[nRF52840] USB Vendor Specified Interface Class

RE: [nRF52840] USB Vendor Specified Interface Class

Andre — Thu, 18 Jan 2018 17:05:43 GMT

I now have this for reception of data, seems to work fine

    case NRF_DRV_USBD_EVT_EPTRANSFER:
    	if (NRF_DRV_USBD_EPOUT1 == p_event->data.eptransfer.ep) {
    			static uint8_t receive_buffer[64];
    			static nrf_drv_usbd_ep_transfer_t usb_tranfer;
    		if (NRF_USBD_EP_WAITING == p_event->data.eptransfer.status) {
    				usb_tranfer.p_data.rx = receive_buffer;
    				usb_tranfer.size = 64;
    				int ret = nrf_drv_usbd_ep_transfer(p_event->data.eptransfer.ep, &usb_tranfer);
    
    		} else if (NRF_USBD_EP_OK == p_event->data.eptransfer.status) {
    			size_t size = 0;
    			nrf_drv_usbd_ep_status_get(p_event->data.eptransfer.ep, &size);
    				printf("Received %d bytes:\n", size);
    				for (int i = 0; i < size; i++) printf("0x%02X ", receive_buffer[i]);
    				printf("\n");
    		} else {
    			printf("Transfer failed on EPOUT1: %d\n", p_event->data.eptransfer.status);
    		}
    	}

...

RE: [nRF52840] USB Vendor Specified Interface Class

Andre — Thu, 18 Jan 2018 15:30:32 GMT

I have my Vendor Class USB Descriptors with BOS and MSOS20 Descriptors implemented. The device enumerates correctly under Windows 10. However, how should I implement Endpoint OUT (PC to Microcontroller) transfers? More specifically, at which point should I do the nrf_drv_usbd_ep_transfer call for my OUT endpoint?

RE: [nRF52840] USB Vendor Specified Interface Class

Andre — Thu, 18 Jan 2018 10:51:41 GMT

I must have overlooked that example. I'm working on a test code derived from that example now. Thank you.

RE: [nRF52840] USB Vendor Specified Interface Class

Jørgen Holmefjord — Wed, 17 Jan 2018 15:56:59 GMT

Have you looked at the USB device example in the SDK? This example use the USB HAL and driver to emulate a HID mouse device. Or did you only want to use app_usbd library?