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readme.md

M1s_BL808_example

Setup

  1. Download sdk

    mkdir ~/bl808 && cd ~/bl808
git clone https://github.com/sipeed/M1s_BL808_SDK.git

  2. Download example

    cd ~/bl808
git clone https://github.com/sipeed/M1s_BL808_example.git
cd M1s_BL808_example && ln -s ../M1s_BL808_SDK ./

  3. Download toolchain here or here. Extract it to M1s_BL808_SDK/toolchain/ and rename to Linux_x86_64

    cd ~/bl808 && mkdir M1s_BL808_SDK/toolchain

mv {your_download_path}/Xuantie-900-gcc-elf-newlib-x86_64-V2.6.0-20220715.tar.gz ~/bl808
tar -zxvf Xuantie-900-gcc-elf-newlib-x86_64-V2.6.0-20220715.tar.gz -C M1s_BL808_SDK/toolchain/

cd M1s_BL808_SDK/toolchain && mv Xuantie-900-gcc-elf-newlib-x86_64-V2.6.0/ Linux_x86_64 && cd -

  4. Build the hello_world example

    cd ~/bl808/M1s_BL808_example/c906_app/

# Configure environment variables (Executed only once per working environment)
export BL_SDK_PATH=../M1s_BL808_SDK

# Compile the hello_world project
./build.sh hello_world

  5. The compilation is complete, and the target file is saved in the build_out path

Flash Guide

  1. Download flash tool and startup

    Go to bflb_dev_website and download Bouffalo Lab Dev Cube released on 2022-09-01 and with version v1.8.0

    # unzip
unzip BouffaloLabDevCube-v1.8.0.zip

# startup
./BLDevCube-v1.8.0/BLDevCube-ubuntu &> /dev/null &

  2. Download bl808 firmware

    • Use the type-c usb cable to connect from the PC side to the UART port of the board

    • Keep the BOOT button pressed and click RST button, then release the BOOT button

    • Startup BLDevCube Tools and choose BL808 chip

    • Configure the tool according to the label below, finally click Create & Download will start to download firmware

      image-20221018233328391

  3. Download bl702 firmware

    • Press the BOOT button, and connect the type-c cable to the UART port, then release the BOOT button

    • Startup BLDevCube Tools and choose BL702/704/706 chip

    • Configure the tool according to the label below, finally click Create & Download will start to download firmware

      ![image-20221018233819623](assets/ image-20221018233819623.png)

  4. Download e907 firmware

    • Use the type-c usb cable to connect from the PC side to the UART port of the board

    • Keep the BOOT button pressed and click RST button, then release the BOOT button

    • Startup BLDevCube Tools and choose BL808 chip

    • Configure the tool according to the label below, finally click Create & Download will start to download firmware

      image-20221109200656

  5. About partition table files

    The partition table of bl808 is written in toml file format. You can specify the flash size used by the firmware by modifying the partition table.

    The default partition table is provided in the M1s_BL808_example/partition directory, and you can also create your own partition table.