• 发文章

  • 发资料

  • 发帖

  • 提问

  • 发视频

创作活动
0
登录后你可以
  • 下载海量资料
  • 学习在线课程
  • 观看技术视频
  • 写文章/发帖/加入社区
返回

电子发烧友 电子发烧友

  • 全文搜索
    • 全文搜索
    • 标题搜索
  • 全部时间
    • 全部时间
    • 1小时内
    • 1天内
    • 1周内
    • 1个月内
  • 默认排序
    • 默认排序
    • 按时间排序
  • 全部板块
    • 全部板块
大家还在搜
  • 435B-K05输出不确定性

    478A-H76, or a Tegam 1806 or 1830A and a thermistor mount.Some of my associates argue that we could

    2019-08-02 14:33

  • DSP48E1作为延迟移位寄存器

    sensible approach (in my case I would argue they are "abundant"), however part of me

    2019-04-18 06:40

  • 无符号类型与整数文字不匹配

    大家好,我正在测试一个简单的vhdl axample。我注意到与case语句一起使用的代码(粘贴了bellow)会生成错误,但是当在if / elsif语句中使用相同的代码时,不会报告错误。知道为什么吗? case和if / elsif之间有区别吗?signal rx_count:unsigned(15 downto 0);case rx_count是当15 =>- 这就产生了“无符号类型与整数文字不匹配”的错误。如果rx_count = 15那么 - 没有错误问候,Klemen以上来自于谷歌翻译以下为原文Hello everybody,I am testing a simple vhdl axample. I noticed that the code (pasted bellow) used with case statement generates the error, but when the same code is used in if/elsif statement, no error is reported. Any idea why? Is there a difference between case and if/elsif? signal rx_count : unsigned (15 downto 0); case rx_count iswhen 15 => -- THIS generatres the "Type unsigned does not match with the integer literal" error. if rx_count = 15 then -- no error Regards,Klemen

    2019-03-05 12:53

  • 怎么使用KE5FX GPIB Toolkit通过gpib获取情节

    嗨,我正在尝试使用KE5FX GPIB Toolkit(Spectrum Surveillance Utility)通过gpib获取情节。 GPIB适配器是Prologic 6.5 USB-GPIB。我有E4405B SA,A.07.06固件版本。当我按下“获取情节”时,我得到“请设置振幅到log div”,因为我的振幅是“log”,10dB / div设置另一个E.12405B与A.12.00修订版工作正常,使用相同的设置和软件。修订版12.00有一些有关GPIB命令的更新,我必须更新我的修订版本,或者如果有人知道其他软件以将绘图下载到PC? 以上来自于谷歌翻译 以下为原文Hi I'm trying to get plot via gpib usingKE5FX GPIB Toolkit (Spectrum Surveillance Utility). GPIB adapter is Prologic 6.5 USB-GPIB. I have E4405B SA with A.07.06 firmware rev. When I press "Acquire plot" I get "Please set amplitude to log div" as my amplitude is "log" with 10dB/div setting Another E4405B with A.12.00 revision is work fine with the same settings and software Do revision 12.00 have some updates regarding GPIB commands and I have to update my revision or if someone know other software to get the plot down to PC?

    2019-06-25 09:14

  • 请帮我理解戴尔XPS 9570上的“颜色准确度”设置

    toned-down and subdued (you could argue it's, indeed, more accurate) once I enable it but I'd like to know

    2018-10-22 11:36

  • 请问8753A至S参数测试装置的电缆是否需要相位匹配?

    我的一个朋友有一个8753A,带有一个S参数测试装置。有4根短电缆,每端有N个插头,将VNA连接到S参数测试装置。三个人彼此紧密相连,而第四个则在其他三个人的左边。电缆看起来像这样:http://www.ebay.co.uk/itm/320952214556?他有一个间歇性的问题,并怀疑其中一条电​​缆。他们是否需要进行相位匹配 - 如果是这样的话,那么它们是什么样的?这些电缆必须是特定的电气长度吗?我有自己的8753A中的一个,由于像这样的跨大西洋航运包装它的白痴结果相当破碎:http://boxen.math.washington.edu/home/kirkby/damaged-VNA-by-包装不当/运输不良-8753A-and-85046A.jpg我怀疑如果故障发生在eBay上他会买一个,但我很想知道这些电缆是否有什么特别之处。戴夫 以上来自于谷歌翻译 以下为原文A friend of mine has an 8753A, with an S-parameter test set. There are 4 short cables with N plugs on each end which link the VNA to the S-parameter test set. Three are faily close together, and the 4th is a little bit to the left of the other three. The cables look like this: http://www.ebay.co.uk/itm/320952214556? He has an intermittant problem and suspects one of those cables.Do they need to be phase matched - if so, to what tollerence? Do those cables have to be a particular electrical length? I have one of those 8753A's myself, which is rather smashed up due to the result of a moron packing it for transatlantic shipping like this: http://boxen.math.washington.edu/home/kirkby/damaged-VNA-by-inadequate-packaging/badly-shipped-8753A-and-85046A.jpg I suspect he will just buy one from eBay if the fault is with them, but I'm just curious to know whether there is anything very special about those cables. Dave

