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When I talk to people about Google and its organizational culture, they are equally fascinated and hopeless, believing that the magic behind Google lies in the deep revenue streams that make it possible to feed its employees three meals a day. Small businesses, especially, tend to dismiss Google as 阅读全文
posted @ 2012-09-26 13:34
Biiigfish
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In instrumentation circuitry, DC signals are often used as analog representations of physical measurements such as temperature, pressure, flow, weight, and motion. Most commonly,DCcurrentsignals are used in preference toDC voltagesignals, becausecurrentsignals are exactly equal in magnitude througho 阅读全文
posted @ 2012-09-26 13:31
Biiigfish
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来自:http://www.mcublog.com/blog/user1/9365/archives/2007/25501.html§1、安装: SPB15.2 CD1~3,安装1、2,第3为库,不安装 License安装: 设置环境变量lm_license_file D:\Cadence\license.dat 修改license中SERVER yyh ANY 5280为SERVER zeng ANY 5280§2、用Design Entry CIS(Capture)设计原理图 进入Design Entry CIS Studio 设置操作环境\Options\Prefer 阅读全文
posted @ 2012-09-26 13:30
Biiigfish
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T568B和T568A为美国电子电气工程师协会(EIA/TIA)两种双绞线制作标准,不同的是,当前国内普遍使用线缆颜色稍有不同,对应T568B为橙白,橙,绿白,蓝,蓝白,绿,棕白,棕。该线序同时适用于FE和GE。市面上压制好的双绞线多是两端同为T568B线序。直连线直连线两端的线序一致,即,要么同时T568B,要么同时T568A。1) 10/100M Base-twisted pair这里只是用4根线,分别是:白橙Rx_Postive,橙Rx_Nagtive,白绿Tx_Postive,绿Tx_Nagtive.同时,这四根线在设备内部,经过xformer,与PHY相连,同名端相对应。2)1000 阅读全文
posted @ 2012-09-26 13:28
Biiigfish
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哈哈,写的跟过家家似的,主要是人少,重复说做了什么就没多大意思了,所以吧,就当调节气氛了===============2011.12-2012.06个人工作总结==================虽然和工作没有关系,但是想回顾一下来这里工作前的大半年。那叫啥,承前启后?不过,老实讲,那半年没啥好写的。过的很轻松,真的很轻松,就像是完成了一项伟大的工作后老板和我自己都给自己放了个长假。每天的工作就是查芯片资料,查方案,看下过来的各种PDF和PPT。。。主管给我安排的工作是让我设计实现一个Home Gateway,但是他不确定老板会不会给他做。一个完整的产品,前面参与的案子不是在别人设计上修修改改 阅读全文
posted @ 2012-09-26 13:15
Biiigfish
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