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• 在你工作的时候吹口哨（Whistle While You Work）　2009-05-17 13:15
  还记得你父亲的DSP么？好的，德州仪器的Piccolo不是。Tom提出了“DSP在伪装”并描述了你如何能够使用它进行信号处理应用，如开关电源以及其他方便的应用。 Whistle While You Work A Look at a Modern DSP Remember your father’s DSP? Well, the Texas Instruments Piccolo isn’t it. Tom presents this “DSP in disguise” and describes how you can use it to handle signal-processing applications such as switcher power supplies and other handy applications. Labels and acronyms have always been part of the silicon ga...
  

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• 没有NTSC的世界（A World Without NTSC）　2009-05-15 20:41
  NTSC系统很快将成为过去的事情。那么，在一个没有NTSC系统的世界里你将做什么？Jeff回答了这个问题。请仔细阅读，了解他如何使用一块芯片来作为NTSC和VGA格式缺口之间的桥梁。 A World Without NTSC Bridge the Gap Between NTSC and VGA NTSC will soon be a thing of the past. So, what will you do in a world without the NTSC? Jeff answers that question and more. Read on to learn how he is using a chip to bridge the gap between the NTSC and VGA formats. The United States Federal Communications Commission (FCC) has...
  

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• 无变压器的供电方式（Transformerless Power Supply）　2009-05-15 14:06
  不想购买昂贵的变压器或转换器来运行您简单的电路，您可以试试不使用变压器供电的方法。Tom建造了一个开关，来控制厨房的灯。当门打开时，处理器感知簧片传达的信息并为电源插座供电。三分钟后，如果门没有关，电源插座将断电。 Instead of buying expensive transformers or converters to run your simple circuits, try using a transformerless power supply. Tom used one to construct a switch that controls lights in a pantry. When the door is opened, a processor senses a reed relay and powers up the outlet. Three minu...
  

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• 智能铅酸电池电量计（Smart Lead-Acid Battery Meter）　2009-05-11 14:42
  认为密封铅酸（SLA）电池是一个过时的东西？请再想想。它们一定会在未来的几年有好的前景。Dale为他的密封铅酸（SLA）电池设计了一种充电状态计。他的彩色发光二极管计量器简化了电池充电的检测。 An MCU-Based “Gauge” for SLA Batteries Think sealed lead-acid (SLA) batteries are a thing of the past? Think again. They are bound to be around for years to come. Dale designed a state-of-charge meter for his SLA batteries. His multicolored LED meter simplifies battery charge testing. Rechargeable batteries are fo...
  

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• 改变（Making Changes）　2008-10-28 20:11
  A Look Into The C Compiler Guess what happened after George recently made a few simple changes to a product for a customer and then recompiled the code？ Compiler errors！ In this column， he describes how he addressed the problem. While I was reading an article recently， the author wrote that he was using assembly language so he would have more control over the code. I thought this wasn‘t true. The C language should give you all of the control over the generated code you would ever want. A sh...
  

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• 设计者最好的朋友（Designer’s Best Friend）　2008-10-19 13:51
  The roots of Altera‘s MAX II go back about 30 years to the programmable array logic （PAL）device. This month， Tom covers the history of programmable logic chips and introduces you to MAX II technology. Say hello to his little friend. In this the twentieth year of Circuit Cellar magazine， I find myself contemplating new developments in the context of history. Like they say， you can‘t know where you are if you don't know where you started. This month， let‘s look at a chip whose roots go ba...
  

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• 控制电路(Control Circuitry)　2008-10-13 22:18
  Advances in video game technologies and controllers are changing the ways we interact with gaming consoles. If you don‘t want to buy expensive power pads and controllers， you can follow Jeff's lead and build your own controllers with much of the same circuitry. Dance dance revolution！ And what a revolution it was！ Konami‘s "Dance Dance Revolution"（DDR） was one of the first "video games" to involve its participants in a level of physical activity beyond typical exploration and defensive th...
  

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• 先进的连接I/O技术（Advanced Technology Attachment I/O）　2008-09-30 23:56
  Use ATA Interfaces For General-Purpose I/O Applications Using modern PC interfaces for connecting application-specific hardware can create a wide range of problems for embedded designers （e.g.， slow communication and long latencies）.In this article， Wolfgang describes a viable alternative： an ATA interface. Employing ATA as the low-latency embedded interface allows you to apply miniaturized motherboards instead of typical industrial platforms， which are considerably more expensive. When PC...
  

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• 嵌入式Linux开发-II（Embedded Linux Development(Part 2)）　2008-09-22 14:44
  Create An Embedded Development Environment David finishes describing his coLinux cross-development platform that runs on Windows.You can create an embedded development environment with him on coLinux or other versions of Linux. In the first part of this series， I focused on creating a virtual Linux environment on a Windows system using coLinux. coLinx is real Linux running under Windows as a process. It uses Linux device drivers communicating with Windows services to map access to Windows resou...
  

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• 电子数据记录与分析（Electronic Data Logging And Analysis）　2008-09-14 13:47
  A How-To Guide For Building A Seizure-Monitoring System Steve's electronic monitoring system enables pet owners and vets to monitor the patterns of epileptic seizures in dogs. The real-time, ATmega32-based system logs the number of seizures and measures the time between them. My canine companion， Princess Leia， often spent her days curled up in the corner of my electronics dungeon wondering what was so amazing and fascinating about wires and electronic circuits. She figured that a long walk wi...
  

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• 模拟与数字碰撞在哪（Where Analog And Digital Collide）　2008-09-07 10:52
  An Easy-To-Use LCR Meter Miguel‘s portable LCR meter makes it easy to analyze the analog performance of virtually any device under test， whether in the lab or on the job.The dsPIC30F4012-based meter uses DDS techniques and DSP methods to condition the resulting voltage and current signals. Its handy user interface and graphic LCD make it easy to operate and read. In the back of my mind， I keep two lists of tools that I would like to add to my electronics workbench. The first is made up of too...
  

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• 深度测量（Depth Measurement）　2008-09-01 11:04
  Construct An Ultrasonic Snow Depth Sensor Gerhard used the sonar components from an autofocus camera, a Microchip PIC18F452 microcontroller, and several off-the-shelf parts to construct an ultrasonic snow depth sensor system. The low-power design provides accurate snow depth measurements and is easy to integrate into other weather station systems. Snowfall and snow depth measurements are important to anybody who receives regular snowfall. Several traditional methods of measuring snow accumulatio...
  

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