How to use SDK15.0 "usbd_hid_composite" example

[powerup]

HI. I used a translator.

I want to control the mouse and keyboard using HID with the nRF52840 PDK.

I found the HID example in SDK15 and compiled it

The Infocenter states that keyboard and mouse control is available via buttons. But nothing happens when you press the button.

Test the USB HID Composite Example application by performing the following steps:
1.Compile and program the application.
2.Connect the development kit to the host computer.
3.The device will enumerate as a HID mouse and a HID keyboard class.
4.Press the buttons on the development kit and observe the results on the host computer and on the LEDs.
5.Press NUMLOCK and CAPSLOCK keys on the keyboard and observe the LEDs state change on the board. 

I checked the terminal.

I am prompted to enter uart_cli command, but I do not know what this is.

Also, nRF52840 is not recognized as an HID device.

How can I control the keyboard and mouse?

Thank you.

---

Is it right to connect to nRF USB?

When I connect to nRF USB, I get a message that the device is not recognized.

What is the use of cli?

Thank you.

[Hung Bui]

Hi Wansu,

 

 How did you test ? You need to connect nRF USB to PC. Which PC did you use ? 

Could you take a photo of your board when you test ? Do you have the same problem when you test with the usbd_hid_generic  ?

CLI is command line interface , used to debug and control the board. Think of it as a logging system in this case. You can open a UART terminal on PC to see the log. The COM port is the port created by the SEGGER chip on the DK. 

 

 

[powerup]

Hi Hung.

I have two nRF52840 PDK boards for V0.9.2 and 2017.2.32.

The PC is using a laptop.

I have tested three examples of "usb_hid_composite", "usbd_hid_generic", and "usbd" of SDK15.0 but all "USB device recognition failure (code 43)" message appears.
I do not know if it is a software problem or a hardware problem.

[Hung Bui]

Hi Gildong, 

 

It's most likely the USB bug on v0.9.2 boards. 

It's similar to this case: https://devzone.nordicsemi.com/f/nordic-q-a/26665/problem-with-usb-dfu-when-rtt-is-disconnected

We will arrange replacement as in your other case.