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Showing posts from July 17, 2010

How to use Keil complier

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Microprocessor is a cpu on a single chip, example includes any processor like Pentium.While a microcontroller include a cpu,ram,rom,i/o ports along with timers on a single chip example includes 8051 microcontroller. Embedded system uses a microprocessor or microcontroller to do one task and one task only, example includes a printer since the processor inside it performs only a single task, namely getting the data and printing it. For using 8051microcontroller in embedded applications a complier is used named as keil … A compiler is a special program that processes statements written in a particular programming language and turns them into machine language or "code" that a computer's processor uses. When you start the keil software just like Microsoft word there u find file, edit, view ,project options and so on … steps involved are : 1.     Start keil a window shown below appears: 2.     .  Go to project option. And then new project the following pop up appears: 3

WiMAX

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What is WiMAX? —   Worldwide Interoperability for Microwave Access (WiMAX) is the common name associated to the IEEE 802.16a/REVd/e standards. These standards are issued by the IEEE 802.16 subgroup that originally covered the Wireless Local Loop (WLL) technologies with radio spectrum from 10 to 66 GHz. Recently, these specifications were extended below 10 GHz. —   The WiMAX Forum intends to do for 802.16 what the Wi-Fi Alliance did for 802.11: —   harmonize standards and certify interoperability between equipment from different vendors. Standardized interoperable solutions will result in mass volume and bring down costs, —    promote and establish a brand for the technology. History —   WiMAX Forum was formed in April of 2001 as an industry group to promote conformance and Interoperability of IEEE 802.16-2001 Broadband Wireless Access products. —    Founding organizations; Ensemble, CrossSpan, Harris, and Nokia. —   The first version of the standard, 802.16, was published in April 2002