CV184x Screen Docking User Guide

Revision History

Revision	Date	Description
1.0	2025/03/31	Initial version

Contents

• 1. Disclaimer
• 2. MIPI DSI
  • 2.1. Environment Preparation
    • 2.1.1. MIPI DSI Panel Interface
    • 2.1.2. Hardware Wiring Check
  • 2.2. Configure the MIPI Panel
    • 2.2.1. Configure the MIPI Panel in u-boot
      • 2.2.1.1. Configure MIPI Tx Device Attributes
      • 2.2.1.2. Configure the Panel Initialization Sequence
      • 2.2.1.3. Add Header File Includes
      • 2.2.1.4. Configure the MIPI Panel RESET Pin
      • 2.2.1.5. Configure the MIPI Panel POWER Pin
      • 2.2.1.6. Configure the MIPI Panel BACKLIGHT Pin
      • 2.2.1.7. Configure u-boot Environment Variables
      • 2.2.1.8. Replace the Logo Image
      • 2.2.1.9. Build, Program, and Verify
    • 2.2.2. Configure the MIPI Panel in the Kernel
      • 2.2.2.1. Configure MIPI Tx Device Attributes
      • 2.2.2.2. Configure the Panel Initialization Sequence
      • 2.2.2.3. Add Header File Includes
      • 2.2.2.4. Configure the MIPI Panel RESET, POWER, and BACKLIGHT Pins
      • 2.2.2.5. Build verification
    • 2.2.3. Configure the MIPI Panel in the Dual-system Environment
      • 2.2.3.1. Configure MIPI Tx Device Attributes
      • 2.2.3.2. Enable the Configuration Switch in cvi_alios
      • 2.2.3.3. Configure the Panel Initialization Sequence
      • 2.2.3.4. Add Header File Includes
      • 2.2.3.5. Configure the MIPI Panel RESET, POWER, and BACKLIGHT Pins
      • 2.2.3.6. Build verification
• 3. LVDS
  • 3.1. Environment Preparation
    • 3.1.1. LVDSpanel interface introduction
    • 3.1.2. Hardware Wiring Check
  • 3.2. Configure the LVDS Panel
    • 3.2.1. Configure in u-boot the LVDS Panel
      • 3.2.1.1. Configure LVDS device attributes
      • 3.2.1.2. Add Header File Includes
      • 3.2.1.3. Configure the LVDS PanelBACKLIGHTpin
      • 3.2.1.4. Configure u-boot Environment Variables
      • 3.2.1.5. Replace the Logo Image
      • 3.2.1.6. Build, Program, and Verify
    • 3.2.2. Configure in the kernelLVDS
      • 3.2.2.1. Configure LVDS device attributes
      • 3.2.2.2. Add Header File Includes
      • 3.2.2.3. Configure the LVDS PanelBACKLIGHTpin
      • 3.2.2.4. Build verification
    • 3.2.3. Configure in the dual-system environmentLVDS
      • 3.2.3.1. Configure LVDS device attributes
      • 3.2.3.2. Enable the Configuration Switch in cvi_alios
      • 3.2.3.3. Add Header File Includes
      • 3.2.3.4. Configure the LVDS PanelBACKLIGHTpin
      • 3.2.3.5. Build verification
• 4. MIPI DSI (starting with SDK V6.3.4)
  • 4.1. Environment Preparation
    • 4.1.1. MIPI DSI Panel Interface
    • 4.1.2. Hardware Wiring Check
  • 4.2. PanelSupportList framework overview
  • 4.3. Configure the MIPI Panel (systemoneflow)
    • 4.3.1. Step 1: writepanelreferenceheader file
      • 4.3.1.1. Naming Rules
      • 4.3.1.2. header filecontenttemplate
      • 4.3.1.3. key data-structure description
      • 4.3.1.4. Initialization Commands
    • 4.3.2. Step 2: Register the panel-parameter header file
      • 4.3.2.1. u-boot / cvi_alios registration method (cvi_panels.h)
      • 4.3.2.2. cvi_mpi registration method (sample_panel.h + sample_panel.c)
    • 4.3.3. Step 3: enable the configuration and build
      • 4.3.3.1. u-boot configuration
      • 4.3.3.2. cvi_alios configuration
      • 4.3.3.3. cvi_mpi configuration
      • 4.3.3.4. build
  • 4.4. RESET / POWER / BACKLIGHT pin configuration
    • 4.4.1. u-boot configuration method (DTS)
    • 4.4.2. cvi_mpi configuration method (manual GPIO)
      • 4.4.2.1. methodone: sample_panel command lineparameter (onlydebuguse, codeinalreadycomment)
      • 4.4.2.2. Method 2: shell manual operation sysfs
    • 4.4.3. cvi_alios configuration method (PLATFORM_PanelInit)
  • 4.5. Replace the Logo image
  • 4.6. Build, Program, and Verify