buildroot

History

Dario Binacchi 494807e28d configs/stm32f4{2\|6}9_*_defconfig: rename configurations Rename the configuration to explicitly distinguish between sd and xip. As a result, the readme files have also been changed. Signed-off-by: Dario Binacchi <dariobin@libero.it> Acked-by: Christophe Priouzeau <christophe.priouzeau@foss.st.com> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>		2021-12-17 22:58:12 +01:00
..
extlinux.conf	configs/stm32f469_disco: fix kernel bootup	2021-06-16 23:09:34 +02:00
flash_sd.sh	configs/stm32f4{2\|6}9_*_defconfig: rename configurations	2021-12-17 22:58:12 +01:00
flash_xip.sh	configs/stm32f469_xip_disco: fix kernel bootup	2021-12-17 22:58:11 +01:00
genimage.cfg	board/stmicroelectronics/stm32f469-disco/genimage.cfg: beautify file	2021-11-08 22:59:34 +01:00
linux-sd.fragment	configs/stm32f4{2\|6}9_*_defconfig: rename configurations	2021-12-17 22:58:12 +01:00
linux-xip.config	configs/stm32f469_xip_disco: fix kernel bootup	2021-12-17 22:58:11 +01:00
post-build.sh	configs/stm32f469_disco: fix kernel bootup	2021-06-16 23:09:34 +02:00
readme.txt	configs/stm32f4{2\|6}9_*_defconfig: rename configurations	2021-12-17 22:58:12 +01:00
readme_xip.txt	configs/stm32f4{2\|6}9_*_defconfig: rename configurations	2021-12-17 22:58:12 +01:00

readme.txt

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

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

Building
--------

  make stm32f469_disco_sd_defconfig
  make

Flashing
--------

  ./board/stmicroelectronics/stm32f469-disco/flash_sd.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/<your-sd-device>

*** 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