Jetson 编译Xavier NX 编译

在官网下载对应的Linux_for_Tegra开发包：两种方式

1：SDK Manager

2：直接下载两种方式来获得源码。具体参考官方文档，此处不再赘述。

得到 Jetson_Linux_R32.6.1_aarch64.tbz2跟Tegra_Linux_Sample-Root-Filesystem_R32.6.1_aarch64.tbz2

通过脚本代码：

#!/bin/bash
echo "========THIS IS JETSON-nano/tx,xavier agx costom board install program========"
echo "===================Only for L4T_R32.6.1!====================="
sudo tar  -xvjf Jetson_Linux_R32.6.1_aarch64.tbz2
cd Linux_for_Tegra/rootfs 
sudo tar -xpjf ../../Tegra_Linux_Sample-Root-Filesystem_R32.6.1_aarch64.tbz2
cd .. 
sudo ./apply_binaries.sh

解压成Linux_for_Tegra文件夹下一步

使用SDK Manager时同步代码采用如下指令：

- Jetpack4.2.2

./source_sync.sh -t tegra-l4t-r32.2.1

- Jetpack4.3

./source_sync.sh -t tegra-l4t-r32.3.1

- Jetpack4.4

./source_sync.sh -t tegra-l4t-r32.4.3

- Jetpack4.4.1

./source_sync.sh -t tegra-l4t-r32.4.4

- Jetpack4.5

./source_sync.sh -t tegra-l4t-r32.5

- Jetpack4.5.1

./source_sync.sh -t tegra-l4t-r32.5.1

- Jetpack4.6

./source_sync.sh -t tegra-l4t-r32.6.1

- Jetpack4.6.1

./source_sync.sh -t tegra-l4t-r32.7.1

• 配置开发环境

以下步骤假设SDK安装目录为<TOPDIR>，源代码在$L4T_DIR/sources目录。

export TOP_DIR=<absolute path to top dir accroding to your jetpack version and board name;for example /home/xumm/nvidia/nvidia_sdk/JetPack_4.5_Linux_JETSON_XAVIER_NX_DEVKIT/>

- 通用部分

export L4T_DIR=$TOP_DIR/Linux_for_Tegra

export LOCALVERSION=-tegra

export LDK_ROOTFS_DIR=$TOP_DIR/Linux_for_Tegra/rootfs

export ARCH=arm64

export CROSS_COMPILE=aarch64-linux-gnu-

export CROSS32CC=arm-linux-gnueabihf-gcc

export TEGRA_KERNEL_OUT=$L4T_DIR/sources/kernel/out_kernel

export KERNEL_PATH=$L4T_DIR/sources/kernel/out_kernel

export NVIDIA_PATH=$L4T_DIR/sources/kernel/nvidia

export NANO_JDTS_PATH=$L4T_DIR/sources/hardware/nvidia/platform/t210/

export TX2_JDTS_PATH=$L4T_DIR/sources/hardware/nvidia/platform/t18x

export XAVIER_JDTS_PATH=$L4T_DIR/sources/hardware/nvidia/platform/t19x

做好这个方式开始编译参照：Jetson Xavier NX 内核编译、源码编译 ->直接跳到4、编译kernel