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大家好,我想让我自己的主板上的计算机模块V3,我想使用LAN9514的USB和以太网,但我遇到了一个问题,在我的情况下,我必须插入USB上游在LAN9514启用以太网,虽然我只需要以太网。当我插入USB上游消费LAN9514的G电流被改变,以太网被启用,但是当USB上行未***入时,以太网被禁用,LAN9514的消耗电流较低,这是否可能使用以太网而不插入USB?什么是我的错?请帮助我问候
以上来自于百度翻译 以下为原文 Hello Everyone I am trying to make my own board to host the Computer Module V3, and I would like to use the LAN9514 for USB and Ethernet but I faced a problem In my case, I have to plug in USB Upstream in LAN9514 to Enable Ethernet, though I need only Ethernet.when I plug in USB Upstream the consuming current of LAN9514 is changed and the Ethernet is enabled but when the USB Upstream is not plugged in, the Ethernet is disable and the consuming current of LAN9514 is low, Is this possible to use the Ethernet without plug in USB? what is my wrong? Please help me best regards |
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2个回答
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MSH,我不遵循您的问题。主机(V3)& GT;USB电缆& GT;and LAN9514>以及以太网和USB下行端口。主机需要启动和运行。LAN9514需要电源来运行USB端口和以太网(确保5V保持在5V)。只有一个5V@ 1AMP电源。这足以给PI供电,而且你会看到USB端口被枚举,但是一旦以太网运行起来,它消耗了太多的电源,导致电路板重置。通过使用更大的电源(5V2.5AMPS)解决了这一问题。我不记得确切的功耗,但值得一看。如果你只需要以太网,LAN9500 A是一个很好的解决方案,但我通常使用LAN9512或LAN9514那些额外的两个或四个USB端口。
以上来自于百度翻译 以下为原文 MSH, I do not follow your question. Host Computer (V3) >> USB cable >> LAN9514 >> Ethernet & USB Down Stream Ports. The host needs to be up and running. The LAN9514 needs power to run both USB Ports and Ethernet (Make sure 5V remains at 5V). I've seen issues with a Raspberry Pi that only have a 5V @ 1Amp power supply. It was enough to power the PI, and you would see the USB Ports Enumerated, but once the Ethernet was up and running it consumed too much power, causing the the board to reset itself. That was resolved by using a larger power supply (5V @ 2.5Amps). I do not remember the exact power consumption, but something worth looking at. If you only needed Ethernet, the LAN9500A is a good solution, but I usually use a LAN9512 or LAN9514 for those additional two or four USB ports. |
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HiroundrocktomThank你因为你的时间和注意力
以上来自于百度翻译 以下为原文 Hi roundrocktom Thank you because of your time and attention | |
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