This project provides Buildroot configuration and scripts to generate a custom Embedded Linux Image for a Raspberry PI 3.

Open a terminal in the raspberry-pi-3_embedded-linux directory and follow these steps to build a basic image for the Raspberry PI 3.

1. Change the following scripts to executables:

   $ chmod +x setup-env.sh build.sh run-emu.sh

2. Get all the sources needed to build the image and configure buildroot by typing:

   $ ./setup-env.sh

1. Now we can build the rpi 3 image by typing:

   $ ./build.sh make

If any error occurred on the build, open the build.log in the buildroot directory.

2. Build the fbcp binary to enable the /dev/fb1 to display the content in the LCD screen:

   "$ build.sh fbcp"

3. Copy the fbcp and additionals files to the sdcard.img created by buildroot to enable the 3.5" SPI LCD screen.

   $ ./build.sh cp2sd

4. Insert the sdcard and flash the rpi3 image:

   $ ./build.sh flash /dev/mmcblk0

The flash command will format the sdcard to FAT32 before flashing, so you don't have to manually format the sdcard. Important: Do not use /dev/mmcblk0p1, it won't work.

1. Now you can insert the sdcard in the raspberry pi 3 with the 3.5 LCD screen and power it up.

The following message should appear:

"Welcome to Embedded linux on Raspberry Pi 3!"

2. Login to the raspberry:

   $ rpi login: root $ password: rpi3

1. Wifi firmware fix: http://lists.busybox.net/pipermail/buildroot/2016-April/159688.html

2. TFT screen and fbcp setup: https://github.com/recalbox/recalbox-os/wiki/TFT-Screen-SPI-Bus-%28EN%29

3. Connect to a wifi network: http://linuxcommando.blogspot.com/2013/10/how-to-connect-to-wpawpa2-wifi-network.html

   http://recalbox-wiki-rtfd.readthedocs.io/en/4.0/EN/Utility---Use-of-fbcp-for-small-TFT-screen-(EN)/

   https://delog.wordpress.com/2014/10/10/wireless-on-raspberry-pi-with-buildroot/

4. Hotspot:

   https://frillip.com/using-your-raspberry-pi-3-as-a-wifi-access-point-with-hostapd/

   https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=141807