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The Review of Instruction Set Architecture
The instruction set architecture (ISA) is one of the most important design issues that a CPU designer must get right from the start. Features like pipelining, cache architecture, superscalar implementations can all be grafted on to a CPU design after the original design is obsolete. However, it is difficult to modify the instructions a CPU executes once the CPU is in production and software is written in these instructions. Therefore, the instruction set architecture plays a vital role in the design and dev
我对开放源码的一些想法
<p>我是美国国家仪器的汤敏,很高兴来到这样的具有首创意义的开放源码硬件社区。应该说,Kevin的思想和我是有些不谋而同的:嵌入式系统的开发现在处于一个很尴尬的瓶颈区,新的器件不断推出,功能愈发强大,但是<span style="font-size: 10.5pt; font-family: 宋体">嵌入式软件及其开发人员目前似乎都处于各自发展的十字路口。</span><span style="font-size: 10.5pt; font-family: &#39;Times New Roman&#39;">Venture Development</span><span style="font-size: 10.5pt; font-family: 宋体">公司</span><span style="font-size: 10.5pt; font-family: &#39;Times New Roman&#39;&quo
开博了开博了
<p>这个id居然也可以申请</p><p>本人以后就跟fpga扯上了,专业学的是通信</p><p>希望可以跟大家多多交流,互相提高</p>
川川博客之OpenHard系列之一 我是谁?谁是我?
<span style="font-family: SimSun"><strong><span style="font-family: SimSun">我是谁?谁是我?</span><span></span></strong></span> <p style="margin: 0mm 0mm 0pt" class="MsoNormal"><span style="font-family: SimSun">人称豆子川,喜欢别人叫我川哥(感觉倍有面子)。我所在的华桑电子有限公司是此次赛灵思开放源码硬件创新大赛的合作伙伴。而我有幸能成为此次大赛评委会的成员,很高兴和大家在这里相识!相知!相。。。</span></p><span><font face="Times New Roman">&nbsp;</font>&
用FPGA做RS232还行,做I2C,该学一下状态机了
<p>花了4个小时做出了串口通信模块,面对I2C有点怕怕,好像用状态机简单很多,但现在快期末了,有空学一下</p>
单频网
<span style="font-size: 12pt; color: black; font-family: 宋体">传统的多频网覆盖的方式,服务区内相邻的发射机为了避免相互干扰,在发送同一路信号时采用不同的频率。由于广播业务的数据量大,常占用较</span><span style="font-size: 12pt; font-family: 宋体">宽的频带。采用单频覆盖的方式,多台发射机传送一路信号只需一个频段,因此节省了大量的频率资源。</span><span style="font-size: 12pt"></span><span style="font-size: 12pt; font-family: 宋体">在</span><span style="font-size: 12pt"><font face="Times New Roman">SFN</f
BiCMOS
<p><span>BiCMOS</span>技术是将单、双极两种工艺合适地融合在一起的技术,但这绝不是简单、机械地掺和在一起,很多工艺可以一块儿或设法结合在一起做。目前<span> BiCMOS</span>工艺主要有两种:一是以<span>CMOS</span>为基础的<span>BiCMOS</span>工艺,这种工艺对保证<span>CMOS</span>器件的性能较为有利;二是以双极工艺为基础的<span>BiCMOS </span>工艺,这种工艺比较张扬<span>BJT</span>器件的性能。图<span>1</span>是以<span>CMOS</span>为基础的<span>0.8&mu;m BiCMOS</span>器件的纵向剖面图。<span> <br /> <!--[if gte vml 1]>
uart
1 The UART: What it is and how it works<br /><br />Copyright &copy; 1996 Frank Durda IV &lt;uhclem@FreeBSD.org&gt;, All Rights Reserved. 13 January 1996.<br /><br />The Universal Asynchronous Receiver/Transmitter (UART) controller is the key component of the serial communications subsystem of a computer. The UART takes bytes of data and transmits the individual bits in a sequential fashion. At the destination, a second UART re-assembles the bits into complete bytes.<br
[转载]MOSFET
<table border="0" cellspacing="0" cellpadding="0" width="100%" class="htb wr"><tbody><tr><td><div class="box2 p14"><a href="http://baike.baidu.com/pic/51/11797546062415003.jpg" target="_blank"><img src="http://baike.baidu.com/pic/51/11797546062415003_small.jpg" border="0" alt="" title="点击查看大图" hspace="5" vspace="5" width="200&
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