Thanks, when I posted my last comment I did not see you posted this. It is clear to me now, some HID device MAY have the bulk in pipe, but this is clearly not the case for our. Here is what I read in the USB_descriptor.c file:
/* HID Class-Specific Descriptor */
0x09,//sizeof(USB_HID_DSC)+3, // Size of this descriptor in bytes
DSC_HID, // HID descriptor type
0x11,0x01, // HID Spec Release Number in BCD format (1.11)
0x00, // Country Code (0x00 for Not supported)
HID_NUM_OF_DSC, // Number of class descriptors, see usbcfg.h
DSC_RPT, // Report descriptor type
HID_RPT01_SIZE,0x00,//sizeof(hid_rpt01), // Size of the report descriptor
/* Endpoint Descriptor */
0x07,/*sizeof(USB_EP_DSC)*/
USB_DESCRIPTOR_ENDPOINT, //Endpoint Descriptor
HID_EP | _EP_IN, //EndpointAddress
_INTERRUPT, //Attributes
0x40,0x00, //size
0x01, //Interval
/* Endpoint Descriptor */
0x07,/*sizeof(USB_EP_DSC)*/
USB_DESCRIPTOR_ENDPOINT, //Endpoint Descriptor
HID_EP | _EP_OUT, //EndpointAddress
_INTERRUPT, //Attributes
0x40,0x00, //size
0x01 //Interval
};
It is clear that only Interrupt is described. My questions are:
- If we modify this and add the endpoint descriptor for bulk in pipe, will it work, or simply this PIC does not support this pipe?
- If not and I have to use interrupt, how can I enable the interrupt not to get a timeout error when attempting to use the labvew example?
Thanks and sorry, it's the first time I work with USB protocol, and it seems to me very hard to understand and I am not at all a software engineer
