基于petalinux2020.1的QSPI启动流程文章来源：https://www.toymoban.com/news/detail-401970.html
- 开发工具
Vivado2020.1
Petalinux2020.1
Ubuntu18.04.4（64bit）
虚拟机vmware-16.2.3
开发板：XC7Z020-CLG400 - Petalinux坏境搭建
- 用虚拟机安装完ubuntu18.04.4后，更换阿里云下载源：
cd /etc/apt
sudo gedit sources.list
输入密码
sources.list文件打开后，把内容更换如下,保存退出；
deb http://mirrors.aliyun.com/ubuntu/ $Codename main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ $Codename-backports main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ $Codename-proposed main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ $Codename-security main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ $Codename-updates main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ $Codename main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ $Codename-backports main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ $Codename-proposed main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ $Codename-security main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ $Codename-updates main multiverse restricted universe
执行更新：apt-get update
2) 安装petalinux依赖库
sudo apt-get install -y python tofrodos iproute2 gawk xvfb gcc git net-tools libncurses5-dev tftpd zlib1g-dev libssl-dev 文章来源地址https://www.toymoban.com/news/detail-401970.html
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