【Perf-V评测】+初识澎峰Artix 7 FPGA 开发套件
<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">期待中的澎峰Artix 7 FPGA 开发套件很快就被快递小哥送到了，打开简易的包装盒，其内是组成开发套件的4个组成部分，见图1所示。</span></span></span></span></span></span></p><p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">在开发板的背面，也是有器件的，且提供了外部扩展的高速接口，见图2所示。</span></span></span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">图1 开发套件</span></span></span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">图2 开发板背面</span></span></span></span></span></span></p>
<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">开发板是由稳压电源来供电的，而调试工具则是靠USB线来供电的。但其实开发板上的电源配置要更为复杂，所提供的电压等级有：</span></span></span></span></span></span></p>
<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span lang="EN-US" style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">5V</span></span></span><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">电源输入、3.3V输出、1.8V输出、1.5V输出、1.0V输出及0.75V输出，这在单片机及ARM中是少见的。</span></span></span></span></span></span></p>
<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">此外，以确保电路的有效，Artix-7FPGA的电源是有上电顺序的，其上电次序依次为1. 0V->1. 8V->1. 5V、3.3V。 </span></span></span></span></span></span></p>
<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">在好奇心得驱使下，很想看看出产DEMO的延时效果，但似乎并没有预装程序般的平静，只是电源指示灯被点亮，其效果如图所示。</span></span></span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">图3 上电效果</span></span></span></span></span></span></p>
<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">至于板载的资源，从图4即可管见一斑。</span></span></span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">图4</span></span></span><span style="font-family:宋体"><span style="letter-spacing:.75pt">开发板结构图</span></span></span></span></span></p>
<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">其实我喜欢这块开发板的原因主要有3点：</span></span></span></span></span></span></p>
<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span lang="EN-US" style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">1. </span></span></span><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">外设资源相对丰富，不像一些开发板只配了一个LED灯再外加2个按键。此外，就是Arduino接口的配置，可以定向地进行使用和扩展。</span></span></span></span></span></span></p>
<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:12.0pt"><span style="font-family:宋体">2.</span></span> <span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">开发板配备的资源及例程相对丰富，易于参考和学习。</span></span></span></span></span></span></p>
<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span lang="EN-US" style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">3. </span></span></span><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">移植了多种RISC-V架构及软核移植部署工作，使用户能够透过软核在更高一个层级开发，以便更高效地进行开发。这样会更容易扩展和丰富外设功能。</span></span></span></span></span></span></p>
<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="background:white"><span style="font-family:Calibri,sans-serif"><span style="font-family:"微软雅黑","sans-serif""><span style="color:#444444"><span style="letter-spacing:.75pt">后面的任务就是快速将开发环境搭建起来，尽早地体会例程及功能验证所带来的快乐！</span></span></span></span></span></span></p>
<p>够快，期待后续的深入评测啦</p>
nmg 发表于 2021-1-14 10:52
够快，期待后续的深入评测啦
<p>努力！！！</p>
<p>速度好块啊！！！！赞，期待你后续的测评</p>
<p><img height="48" src="https://bbs.eeworld.com.cn/static/editor/plugins/hkemoji/sticker/facebook/congra.gif" width="48" />赞赞赞，顶起来</p>
okhxyyo 发表于 2021-1-14 11:08
速度好块啊！！！！赞，期待你后续的测评
<p>管管大人，我也想申请成功了…………<img height="53" src="https://bbs.eeworld.com.cn/static/editor/plugins/hkemoji/sticker/facebook/sad.gif" width="54" /></p>
<p> </p>
<p>最近国产化要求挺高，能不能搞一块国产FPGA活动，比如 紫光同创的FPGA，期待期待啊</p>
<p> </p>
<p> </p>
wzc86354120 发表于 2021-1-18 23:26
管管大人，我也想申请成功了…………
最近国产化要求挺高，能不能 ...
<p>年前没有再推新的测评活动了哦。年后回来我去尝试联系下下给大家争取看看。你有了解到的国产FPGA方面觉得不错，想要测评的吗？也可以向我推荐推荐，我给大家去找对方沟通沟通</p>
okhxyyo 发表于 2021-1-19 09:28
年前没有再推新的测评活动了哦。年后回来我去尝试联系下下给大家争取看看。你有了解到的国产FPGA方面觉得 ...
<p><img height="52" src="https://bbs.eeworld.com.cn/static/editor/plugins/hkemoji/sticker/facebook/wanwan70.gif" width="57" />妥妥的，很期待，持续关注，就等申请啦，嘿嘿</p>
<p>国外这些FPGA芯片价格是不是又涨了呀？</p>
wzc86354120 发表于 2021-1-18 23:26
管管大人，我也想申请成功了…………
最近国产化要求挺高，能不能 ...
<p>紫光同创好像不能自主研发生产FPGA芯片吧?</p>
<p>riscv搞起来了吗？期待期待！</p>
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