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usb_extend_screen

README.md

USB Extension Screen Example

Try with LaunchPad

The USB Extension Screen Example allows the P4 development board to be used as an additional screen for Windows. It supports the following features:

  • Supports a screen refresh rate of 1024*600@60FPS
  • Supports up to five touch points
  • Supports audio input and output

Required Hardware

  • Development Board

    1. ESP32-P4-Function-EV-Board development board
    2. A 1024*600 MIPI screen from the development kit
    3. A speaker

  • Connections

    1. Connect the high-speed USB port on the development board to the PC

Compilation and Flashing

P4 Device Side

Build the project and flash it to the board, then run the monitor tool to view serial output:

  • Run . ./export.sh to set up the IDF environment
  • Run idf.py set-target esp32p4 to set the target chip
  • If there are any errors in the previous step, run pip install "idf-component-manager~=1.1.4" to upgrade your component manager
  • Run idf.py -p PORT flash monitor to build, flash, and monitor the project

(To exit the serial monitor, press Ctrl-].)

Refer to the Getting Started Guide for all steps to configure and use ESP-IDF to build projects.

Note: This example will fetch an AVI file online. Ensure that you are connected to the internet during the initial compilation.

PC Side

For preparation, refer to the windows_driver

Demo

Other Issues

Touch Screen Does Not Control the P4 Screen

  • In the Control Panel, select Tablet PC Settings
  • In the configuration section, select Setup
  • Follow the prompts to choose the P4 extension screen

Adjusting JPEG Image Quality

  • Modify the string_desc_arr vendor interface string in the usb_descriptor.c file. Change Ejpg4 to the desired image quality level; the higher the number, the better the quality, but it will use more memory for the same frame.

Modify Screen Resolution

  • Update the usb_descriptor.c file by changing the string_desc_arr vendor interface string. Modify R1024x600 to the desired screen resolution.

Note: Currently, the driver does not support portrait mode screens. Please use hardware that is designed for landscape orientation.