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想配置AM335x处理器usb0的device功能,但id引脚接地了,还有救吗?



请教各位,

我们计划用am335x的usb0的device功能,连接电脑,使用ethernet gadget方式和电脑通讯。按照TI教程processors.wiki.ti.com/.../UsbgeneralpageLinux-v3p1 ethernet gadget网络设备,在linux端ping usb0同网段的地址,usb0网口发包数也为0。

实在没有头绪了,检查硬件,发现usb0的id引脚接地了。学习后了解到,id引脚应该是悬空的,才能作为device模式。

请问是这样吗、还有救么?