Use the following command to convert the PNG image to BPM. As an example, a 324 x 64 pixels image was created, configured as seen in the picture below: Splashtop remote access is 1 in user satisfaction. i displayed a logo 1280x300 in u-boot based on link ( but if i use more then 1280x300 pixel image. Fast and secure solutions for remote work, remote support, remote learning, and more at the best value. Creating a Custom Logo with GIMPĬreate a new file in GIMP and choose a dimension multiple of 8. Part Number: AM3351 Tool/software: Linux Hi, i am using ti-processor-sdk-04.01.00.06. This article has been written with the customization of the Toradex Reference Images for Yocto Project in mind. See below the modules that support U-Boot splash screen: Colibri VF50 Colibri VF61 Colibri iMX6 Colibri iMX7 Apalis iMX6.
U boot splash code#
Toradex Reference Images for Yocto Project All the code below is based on Processor Linux SDK 03.02.00.05. This is debug output in u-boot while starting: Display: 640x240 (640x240) ipuclk 260000000 ldbclk 65000000 read BSCLKGEN0 div:0. usb start load usb 0:1 92000000 logo.bmp bmp d 92000000 - displays my picture on screen cp.b 92000000 41F80000 3656856 setenv splashimage 41F80000 saveenv and here i have error that emmc0 is unreachable. i did next: press Space before loading kernel. I have above timings in kernel device tree so display and also kernel splash screen is working when linux is booting. As i understand, first of all i need to activate splashscreen in uboot loader. We do support custom splash screen on TorizonCore as early as the initramfs is loaded, see the article Splash Screen Customization on TorizonCore for more details. After setting panel640x240 environment variable in U-boot still nothing gets displayed. Although the instructions provided in this article might work, Toradex does not encourage you to re-build the components of TorizonCore from the source.
1.1.1Using your own LVDS LCD screen There is support for the three different 800x480 LCD screen types that Variscite uses. In case the rootfs is a UBIFS, mounting it in order to load the splash file will add 1.8 seconds to the boot time. splashenablesetenv splashfile /boot/splash.bmp setenv splashimage. The splash image will be taken from whichever rootfs that is going to be mounted later at boot. The customization of the bootloader splash screen on Torizon is currently not covered as a use case. I now managed to boot the UBoot SPL and UBoot but it cannot load the Kernel. Also, I identified LCD VSync, HSync, PCLK, DE control signal output. I identified backlight turn-on and SPI data transfer for LCD init. I use 240 X 320 16bit TFT LCD drive of ILI9341V Chip. Here we assume that logo is stored in /boot directory of rootfs eMMC partition as logo.If U-Boot supports the framebuffer, U-Boot can be used to display a splash screen or a custom company logo. My U-boot Version is u-boot-2014.07+gitAUTOINC+fb6ab76dad-gfb6ab76.
U boot splash driver#
If the RLE option is grayed out, go to Image > Mode and select Indexed.)īIOS> 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 that driver has been around for a while (it's the one i used in my previous u-boot) the code I'm looking at just now is based on v2020.01 and if I compile in CONFIGAM335XLCD it starts looking for structures/definitions that have been elided in other platforms by CONFIGDMVIDEO (e.g in lcd.
Save your image as BMP file (in Gimp use Run-Length (RLE) encoding, no alpha channel and no color informations (compatibility options).Note: The following instructions have only be tested on OPOS6UL. In raspberry pi there is an option to add a boot splash screen, looking in this forum I havent found and instructions or if it is even possible. Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the Linux kernel and other low-level projects in C/C++ (bootloaders.
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