nRF52840 USB HOST OUT ACKing

[Aylik]

Hi All!

I use Example Project from SDK: "examples\peripheral\usbd\" as reference to implement my HID device simple protocol (EP1IN / EP1OUT  64bytes)

The Question is how to sent ACK/NACK/STALL for USB protocol OUT stage after I receive "NRF_DRV_USBD_EVT_EPTRANSFER" Event ?

when i accept NRF_DRV_USBD_EVT_EPTRANSFER success, PC (HOST) should to received ACK/NACK or STALL from DEvice , but now PC (HOST) side goes to HUNG state. because seems no ACK/NACK frame send from Device.

the CODE:

    case NRF_DRV_USBD_EVT_EPTRANSFER:
        if (NRF_DRV_USBD_EPOUT1 == p_event->data.eptransfer.ep)
        { // RECEIVED OK!
            muENV.cnt_ep1_out++;   // debug counter
        	muENV.ep1out_rcvd = 1; // OK flag
        	// ... how to send ACK/NACK/STALL ???
        }
        //...
    break;
    

Thanks you!

[Aylik]

I solved it  here

https://devzone.nordicsemi.com/f/nordic-q-a/30738/nrf52840-usb-epout-data-buffer

if any question, I cand send all source of Project include PC app.

[atong]

hello,can i get your source of Project include PC app?I use the sdk15.0,the divice enter suspend  can not wake up.