MCUXpresso_LPC55S69/boards/lpcxpresso55s69/azure_rtos_examples/usbx_device_hid_keyboard/cm33_core0

Overview

This example works as a USB HID device. It will appear as a USB keyboard device on PC.

SDK version

• Version: 2.15.000

Toolchain supported

• IAR embedded Workbench 9.40.1
• Keil MDK 5.38.1
• GCC ARM Embedded 12.2
• MCUXpresso 11.8.0

Hardware requirements

• Two Micro USB cables
• Target Board
• Personal Computer(PC)

Board settings

This example can work with the USB high speed port (P9) or the USB full speed port (P10).

Prepare the Demo

1. Connect a USB Micro cable between the host PC and the Debug Link USB port (P6) on the target board.
2. High speed: Connect a USB Micro cable between the host PC and the on-board USB high speed port (P9). Full speed: Connect a USB Micro cable between the host PC and the on-board USB full speed port (P10).
3. Open a serial terminal on PC with the following settings:
   • 115200 baud rate
   • 8 data bits
   • No parity
   • 1 stop bit
   • No flow control
4. Compile the demo:
   • High speed: Set USB_DEVICE_CONFIG_LPCIP3511FS to 0 and USB_DEVICE_CONFIG_LPCIP3511HS to 1 in usb_device_config.h
   • Full speed: Set USB_DEVICE_CONFIG_LPCIP3511FS to 1 and USB_DEVICE_CONFIG_LPCIP3511HS to 0 in usb_device_config.h
5. Download the program to the target board.
6. Press the on-board RESET button to start the demo.

Running the demo

After writing the program to the flash of the target board, press the reset button on your board to start the demo. The serial port will output:

USBX device HID Keyboard example

Then, connect a USB cable between PC and the USB device port of the board. A HID-compliant keyboard will appear in the Device Manager of Windows and send a key every 2 secondes.

The serial port will output:

HID device activate