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嗨，我最近购买了MSOX2012A示波器。
我的主要用途是能够实时可视化并调试包含模数转换器（ADC，A2D ......）的系统。 我需要能够同时看到至少一个模拟信号和至少一个SPI总线。 令我惊讶的是，数字频道根本无法解码。 甚至不支持一种串行协议，这是非常奇怪的，因为任何低级廉价的基于微控制器的逻辑分析仪都可以轻松解码大多数常见的串行信号，如SPI，I2C和UART。 我试过你的“串行解码”插件对我来说没用，它只解码模拟通道，我只有两个模拟通道，我至少需要其中一个用于我的模拟信号。 我知道你的实时串行解码器是在ASIC中实现的，而我的模型只能在模拟通道上使用，但串行数字协议的解码非常简单，并且计算要求低。 大多数现代微控制器都实现了这一功能。 你能实现某种基于软件的，甚至是“离线”（不是在运行模式下）串行解码吗？ 这将节省我切换到另一个范围的麻烦。 现代逻辑分析仪可以解码串行数据。 如果您的产品对大多数现代实施都没用，请不要声称您的产品有逻辑分析仪。 您甚至无法解码经典的8位总线，因为您需要至少两个数字通道用于时钟和启用/ CS信号。 我知道你的3000系列示波器可能会做我需要的但是它要贵得多。 更新：我检查了其他MSO制造商：Tektronix：MSO2012B + DPO2EMBD它（价格相同）Rigol：MSO4012它（价格相同）Hameg：HMO1022 + HO3508 + HOO10有它（价格差不多）Siglent MSO / SDS2102 +功能基因。 +串行解码有它（有点便宜）Lecroy：MS-250 +串行解码选项有它（更贵但更好）所以，实际上只有安捷伦不会在他们的“MSO”上的数字串行通道上触发和解码编辑：David14 on Mar 17,2014 2:54 AM 以上来自于谷歌翻译 以下为原文 Hi, I very recently purchased the MSOX2012A scope. My main intended use is to be able to visualize in real time and debug systems that include analog to digital converter (ADC, A2D...) . I need the ability to see at least one analog signal and at least one SPI bus simultaneously. To my surprise the digital channels cannot be decoded at all. Not even one serial protocol is supported, this is very strange because any low level cheap micro-controller based logic analyzer can easily decode most common serial signals like SPI, I2C and UART. I tried your "Serial Decode" add-on it is useless to me, it only decodes analog channels and I only have two analog channels and I need at least one of them for my analog signal. I know that your real time serial decoder is implemented in the ASIC and on my model is only available on the analog channels, but the decoding of serial digital protocols is very simple and has low computational requirements. Most modern micro-controllers implement this feature. Can you implement some sort of software-based, even "offline" (not in run mode) serial decoding? this will save me the trouble switching to another scope. A modern Logic Analyzer can decode serial data. Please do not claim that your product has a logic analyzer if it is useless for most modern implementations. You cannot even decode a classic 8bit bus because you need at least two more digital channels for the clock and enable/CS signals. I know that your 3000 series scopes can probably do what I need but it is much more expensive. Update: I checked other MSO manufacturers: Tektronix: MSO2012B + DPO2EMBD Has it (about the same price) Rigol: MSO4012 Has it (about the same price) Hameg: HMO1022 + HO3508 + HOO10 Has it (about the same price) Siglent MSO / SDS2102 + function gen. + serial decode Has it (somewhat cheaper) Lecroy: MS-250 + serial decode option Has it (more expensive but better) So, actually only Agilent wont trigger and decode on digital serial channels on their "MSO" Edited by: David14 on Mar 17, 2014 2:54 AM 
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我相信这条消息可能是通过论坛的“私信”发送的。
人 以上来自于谷歌翻译 以下为原文 I believe the message was probably sent through the Forums 'private message' venue. Al |
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我刚刚发现了同样的问题。
这个帖子的解决方案是什么？ 我有一台启用了串行解码的Keysight MSO-X 2012A。 但串行解码只能通过两个模拟通道工作！ 我已经为8个数字频道付了额外费用。 我的目的是使用4个数字通道进行SPI解码，使用两个模拟通道进行模拟信号。 有没有办法将数字输入用作逻辑分析仪？ 此刻感觉有点误导，因为产品文献中没有明确说明！ 以上来自于谷歌翻译 以下为原文 I have just discovered this exact same problem. What was the resolution to this thread? I have a Keysight MSO-X 2012A with serial decoding enabled. But serial decoding only works through the two analogue channels! I have paid extra for the 8 digital channels for nothing. My intention was to use 4 of the digital channels for SPI decoding, and the two analogue channels for my analogue signals. Is there no way to use the digital inputs as a logic analyser? Feeling a bit misled at the moment, since this isn't made clear in the product literature! |
