Difference between revisions of "U-Boot Splash Screen"
From ArmadeusWiki
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(→Deploy it) |
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=Deploy it= | =Deploy it= | ||
| + | * Here we assume that logo is stored in ''/boot'' directory of rootfs eMMC partition as ''logo.bmp'': | ||
<pre class="apf"> | <pre class="apf"> | ||
BIOS> setenv splashimage 0x80000000 | BIOS> setenv splashimage 0x80000000 | ||
| − | BIOS> setenv splashfile /boot/ | + | BIOS> setenv splashfile /boot/logo.bmp |
BIOS> setenv splashsource mmc_fs | BIOS> setenv splashsource mmc_fs | ||
</pre> | </pre> | ||
Revision as of 15:39, 23 January 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:
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
