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我试着用B9连接器连接Sn65 HVD1471PIC18F65 K40，按以下图表进行连接。但是我不能得到正确的结果。是否有连接的硬件规范？
以上来自于百度翻译 以下为原文 I'm trying to connect SN65HVD1471 with PIC18F65K40 using db9 connector as per the following diagrams. But i can't get the proper result. Is there any hardware specification to connect? Attached Image(s) 
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8个回答
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图中没有显示PIC，所以不知道你实际上是如何连接它的。你得到了什么结果？如果你详细描述了你所做的，你期望看到的，以及你所看到的，你会更容易回答。
以上来自于百度翻译 以下为原文 There is no PIC shown on either diagram, so it is unknown how you have actually connected it. What result DID you get? It's much easier to answer if you detail what you did, what you expected to see, and what you did see. |
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没有必要看到PIC连接，因为RS422TX和RS422O-RX是从PIC ToNS65 HVD1471连接的唯一引脚，如图所示。四个引脚RS422II+/-RS422OUT+/-只连接到一个连接器部分，通过该连接器部分，需要连接D9连接器。我要问的是，正常的D9引脚是否足以与驱动程序通信？因为我见过更多的引脚连接用RS422与D9连接器。我不知道如何检查PC是否与PIC通过SN65 HVD1471通信。对不起，如果我的语言不清楚。
以上来自于百度翻译 以下为原文 It is not necessary to see the PIC connection because RS422_TX and RS422_RX are the only pins which are connected from PIC to SN65HVD1471 as shown. The four pins RS422_IN +/- and RS422_OUT +/- are just connected to a connector section through which the db9 connector need to be connect. What i'm asking is whether the normal db9 pinout is enough to get communicated with driver? because i've seen many more pinout connection for rs422 with db9 connector. And i don't know how to check whether the PC is communicated with PIC through SN65HVD1471. Sorry if my language is unclear. |
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坏主意，你知道哪些PIC引脚连接这些网。我们不经常，当有人来这里有一个问题，错误是在什么不显示，因为他们认为这是不重要的，这就是他们如何开始在一个地方。我不知道你实际上是问。什么PC？一个普通的Windows PC的串口没有连接到RS422，所以我不能理解你问的是哪种类型的PC。
以上来自于百度翻译 以下为原文 Bad idea to take shortcuts. YOU know which PIC pins you connected those nets to. We don't. More often than not, when someone comes here with a problem, the mistake is in what the DON'T show, because they think it is unimportant, which is how they came unstuck in the first place. I have no idea what you are actually asking. What PC? A normal Windows PC's serial port is NOT wired up for RS422, so I can't understand what sort of PC you are asking about. |
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您的Z输出标记为RS422OUT+，但Z是反相输出。与Y一样。尝试回环测试。将A连接到Y和B到Z。您应该能够使K40发送一个字节并接收它。如果这样做的话，你必须弄清楚什么是“正常RS422dB9”引脚。
以上来自于百度翻译 以下为原文 You have the Z output labeled RS422_OUT+, but Z is the inverting output. Likewise with Y. Try a loopback test. Connect A to Y and B to Z. You should be able to have the K40 transmit a byte and receive it. If that works you'll have to figure out what a "normal RS422 DB9" pinout is. |
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你的第一张图片上的“SD400”标签让我觉得你可能正在尝试连接到一个.HTPSP//opunel.ZeNoDist.COM/HC/EN-U/ToSLe/21632043-WHO to Con构造器RS422-RS85—SD-1400。
以上来自于百度翻译 以下为原文 The "SD4001" label on your first image makes me think maybe you are trying to connect to one of these... https://opengear.zendesk.com/hc/en-us/articles/216372043-How-to-configure-RS422-and-RS485-on-the-SD4001- |
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谢谢大家…正如杰瑞所说，我已经连接了A和B Z。我刚刚连接的TX引脚的D9连接器到RX的驱动IC，反之亦然，短路的AY和B-Z的驱动IC。
以上来自于百度翻译 以下为原文 Thank you all... as jerry said i had connected A-Y and B-Z. I just connected the TX pin of DB9 connector to Rx of driver IC and vice versa, and shorted A-Y and B-Z of driver IC. |
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D9连接器不能直接连接到SN65 HVD1471，因为Db9连接器不具有RS422／485的标准引脚。它需要RS23—RS422／485转换器，因此SN65 HVD147A、B、Y、Z的差分对应该通过转换器连接以与PC通信。
以上来自于百度翻译 以下为原文 DB9 connector cannot be connected directly to SN65HVD1471, because DB9 connector doesnot posses standard pinout for RS422/485. It needs RS232-RS422/485 convertor, hence the differential pair of SN65HVD1471 A,B,Y,Z should be connected though the convertor to communicate with PC. |
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我不知道这是什么意思。D9连接器将具有连接它的任何连接。从我可以看出，问题是在POSTα1中，有65个HVD1471Z信号标示为“RS422OUT+”，Y信号标示为“RS422OU-OUT”，这是向后的。Z是反相输出（RS422OU--），Y是非反相输出（RS422OUT+）。
以上来自于百度翻译 以下为原文 I'm not sure what that means. The DB9 connector will have whatever connections you wire it to have. From what I can tell, the problem is that in post #1 you have the 65HVD1471 Z signal labeled as "RS422_OUT+" and the Y signal labeled as "RS422_OUT-" This is backwards. Z is the inverting output (RS422_OUT-) and Y is the noninverting outout (RS422_OUT+) |
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