https://devzone.nordicsemi.com/f/nordic-q-a/51298/52840-ep0-pcSDK版本：15.2.0 工程例子：usbd 目的：使用52840 usb ep0端口与pc端进行通信。pc端为host，52840为Device。 pc端使用libusb驱动，自定义通信协议。在usbd_event_handler函数里面通过setup.bmRequest值来判断读写方向。 的判断为pc端接收数据的时候，直接调用 respond_setup_data( p_setup, get_descriptor_report_interface_0, p_setup-&gt;wLengthen-USTelligent Community 13Fri, 23 Aug 2019 01:17:26 GMThttps://devzone.nordicsemi.com/thread/205722?ContentTypeID=1Fri, 23 Aug 2019 01:17:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f552aa45-1f0c-4f72-b49a-6610b397a4b9lyi<p>ok thanks.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/205525?ContentTypeID=1Thu, 22 Aug 2019 10:10:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:eacde0aa-d47a-4590-9bba-49e6f2755315Susheel Nuguru<p>This forum is only in English, so please use English to explain your issue to have any chance of getting a proper reply.</p><div style="clear:both;"></div>