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Hi Steven，虽然InfiniiVIsion X3000A / T系列示波器确实能够利用模拟和数字通道进行串行调试，但X2000A只能使用其模拟通道，并在2000年X系列数据表的第2页中有说明
。 这是为了生产低成本示波器而进行的设计权衡，仍然提供串行解码功能。 对于由此造成的任何混淆，我深表歉意。 我希望这有帮助。 如果您有其他问题，请随时与我们联系。 小心，大卫 以上来自于谷歌翻译 以下为原文 Hi Steven, Although the InfiniiVIsion X3000A/T series scopes do provide the ability to utilize both the analog and digital channels for serial debug, the X2000A can only use its analog channels, and is stated on Page 2 of the 2000 X-Series data sheet. This was a design trade-off made to produce a lower-cost scope that still provides serial decode functionality. I apologize for any confusion this has caused. I hope this helps. Please feel free to contact us if you have additional questions. Take care, David |
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谢谢大卫。
我现在在数据表上看到，2000 X系列表中的“串行协议分析”条目旁边有一个星号。 http://literature.cdn.keysight.com/litweb/pdf/5990-6618EN.pdf“数字通道和串行协议分析不能在2000 X系列上同时使用”我可以建议在将来的数据表修订版中 有些东西直接添加到表格中，而不是依赖于小字体。 像“仅使用模拟输入”而不仅仅是“是”这样的东西，所以很清楚它是如何工作的。 显然，双通道的示波器无法完全显示四通道SPI总线，因此它仍然具有误导性。编辑：StevenHale于2015年6月30日凌晨2:12 以上来自于谷歌翻译 以下为原文 Thanks David. I see now on the datasheet there is an asterisk next to the "serial protocol analysis" entry in the table for the 2000 X-Series. http://literature.cdn.keysight.com/litweb/pdf/5990-6618EN.pdf "The digital channels and serial protocol analysis cannot be used simultaneously on 2000 X-Series" Can I suggest that in future revisions of the datasheet that something is added directly in the table itself, rather than relying on the small-print. Something like "Using analogue inputs only" rather than just "yes" so it is clear how it works. Clearly a two-channel 'scope can not fully display a four-channel SPI bus, so it's still rather misleading. Edited by: StevenHale on Jun 30, 2015 2:12 AM |
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烈阳异丙醇 发表于 2019-1-8 13:24 您好，因为我也是DSOX 2012A的幸运拥有者，我必须补充一点，SPI（3线和4线）不可能在此范围内。 如果您打算使用解码功能，则只能将SPI映射到通道1和2（SPI 2线）。 如果我使用4线SPI的数字输入，我没有SPI解码功能。 我在这里想念一下吗？ 问候，丹 以上来自于谷歌翻译 以下为原文 Hello, As I'm also the lucky owner of a DSOX 2012A, I have to add that SPI(3 and 4 wire) is impossible to have on this scope. You can map the SPI only to channel one and two(SPI 2 wire) in case you plan to use the decoding feature. If I use the digital inputs for the 4 wire SPI I have no SPI decoding feature. Do I miss something here ? Regards, Dan |
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dahairenlyy 发表于 2019-1-8 13:34 回答了几条回复：“尽管InfiniiVIsion X3000A / T系列示波器确实能够利用模拟和数字通道进行串行调试，但X2000A只能使用其模拟通道，并在第2页中说明了 2000 X系列数据表。这是为了生产低成本示波器而进行的设计权衡，仍然提供串行解码功能。我为此造成的任何混乱道歉。“ 人 以上来自于谷歌翻译 以下为原文 This was answered a few replies back: "Although the InfiniiVIsion X3000A/T series scopes do provide the ability to utilize both the analog and digital channels for serial debug, the X2000A can only use its analog channels, and is stated on Page 2 of the 2000 X-Series data sheet. This was a design trade-off made to produce a lower-cost scope that still provides serial decode functionality. I apologize for any confusion this has caused." Al |
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