U-Boot Splash Screen: Difference between revisions
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(Created page with "{{Under Construction}} =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 o...") |
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=Introduction= | =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]]. | 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]]. | ||
{{Under_Construction}} | |||
=Installation= | =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: | |||
<pre class="apf"> | |||
BIOS> setenv videomode video=ctfb:x:800,y:480,depth:18,pclk:33000033,le:8,ri:4,up:2,lo:4,hs:41,vs:10,sync:0,vmode:0 | |||
</pre> | |||
=Test it= | |||
<pre class="apf"> | |||
BIOS> tftpboot ${loadaddr} xxx.bmp | |||
BIOS> bmp info ${loadaddr} | |||
Image size : 296 x 72 | |||
Bits per pixel: 8 | |||
Compression : 0 | |||
</pre> | |||
<pre class="apf"> | |||
BIOS> bmp display ${loadaddr} 100 50 | |||
</pre> | |||
=Deploy it= | |||
<pre class="apf"> | <pre class="apf"> | ||
BIOS> setenv | BIOS> setenv splashimage 0x80000000 | ||
BIOS> setenv splashfile /boot/Logo_800x480.bmp | |||
BIOS> setenv splashsource mmc_fs | |||
</pre> | </pre> | ||
=Links= | =Links= | ||
* http://www.denx.de/wiki/DULG/UBootSplashScreen | * http://www.denx.de/wiki/DULG/UBootSplashScreen | ||
Revision as of 19:40, 11 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.
Page under construction...
Informations on this page are not guaranteed !!
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:33000033,le:8,ri:4,up:2,lo:4,hs:41,vs:10,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
BIOS> setenv splashimage 0x80000000 BIOS> setenv splashfile /boot/Logo_800x480.bmp BIOS> setenv splashsource mmc_fs
