• State Not Answered
  • Locked Locked
  • Replies 6 replies
  • Subscribers 21 subscribers
  • Views 2243 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

LPC1768 RL USB Device HID Class - Data Transfer

Jim Simson

Dear Friends,
I use RL USB HID V 4.22.
I've sent 8bit data to the PC successfully, but I do not have any idea how can I send 12 bits (and even more) data to the PC.
I tried to change the length;

usbd_hid_get_report_trigger(0, buf, 2);

and send data in groups of 8bits separately but I wasn't successful.

Please let me know what should I do?

Thanks

Parents
  • 0 in reply to cOSankalp Agarwal

    I think there should be a problem to send more than one bytes with:

    USBD_HID_GetReportTrigger  (       uint8_t         instance,
                uint8_t         rid,
                const uint8_t *         buf,
                uint32_t        len
        )


    there isn't any access to usb libraries. As I search for "USBD_HID_GetReportTrigger", it can not find the main function.
    When I change the length, cann't receive anything in other side.
    Please help me.

Reply
  • 0 in reply to cOSankalp Agarwal

    I think there should be a problem to send more than one bytes with:

    USBD_HID_GetReportTrigger  (       uint8_t         instance,
                uint8_t         rid,
                const uint8_t *         buf,
                uint32_t        len
        )


    there isn't any access to usb libraries. As I search for "USBD_HID_GetReportTrigger", it can not find the main function.
    When I change the length, cann't receive anything in other side.
    Please help me.

Children