博客列表

在你工作的时候吹口哨(Whistle While You Work)
发表于:2009-05-17 13:15:15 | 分类:测量与传感器
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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 WorkA Look at a Modern DSPRemember 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 game. Shorthand can be helpful, but sometimes it can be misleading, especially as the

FAT文件系统的查看(FAT File System Review (Part 2))
发表于:2009-05-16 13:24:01 | 分类:机器人
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现在,你已经熟悉了FAT文件系统,George从不同角度带您了解了这个东西。通过向你展示一个通用FAT文件系统,他向你挑战,移除了不需要的功能并自定义你需要的应用。FAT File System Review (Part 2)C Code for the File SystemNow that you’re familiar with the FAT file system, George approaches the subject from a different angle. By presenting you with a general-purpose FAT file system, he challenges you to remove the features you don’t need and customize your application.In “DIY Signal Generation,” Neal Martini writes: “I have been using C to program my past few projects. It was a little pain

没有NTSC的世界(A World Without NTSC)
发表于:2009-05-15 20:41:16 | 分类:测量与传感器
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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 NTSCBridge the Gap Between NTSC and VGANTSC 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 mandated that most broadcasters cease transmitting NTSC in favor of digital television.

无变压器的供电方式(Transformerless Power Supply)
发表于:2009-05-15 14:06:20 | 分类:测量与传感器
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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 minutes later, if the door is not closed, the outlet shuts off.Do you need a low-cost way to run a simple 5-V circuit fro

二十一世纪的磁盘操作系统(DOS in the 21st Century)
发表于:2009-05-13 15:06:30 | 分类:嵌入式编程
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不用花费太多的努力,您可以把磁盘操作系统(DOS)变成一个方便的实时操作系统。正如Andrew和Jon所说的,它可能是最适合一个可能需要太多资源的单板微控制器嵌入式应用的系统。请您仔细阅读,了解这个USB闪存驱动器适用于磁盘操作系统(DOS)的阅读器是如何能够增强您未来的嵌入式应用的。A USB Flash Drive Reader for MCUs Works for DOSWith a little effort, you can turn DOS into a handy real-time operating system. As Andrew and Jon explain, it can be the perfect fit for embedded applications that may require too many resources for a single-board microcontroller. Read on to learn how this USB flash drive reader for DOS can enhance your future embedded a

构建一个USB的GPIO口(Construct a USB GPIO Pod (Part 2))
发表于:2009-05-12 14:28:37 | 分类:嵌入式开发
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在这个系列文章的第一部分中,DJ呈现了一个通用目标输入输出模块(GPIO),它能够插入一个USB接口。现在他将描述如何下载一个JTAG编程应用以及如何为一个CPLD电路进行编程。USB JTAG ModuleIn the first part of this article series, DJ presented a general-purpose input/output (GPIO) pod that can plug into a USB port. Now he describes how to download a JTAG programming application and program a CPLD circuit.As I explained in the first part of this article series, you can use a general-purpose input/output (GPIO) module that plugs into a USB port on your computer to make up for the lack of a pa

智能铅酸电池电量计(Smart Lead-Acid Battery Meter)
发表于:2009-05-11 14:42:11 | 分类:测量与传感器
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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 BatteriesThink 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 found in almost all portable, mobile, and mission-critical electronic equipment. New technologies are sto

经历ZSTAR(ZSTAR Trek)
发表于:2009-04-09 09:16:35 | 分类:嵌入式开发
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结合了微控制器、传感器和无线功能,ZSTAR3评估套件能够成为您下一个项目伟大的起点。除了一个无线的加速度传感器外,它还包括一个USB即插即用无线集线器以及易于操作的计算机应用软件。A Healthy Mix of MCUs, Sensors, and Wireless TechnologyWith a combination of MCUs, sensors, and wireless capabilities, the ZSTAR3 evaluation kit could be a great starting point for your next project. In addition to a wireless accelerometer, it includes a USB plug-in wireless hub and handy PCbased utility software.What are three of the tastiest ingredients in an embedded designer’s pantry?The first is that modern-age m

可编程机器人(Programmable Robotics (Part 2))
发表于:2009-04-08 22:23:24 | 分类:机器人
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当Jeff不能为iRobot公司的Create机器人添加蓝牙适配器模块时(因为它使用了相同的运载站连接器做为命令模块),他做了任何优秀设计者应该做的:他建立了属于他自己的模块。在本月的刊物中,他阐述了如何使用一个带有双串行接口的微控制器替换命令模块。Application DevelopmentWhen Jeff couldn’t add a Bluetooth adapter module to iRobot’s Create (because it used the same cargo bay connector as the Command Module), he did what any good designer would do: he built his own. This month, he explains how to replace the Command Module with a two-serial-port microcontroller.Last month, I introduced you to iRobot ’s Create robotic platform, whi

时域反射仪(Time Domain Reflectometry)
发表于:2009-04-07 22:25:06 | 分类:嵌入式开发
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Robert使得时域反射仪这一课题不再神秘,它能够帮助您检测,测量以及找出任何阻抗不匹配的输电线路。为了做到这一点,他解释了时域反射仪背后的理论,并提出了一些切实可行的实验。Detect and Measure Impedance MismatchesRobert demystifies the topic of time domain reflectometry, which enables you to detect, measure, and locate any impedance mismatch in a transmission line. To do so, he explains the theory behind it and presents some practical experiments.Welcome back to the Darker Side. We all have favorite topics. One of mine is impedance matching. I know I have already brought it up in previous col