    2019-07-16 06:30

  • E4418B RF Pwr仪表固件更新问题

    因此,我的“新人”炸了两个旧的功率传感器...公司购买了Agilent N8481A Pwr传感器(1200美元ea),这应该与我们的功率计E4418B配合使用。我需要将我的固件更新到最新版本才能使用它们,已经升级了DSP板(523美元),所以这就是问题 - 即使E4418B有一个RS-232(我们根本不使用GPIB)连接器背部;没有菜单选择可以通过GPIB选择它,即使手册说有。我不想在GPIB PCI板和电缆上花费更多,只是为了简单的固件更新。安装的固件是A1.03.00,我需要最新的A1.09.01手册说菜单=系统/输入 - >远程接口 - >选择接口,应该让我在HPIB或Serial之间进行选择。我的E4418B而不是显示远程接口显示HPIB。任何想法或帮助将不胜感激 以上来自于谷歌翻译 以下为原文So my "new guys" fried two of my old power sensors... Company purchased Agilent N8481A Pwr Sensors($1200 ea), which should work with our power meter E4418B. I need to update my firmware to latest version for them to work, already upgraded the DSP board ($523), so here is the problem- Even though the E4418B has an RS-232 (we don't use GPIB at all) connector on back; there is no menu selection to choose it over GPIB, even though the manual says there is. I don't want to spend more on a GPIB PCI board and cable just for a simple firmware update. Firmware installed is A1.03.00 and I need the latest one A1.09.01The manual says under menus = System/Input -> Remote Interface -> Select Interface, should let me choose between HPIB or Serial. My E4418B instead of displaying Remote Interface shows HPIB. Any ideas or help would be appreciated

    2019-07-10 14:52

  • ISE WEBPack是否足以设计一个中等复杂度的图像处理器

    that cost thousands of dollars. Could anyone argue on that and suggest a good dev. board with reasonable

    2019-03-21 15:04

  • 怎么在VEE中进行VEE编程

    OOness itself. If one wants to argue that VEE introduces it's own type of OOP then that's fine by me

    2019-10-18 14:06

  • 为什么目前没有支持/不能在LE安全连接中配置WorkSun身份验证方法?

    你好,这是我在论坛上的第一个问题,但我敢打赌,它不会是最后一个。在测试在CyrPress网站上的“100天100天”博客中涉及到的与绑定、认证和BLE隐私相关的不同项目(CyBLY-20200—01 BT 4.2模块PSOC创建者4)时,我注意到BLE 3.30组件中可用的安全级别配置选项。与LE安全连接相关的T只提供一个经过验证的变体。这将阻止我配置这两个模块,以便在它们之间使用未经验证的仅工作的配对方法。当我试图在I/O能力中不设置任何输入时,为了强制工作,获取一条警告消息,表示该选项不可用。有什么特别的原因,为什么目前没有支持/不能在LE安全连接中配置WorkSun身份验证方法?谢谢您,扎博 以上来自于百度翻译 以下为原文Hi, This is my my first question in the forums, but I bet it will not be the last one. While testing the different projects available in the "100 projects in 100 days" blog at crypress.com related to bonding, authentication and BLE privacy (withCyBle-202007-01 BT 4.2 modules a PSoC creator 4.0) I noticed that the security level configuration option available in the BLE 3.30 component related to LE Secure Connections only offers an Authenticated variant. This will prevent me from configuring both modules so that an unauthenticated Just Works pairing method is used between them. The moment I try to set No Input No Output in the I/O capabilities, in order to force Just Works, a get a warning message signaling that this option is not available. Is there any particular reason why Just Works unauthenticated method is not currently supported/cannot be configuredin LE Secure Connections the same way it is/can be in LE Legacy Pairing? Thank you, Zabor

    2019-07-02 10:23