Can nrf52840 communicate with qcom chip through USB HID? Which routine to use?
Hi
Are you looking for the USB HID Sample Application?
Regards,Sigurd Hellesvik
HI ：
At sdk15.3 Which is the HID routine?
Does the HID of nrf52840 support high-speed mode? Have you measured the transmission rate of HID?
In that case, have a look at the HID Mouse Application example from the nRF5 SDK 15.3.0 and the HID Keyboard Application example for the nRF5 SDK 15.3.0.
From the nRF52840, USBD — Universal serial bus device: "The USB device (USBD) controller implements a full speed USB device".
In other words, the USBD of the nRF52840 does not support high speed mode.
I do not know of any HID transmission rate tests we have for HID. But from the nRF52840, USBD — Universal serial bus device: "Full-speed (12 Mbps) "And from Appplication Note, nAN22 - Generic data transfer using USB HID: "Maximum theoretical data transfer rate of 64 kB/s."
