Difference between revisions of "U-Boot Splash Screen"
From ArmadeusWiki
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BIOS> tftpboot ${loadaddr} xxx.bmp | BIOS> tftpboot ${loadaddr} xxx.bmp | ||
| − | BIOS> bmp info ${loadaddr} | + | BIOS> bmp info ${loadaddr} |
Image size : 296 x 72 | Image size : 296 x 72 | ||
Bits per pixel: 8 | Bits per pixel: 8 | ||
Revision as of 17:17, 14 March 2017
Page under construction...
Informations on this page are not guaranteed !!
Introduction
On this page you will learn how to activate LCD support in U-Boot and display a Splash Screen at boot. The following instructions have only be tested on OPOS6UL.
Installation
- Save your image as BMP file (in Gimp use Run-Length (RLE) encoding, no alpha channel and no color informations (compatibility options))
- Activate LCD in U-Boot (here ST0700):
BIOS> setenv videomode video=ctfb:x:800,y:480,depth:18,pclk:33033,le:8,ri:4,up:2,lo:4,hs:64,vs:4,sync:0,vmode:0
Test it
BIOS> tftpboot ${loadaddr} xxx.bmp
BIOS> bmp info ${loadaddr}
Image size : 296 x 72
Bits per pixel: 8
Compression : 0
BIOS> bmp display ${loadaddr} 100 50
Deploy it
- Here we assume that logo is stored in /boot directory of rootfs eMMC partition as logo.bmp:
BIOS> setenv splashimage 0x80000000 BIOS> setenv splashfile /boot/logo.bmp BIOS> setenv splashsource mmc_fs
