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POV_ (10.07.2020 11:54, просмотров: 10) ответил Aleksey_75 на какой стек пользуешь ? какая либа в примере ? искать функцию usb_io_mode она вызывается из usbd_core.c
USB-FS от TI... 

Прерываний по USB нет.

[ 4325.900682] usb 1-7.3: new full-speed USB device number 73 using xhci_hcd [ 4326.100705] usb 1-7.3: device descriptor read/64, error -32 [ 4326.408563] usb 1-7.3: device descriptor read/64, error -32 [ 4326.716665] usb 1-7.3: new full-speed USB device number 74 using xhci_hcd [ 4326.916691] usb 1-7.3: device descriptor read/64, error -32 [ 4327.224604] usb 1-7.3: device descriptor read/64, error -32 [ 4327.332686] usb 1-7-port3: attempt power cycle [ 4328.036633] usb 1-7.3: new full-speed USB device number 75 using xhci_hcd [ 4328.036757] usb 1-7.3: Device not responding to setup address. [ 4328.244730] usb 1-7.3: Device not responding to setup address. [ 4328.452483] usb 1-7.3: device not accepting address 75, error -71 [ 4328.652478] usb 1-7.3: new full-speed USB device number 76 using xhci_hcd [ 4328.652592] usb 1-7.3: Device not responding to setup address. [ 4328.860721] usb 1-7.3: Device not responding to setup address. [ 4329.068464] usb 1-7.3: device not accepting address 76, error -71 [ 4329.068553] usb 1-7-port3: unable to enumerate USB device