Audio-Injector/buildroot.audioinjector

Installation

Erasing MMC

First we need to delete the content of the eMMC on the radxa zero. We first install the following

sudo pip3 install pyamlboot

Then connect the board while pressing and holding the USB BOOT button on the back of the board (for more information check https://wiki.radxa.com/Zero/dev/maskrom). You can then run lsusb to confirm the device is indeed in maskrom mode:

Bus 001 Device 048: ID 1b8e:c003 Amlogic, Inc. GX-CHIP

After that you run

wget https://dl.radxa.com/zero/images/loader/radxa-zero-erase-emmc.bin
sudo boot-g12.py radxa-zero-erase-emmc.bin

in order to erase the eMMC so the board boots from the SD card.

Building the SD card linux image

Make sure to have available the latest version of Buildroot somewhere:

git clone --depth 1 https://github.com/buildroot/buildroot.git

Then, within this repo you should run

./setup.zero.sh ${buildroot_repo_path}
cd ${buildroot_repo_path}
 make

Finally, to burn the resulting image:

sudo dd if=output/images/sdcard.img of=${path_to_your_sdcard} conv=fsync,notrunc bs=10M status=progress