Sep 11, 2019
02:15 AM
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Sep 11, 2019
02:15 AM
1 Solution
Sep 11, 2019
02:27 AM
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Sep 11, 2019
02:27 AM
9 Replies
Sep 11, 2019
02:27 AM
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Sep 11, 2019
02:27 AM
OTG引脚用于支持USB OTG,不使用这个引脚可以使其悬空
Sep 11, 2019
02:29 AM
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Sep 11, 2019
02:29 AM
使用,用200欧姆电阻接地和200K电阻接地有什么不同吗?
Sep 11, 2019
02:32 AM
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Sep 11, 2019
02:32 AM
如果您指的是R_usb3这个引脚,要求就是使用200Ω±1%的电阻接,不可以使用其他阻值电阻。
Sep 11, 2019
02:32 AM
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Sep 11, 2019
02:32 AM
不是的 是OTG_ID这个引脚。
Sep 11, 2019
02:37 AM
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Sep 11, 2019
02:37 AM
我之前已经说过了,这个引脚不使用的情况下悬空即可,无需电阻接地
Sep 11, 2019
02:38 AM
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Sep 11, 2019
02:38 AM
悬空和用电阻接地有什么区别吗?
Sep 11, 2019
02:45 AM
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Sep 11, 2019
02:45 AM
在你的USB端口有OTG功能的情况下才需要考虑使用这个引脚。在OTG模式下,如果你需要FX3作为dual-role device,才需要将这个引脚接地。再次强调:不使用的情况下悬空即可。
Sep 11, 2019
02:47 AM
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Sep 11, 2019
02:47 AM
主要是我现在不使用 但是已经用200欧姆电阻下拉接地了? 这有问题吗?
Sep 11, 2019
07:03 PM
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Sep 11, 2019
07:03 PM
应该是没有影响的