# Xilinx 开发环境


## 交叉编译环境

在 NAS 文件服务器下载 Xilinx SDK 包，有两种安装方式：

1. 直接解压 sdk.tar.bz2 到任意目录（如 /opt）
2. 执行 sdk.sh 脚本安装

执行示例：

```bash
$ ./sdk.sh 
PetaLinux SDK installer version 2021.2
======================================
Enter target directory for SDK (default: /opt/petalinux/2021.2): 
You are about to install the SDK to "/opt/petalinux/2021.2". Proceed [Y/n]? 
[sudo] rudy 的密码： 
Extracting SDK....................................................................................done
Setting it up...done
SDK has been successfully set up and is ready to be used.
Each time you wish to use the SDK in a new shell session, you need to source the environment setup script e.g.
 $ . /opt/petalinux/2021.2/environment-setup-cortexa72-cortexa53-xilinx-linux
```

使用前需要先执行 source 命令，配置开发环境

```bash
$ source /opt/petalinux/2021.2/environment-setup-cortexa72-cortexa53-xilinx-linux
```

检查是否配置成功

```bash
$ aarch64-xilinx-linux-gcc --version
aarch64-xilinx-linux-gcc (GCC) 10.2.0
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
```





## 关闭自动休眠

```bash
root@bionic-arm64:~# sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target
Created symlink /etc/systemd/system/sleep.target �→ /dev/null.
Created symlink /etc/systemd/system/suspend.target �→ /dev/null.
Created symlink /etc/systemd/system/hibernate.target �→ /dev/null.
Created symlink /etc/systemd/system/hybrid-sleep.target �→ /dev/null.
```