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K230 Linux SDK

This document uses the k230d_canmv_defconfig configuration as an example. If you use other configurations, replace k230d_canmv_defconfig with correct names. All the configurations supported by this sdk, can be found in buildroot-overlay/configs directory.

Install toolchain and dependencies

download Xuantie-900-gcc-linux-6.6.0-glibc-x86_64-V2.10.1-20240712.tar.gz toolchan from https://www.xrvm.cn/community/download?id=4333581795569242112 uncompress the toolchain to the /opt/toolchain(Refer command):

mkdir -p /opt/toolchain;
tar -zxvf Xuantie-900-gcc-linux-6.6.0-glibc-x86_64-V2.10.1-20240712.tar.gz -C /opt/toolchain;

install dependencies(Refer command):

apt-get install -y   git sed make binutils build-essential diffutils gcc  g++ bash patch gzip \
        bzip2 perl  tar cpio unzip rsync file  bc findutils wget  libncurses-dev python3  \
        libssl-dev gawk cmake bison flex  bash-completion

k230d_canmv_ilp32_defconfig required ubuntu 22.04 or 24.04 and install rv64ilp32 toolchain(refer command):

wget -c https://github.com/ruyisdk/riscv-gnu-toolchain-rv64ilp32/releases/download/2024.06.25/riscv64ilp32-elf-ubuntu-22.04-gcc-nightly-2024.06.25-nightly.tar.gz;

mkdir -p /opt/toolchain/riscv64ilp32-elf-ubuntu-22.04-gcc-nightly-2024.06.25/; 》 tar -xvf riscv64ilp32-elf-ubuntu-22.04-gcc-nightly-2024.06.25-nightly.tar.gz -C /opt/toolchain/riscv64ilp32-elf-ubuntu-22.04-gcc-nightly-2024.06.25/;

build

make CONF=k230d_canmv_defconfig #build k230d canmv image (kernel and rootfs both 64bit);
# make CONF=k230_canmv_defconfig # build k230 canmv image
# make CONF=k230d_canmv_ilp32_defconfig  #build k230d canmv 32bit rootfs;
# make help # view help

BR2_PRIMARY_SIT configuration primary download site for example: make CONF=k230d_canmv_defconfig BR2_PRIMARY_SITE=https://ai.b-bug.org/~/wangjianxin/dl/

output

output/k230d_canmv_defconfig/images/sysimage-sdcard.img.gz

Note that k230d_canmv_defconfig is an example and needs to be replaced with the correct name uncompress file , burn to tf card,insert tf to device, poweron device.

uboot

make uboot-rebuild #rebuild uboot
make uboot-dirclean #uboot clean
#uboot directory description
buildroot-overlay/boot/uboot/u-boot-2022.10-overlay/  #uboot overlay code
output/k230d_canmv_defconfig/build/uboot-2022.10/ #uboot full code,uboot build dir

linux

make linux-menuconfig #modify configuration
make linux-savedefconfig #save to defconfig

make linux-rebuild  #rebuild linux
make linux-dirclean #linux clean

linux source code can be specified using the LINUX_OVERRIDE_SRCDIR macro,for example: echo LINUX_OVERRIDE_SRCDIR=/home/wangjianxin/t/linux-xuantie-kernel >output/k230d_canmv_defconfig/local.mk

buildroot

make menuconfig #buildroot(sdk) modify configuration
make savedefconfig #buildroot(sdk) savedefconfig

ai_demo

ai demo usage guide