Huan.Feng 7b6fc358fa initial buildroot for linux 5.15 2 年 前
..
patches 7b6fc358fa initial buildroot for linux 5.15 2 年 前
extlinux.conf 7b6fc358fa initial buildroot for linux 5.15 2 年 前
flash.sh 7b6fc358fa initial buildroot for linux 5.15 2 年 前
flash_xip.sh 7b6fc358fa initial buildroot for linux 5.15 2 年 前
genimage.cfg 7b6fc358fa initial buildroot for linux 5.15 2 年 前
linux-xip.config 7b6fc358fa initial buildroot for linux 5.15 2 年 前
linux.fragment 7b6fc358fa initial buildroot for linux 5.15 2 年 前
post-build.sh 7b6fc358fa initial buildroot for linux 5.15 2 年 前
readme.txt 7b6fc358fa initial buildroot for linux 5.15 2 年 前
readme_xip.txt 7b6fc358fa initial buildroot for linux 5.15 2 年 前

readme.txt

STM32F469 Discovery
===================

This tutorial describes how to use the predefined Buildroot
configuration for the STM32F469 Discovery evaluation platform.

Building
--------

make stm32f469_disco_defconfig
make

Flashing
--------

./board/stmicroelectronics/stm32f469-disco/flash.sh output/

It will flash the U-boot bootloader.

Creating SD card
----------------

Buildroot prepares an"sdcard.img" image in the output/images/ directory,
ready to be dumped on a SD card. Launch the following command as root:

dd if=output/images/sdcard.img of=/dev/

*** WARNING! This will destroy all the card content. Use with care! ***

For details about the medium image layout and its content, see the
definition in board/stmicroelectronics/stm32f469-disco/genimage.cfg.

Framebuffer
-----------
After Linux boots, /dev/fb0 will be accessible. You can control the
brightness of the display after enabling the framebuffer by running the
following commands:

# echo 0 0 > /sys/class/graphics/fb0/pan
# echo 255 >/sys/class/backlight/40016c00.dsi.0/brightness

The brightness ranges from 0 to 255, as you can see running the
command:

# cat /sys/class/backlight/40016c00.dsi.0/max_brightness