WRTnode-配置OpenWrt

WRTnode是基于Wi-Fi AP-Soc的开源硬件开发板。使用联发科(Mediatek)mt7620方案。体积小，成本低，功耗尚可接受，计算能力还不错，天生高速的wifi交换能力。

官方网址 http://wiki.wrtnode.com/index.php?title=Main_Page/zh-cn

虽然 WRTnode 上提供 gcc，但是编译速度以及存储等限制，所以并不足以用来
开发软件。  需要用到交叉开发模式：在PC 上编辑、编译软件 ，然后在 WRTnode
板上运行、验证程序。以下为在Ubuntu下安装WRTnode的交叉编译环境OpenWrt的步骤:

1.打开Ubuntu操作系统，单击 Search your computer and online sources,输入 Terminal,单击运行 Terminal。

2.配置Linux编译环境。根据系统选择输入以下命令，按回车执行。

Debian 5 Lenny:

apt-get install gawk ncurses-dev unzip zlib1g-dev

Debian 6 Squeeze:

apt-get install libncurses5-dev zlib1g-dev gawk flex libssl-dev sdcc-nf

Debian 7 Wheezy:

apt-get install libncurses5-dev zlib1g-dev gawk

Ubuntu 13.10:

sudo apt-get install build-essential subversion git-core libncurses5-dev zlib1g-dev gawk flex quilt xsltproc

Ubuntu 12.04LTS:

sudo apt-get install build-essential subversion git-core libncurses5-dev zlib1g-dev gawk  flex quilt libssl-dev xsltproc libxml-parser-perl mercurial bzr ecj cvs unzip

Ubuntu 64bit:

sudo apt-get install build-essential subversion libncurses5-dev zlib1g-dev gawk gcc-multilib flex git-core gettext

Fedora 17:

yum install -y subversion binutils bzip2 gcc gcc-c++ gawk gettext flex libz-dev flex ncurses-devel zlib-devel make patch unzip perl-ExtUtils-MakeMaker

Fedora 18 – 64Bit (Maybe also for lower versions, some packages seem to be missing above):

yum install -y subversion binutils bzip2 gcc gcc-c++ gawk gettext flex ncurses-devel zlib-devel make patch unzip perl-ExtUtils-MakeMaker \ glibc glibc-devel glibc-static quilt ncurses-lib sed sdcc intltool sharutils bison#Maybe you need glibc.i686 glibc-static.i686 glibc-devel.i686 libgcc.i686 too

Fedora 19 – 64Bit (Maybe also for lower versions, some packages seem to be missing above):

yum install -y subversion binutils bzip2 gcc gcc-c++ gawk gettext flex ncurses-devel zlib-devel make patch unzip perl-ExtUtils-MakeMaker \ glibc glibc-devel glibc-static quilt ncurses-lib sed sdcc intltool sharutils bison wget

openSuSE 11.1

zypper install binutils bzip2 gawk gcc gcc-c++ gettext make ncurses-devel patch unzip wget zlib-devel flex git-core

In openSuSE some packages require additional repositories. Search on http://packages.opensuse-community.org and add repositories like that:

zypper ar"http://download.opensuse.org/repositories/devel:/languages:/perl/openSUSE_11.1/devel:languages:perl.repo"

Arch Linux

pacman -S --needed subversion asciidoc bash bc binutils bzip2 fastjar flex git gcc util-linux gawk intltool zlib make cdrkit ncurses openssl patch perl-extutils-makemaker rsync sdcc unzip wget gettext libxslt zlib boost libusb bin86 sharutils b43-fwcutter findutils

3.建工作目录：

$ mkdir OpenWrt
$ cd OpenWrt

4.下载 OpenWrt，并将其放到OpenWrt目录下：

$ wget http://downloads.openwrt.org/chaos_calmer/15.05/ramips/mt7620/OpenWrt-SDK-15.05-ramips-mt7620_gcc-4.8-linaro_uClibc-0.9.33.2.Linux-x86_64.tar.bz2

经过漫长的等待，下载完成。你也可以通过U盘安装，那样就不用网上下载了。

5.解压 OpenWrt，并重命名：

$ tar -jxvf OpenWrt-SDK-15.05-ramips-mt7620_gcc-4.8-linaro_uClibc-0.9.33.2.Linux-x86_64.tar.bz2

$ mv OpenWrt-SDK-15.05-ramips-mt7620_gcc-4.8-linaro_uClibc-0.9.33.2.Linux-x86_64 WRTnode-SDK

$ cd WRTnode-SDK

 

 

 6.开发hello wrold的软件包

(1)进入package目录：

$ls

$cd package

(2)在package目录下创建helloworld目录，并进入helloworld目录：

$mkdir helloworld
$cd helloworld

 (3)创建 helloworld.c 并编辑

$vi helloworld.c

按下 'i' 进行编辑，输入以下代码：

#include 

int main(void)

{

	printf("Hello World!\n");

	return 0;

}

按下 Esc 按键，输入":wq"(输入" "中的)，按回车保存并退出。

 (4)使用 mipsel-openwrt-linux-gcc 编译 helloworld.c

$export STAGING_DIR=~/OpenWrt/OpenWrt-SDK/staging_dir/

$export PATH=$STAGING_DIR/toolchain-mipsel_24kec+dsp_gcc-4.8-linaro_uClibc-0.9.33.2/bin

$mipsel-openwrt-linux-gcc helloworld.c -o helloworld

7.上电WRTnode，将电脑连接到热点 ITRON+xxxx 上，密码与WIFI名一样

8.重新打开 Terminal，将编译出的文件 helloworld 上传到WRTnode上：

$ cd ~/OpenWrt/WRTnode-SDK/package/helloworld

$ scp helloworld [email protected]:/tmp/

 

 9.远程登录WRTnode：

$ ssh [email protected]

输入登录密码，密码不显示，按回车登录。

10.执行 helloworld：

# cd /tmp

# ls

# ./helloworld