GigaDevice Semiconductor GD32 Series, User Manual

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AN050
GD32 USBFS&USBHS Firmware Library User Guide
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Request name value Functional description
GET_PROTOCOL 0x03 Get protocol
SET_REPORT 0x09 Set report
SET_IDLE 0x0A Set idle
SET_PROTOCOL 0x0B Set protocol
HID user interface
HID user interface is enumerated as keyboard, which is shown in below structure.
hid_fop_handler fop_handler = {
. hid_itf_config = key_config ,
. hid_itf_data_process = hid_key_data_send
};
Table 5-22
. HID user interface functions
Function/variable name Functional description
key_config Key configuration
hid_key_data_send Send key value
HID routine operation guide
Download the HID rountine to EVAL board, a newly added HID device is visible in device
manager.As shown in
Figure 5-20. HID device class
.
Figure 5-20. HID device class
Press Wakeup key, output “b”; Press Tamper key, output “a”; Press User key, output “c”. The
below step show how to verify USB remote wakeup function.
1. configure PC to be sleep mode;
2. wait PC host to be sleep mode completely;
3. press wakeup key;
4. if the host is waked up, indicate that remote wakeup function is successful, otherwise it is