot,introduces the history and theory behind behavior-based programming, teaches skills needed for programming a robot, and provides readers with a virtual robot on a web site to test prog
機器人編程技術
by YukuanMark
本書主要闡述了基於行為的機器人編程思想和相關編程技巧，比較詳細地介紹了在編程過程中有可能遇到的各種問題，並據此提出了相應的解決方案，提供了大量的行為代碼和仲裁代碼示例。本
An Array Implementation of Queue
by YukuanBlog
Embedded System 程式開發， queue 是很常用的資料結構： UART 在接收及傳輸資料時，通常各需要一個 character queue；在處理 keypad 的按鍵輸入時需要一個 key queue ；task 間的溝通，也可能要用到某種 event queue 。
Watchdog Timers
by YukuanMark
To keep a watchdog timer from resetting your system, you've got to kick it regularly. But that's not all there is to watchdog science. We will examine the use and testing of a watchdog,as well as the integration of a watchdog into a multitasking environme
Real Time Application Design
by YukuanMark
This section presents four contrasting design solutions to a hypothetical embedded real time application. The suitability of each solution is judged for embedded computers with varying RAM, ROM and processing capabilities. In addition the simplicity and c
Controlling The Real World With Computers
by YukuanMark & 2 others
This site uses hands-on experiments to show the basics of how real things in the real world are controlled with computers. That means it's about most of the computers in the world. Most computers don't sit on desks, but are used to control things that don
Enjoy the Fine Code
by YukuanBlog
由〈初等概念〉文末附的 links，我尋線逛到 Dan Saks 在 Embedded.com 發表的專欄，並發現許多精緻優雅的 C 程式片段，堪稱為程式中的小品文，值得好好駐足欣賞：
Patterns for Time-Triggered Embedded Systems
by YukuanMark
Embedded software is ubiquitous. It forms a core component of an enormous range of systems, from aircraft, passenger cars and medical equipment, to childrens’ toys, video recorders and microwave ovens. This book provides a complete and coherent set of s
B#：作為嵌入式系統的輕量級程式語言
by YukuanMark
閱讀 [DeepObjectKnowledge, Inc.] 首席科學家 Michel de Champlain 與加拿大 Trent University 助理教授 Brian G. Patrick 刊載於 Embedded.com 的文章 [B# - A programming language for small footprint embedded systems applications: Part 1] 得
More ways to map memory
by YukuanMark
This is the third in a series of articles on accessing memory-mapped device registers using C and C++. In my previous column (November 2004), I discussed how small variations in memory-mapping techniques might lead to differences in the efficiency of comp
Place volatile accurately
by YukuanMark
In my last column, I advised you to use the volatile qualifier, but use it judiciously.1 This month, I'll present some specific situations to show why and how you should think carefully about exactly where to place the volatile keyword in declarations.
A Unit Testing Toy
by YukuanBlog
Unit Testing 的 framework，最早是由 Kent Beck 在 Simple Smalltalk Testing 中提出的。隨著 Java 的流行，及其和 Smailltalk 的相似性，Kent Beck 又完成了在 Java 下的 Unit Testing framework -- JUnit 。隨著 Extreme Programming 的熱門，以及 test-driven development 在實務上的成功，現在幾乎各種程式語言都有它們的 Unit Testing Framework ，大家都來 Unit 一下，被通稱為 XUnit。
2005
1
(23 marks)
