7. Modify startup logo

When the board is powered on, if there is a connection screen, the LubanCat logo will be displayed on the screen. If you want to modify the startup logo, you can follow the steps below.

7.1. Prepare a picture

Select the logo image you want to modify. For example, here is the LubanCat logo as an example.

Set the background color of the image to a transparent background color, convert the format to 8bit or 24bit bmp format, modify the image resolution and screen display ratio, and control the image size to about 500KB.

注解

If the image resolution is larger than the screen display resolution, the image will be automatically compressed without changing the aspect ratio.

7.2. Replace the original logo file

1. After the conversion is completed, we will rename the obtained bmp format file to logo.bmp and replace the original logo.bmp file in the kernel directory of the SDK project. This completes the replacement of the startup logo.

2、Recompile the entire image and burn it to the board.

• Debian image and Ubuntu image can directly replace /boot/logo.bmp on the board with burned image to update the startup logo.

• The startup information output to tty1 is enabled by default, and the startup information will be displayed on the screen. If you want to turn off the output, modify the bootargs variable in /boot/uEnv.txt and delete console=tty1.

• When using the device tree plug-in to open the screen, since the logo is displayed before the device tree plug-in is loaded, the logo will not be displayed during the startup process.