BL808 Custom Lowload

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Revision as of 08:25, 14 May 2023 by Gamiee (talk | contribs) (Restore backup, author: Hunter1753)
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To currently be able to use the peripherals not connected to the core running linux (d0) we have to catch the interrupts on the m0 core. This guide aims to show you how to set up the environment to create custom lowloaders. This setup is straight forward


In order to set up an environment to compile for the BL808 RISC-V chip, you will need to ensure that the following tools and packages are installed on your system:

Source Tools

  • git

Build Tools

  • which
  • sed
  • make (version 3.81 or later)
  • binutils
  • build-essential (only for Debian based systems)
  • diffutils
  • gcc (version 4.8 or later)
  • g++ (version 4.8 or later, mostly installed with gcc)
  • bash
  • patch
  • gzip
  • bzip2
  • perl (version 5.8.7 or later)
  • tar
  • cpio
  • unzip
  • rsync
  • file (must be in /usr/bin/file)
  • bc
  • findutils
  • wget
  • python3

Config Tools

  • ncurses5 (could also be just called ncurses, ncurses-dev, etc.)

Make sure to have all the above tools and packages installed before proceeding with the lowload setup process.


$ pacman -Syu git which sed make binutils diffutils gcc bash patch gzip bzip2 perl tar cpio unzip rsync file bc findutils wget ncurses python3


$ sudo apt update
$ sudo apt install git sed make binutils diffutils gcc g++ bash patch gzip bzip2 perl tar cpio unzip rsync file bc findutils wget libncurses-dev python3

Get Tools and Source

$ cd ~/buildroot_bouffalo/
$ git clone
$ git clone
$ git clone

Setup Toolchain Path

$ PATH=$PATH:$(pwd)/toolchain_gcc_t-head_linux/bin/


$ cd OBLFR/apps/m0_lowload
$ make


The resulting file OBLFR/apps/m0_lowload/build/build_out/m0_lowload_bl808_m0.bin or OBLFR/apps/d0_lowload/build/build_out/d0_lowload_bl808_d0.bin can be flashed like described in Ox64 Flashing