WRTnode - Revision history

Alvin: /* Compiling WRTnode static SDK */

2016-01-07T03:33:10Z

‎Compiling WRTnode static SDK

Alvin: /* WRTnode U-Boot instructions */

2016-01-07T02:11:01Z

‎WRTnode U-Boot instructions

Alvin: /* WRTnode U-Boot instructions */

2016-01-07T02:10:24Z

‎WRTnode U-Boot instructions

Alvin: /* Saving your WRTnode */

2016-01-07T02:07:35Z

‎Saving your WRTnode

Alvin at 10:27, 22 December 2015

2015-12-22T10:27:54Z

Alvin at 09:40, 18 December 2015

2015-12-18T09:40:49Z

Alvin at 09:08, 18 December 2015

2015-12-18T09:08:34Z

Alvin at 08:59, 18 December 2015

2015-12-18T08:59:34Z

Show changes

Alvin at 08:43, 18 December 2015

2015-12-18T08:43:29Z

Alvin at 08:33, 17 December 2015

2015-12-17T08:33:19Z

Show changes

@@ Line 1,353: / Line 1,353: @@
 The factory firmware：
 http://d.wrtnode.com/old-firmware/openwrt-ramips-mt7620n-wrtnode-squashfs-sysupgrade.bin
-The corresponding toolchain：
+The corresponding toolchain：[https://s3.amazonaws.com/linksprite/WRTnode/OpenWrt-Toolchain-ramips-for-mipsel_24kec%2Bdsp-gcc-4.8-linaro_uClibc-0.9.33.2.tar.bz2.crdownload download]
 == Flash Firmware ==

@@ Line 1,480: / Line 1,480: @@
 === WRTnode U-Boot instructions ===
-[http://d.wrtnode.com/uboot.bin uboot.bin]
 *Due to the special definition of gpio1 and gpio2 in uboot,so do not touch the two pins when using WRTnode.
-Download uboot.bin
+Download [http://d.wrtnode.com/uboot.bin uboot.bin]
 *Features:support flashing firmware and uboot via web; support booting kernel from USB USB flash drives(or SD Card);The baud rate is 115200.

@@ Line 1,479: / Line 1,479: @@
 === WRTnode U-Boot instructions ===
 *Due to the special definition of gpio1 and gpio2 in uboot,so do not touch the two pins when using WRTnode.
@@ Line 1,522: / Line 1,524: @@
 Thank [Manfeel] gives us the magical uboot
 == OpenWrt toolchain ==

@@ Line 1,392: / Line 1,392: @@
 === Saving your WRTnode ===
 Two commonly used methods of refreshing firmware are provided in Refresh the firmware section, these 2 methods are using the WiFi connection to transfer the firmware to WRTnode. If for some reasons the WRTnode is not working anymore - cannot connect/control it over the WiFi connection (it was bricked), we have to restore it to a functional state (to debrick it).
@@ Line 1,456: / Line 1,458: @@
 : apcli configuration
 About apcli configuration Click here
 == Configure ==

← Older revision		Revision as of 10:27, 22 December 2015
Line 2,292:		Line 2,292:

	[[File:97.png]]		[[File:97.png]]
		+
		+
		+	== WRTnode Settings ==
		+
		+	=== WRTnode connect to the network through the wan port ===
		+	一: Modify the WAN mode
		+	1: On the luci interface implementation:
		+	1.1 Web address bar enter http://192.168.8.1 login WRTnode .
		+	1.2 In Network-> interfaces to edit WAN.
		+
		+	[[File:98.png]]
		+
		+	1.3 modify the configuration
		+
		+	[[File:99.png]]
		+
		+	Override MAC address is set to null
		+
		+	[[File:100.png]]
		+
		+	1.4 Save & Apply
		+	2: The above operations can also change the configuration file /etc/config/network to achieve.
		+	Modify ago:
		+
		+	[[File:101.png]]
		+
		+	The revised:
		+
		+	[[File:102.jpg]]
		+
		+	二: with a network cable connected to WRTnode router WAN port and LAN port.
		+	1: No WRTnode standard backplane
		+	1.1 to go to the root of the network cable
		+
		+	[[File:103.jpg]]
		+
		+	This is the root of the production and use of the network cable can Click here to view details
		+	1.2 network cable connected to the WAN port WRTnode
		+
		+	[[File:104.png]]
		+
		+	Here's WAN port, LAN port is defined by software, which can be modified through the configuration file.
		+	Click here for details
		+	2: Use WRTnode standard backplane
		+	2.1 backplane access ports connected physically port3 port, the software is the default setting for port3 LAN port, so we have to modify the network port configuration to achieve port3 as Wan mouth.
		+	2.2 modify the configuration file /etc/config/network to achieve.
		+	Modify ago:
		+
		+	[[File:105.png]]
		+
		+	After modified:
		+
		+	[[File:106.png]]
		+
		+	(Ie: for the 0 position and 3, the original definition of the WAN port port0 to port3)
		+
		+	$ /etc/init.d/network Restart
		+
		+	2.3 After modification:
		+	See if there is a network cable to connect the display
		+
		+
		+	[[File:107.png]]
		+	Check whether there wan port ip address assigned to
		+
		+	[[File:108.png]]
		+
		+	If you see these, you have successfully set
		+	The next is pleasant to the Internet

← Older revision		Revision as of 09:40, 18 December 2015
Line 2,110:		Line 2,110:

	[[File:93.png]]		[[File:93.png]]
		+
		+
		+
		+	=== WRTnode flash MAC via web ===
		+
		+	1:compile and install ipk
		+	Download the [https://github.com/WRTnode/openwrt-packages/tree/master/wrtnode/FlashMAC/ WRTnode FlashMAC package] ,compile and install.
		+	If you do not want to compile it you can directly download it as ipk, and install directly.
		+	Url：http://pan.baidu.com/s/1mg9hGKg
		+	2:After install, download WRTnodemacjsonp.html
		+	[https://github.com/WRTnode/openwrt-patches/raw/master/FlashMAC-html/WRTnodemacjsonp.html]
		+	3:How to use the WRTnodemacjsonp.html page
		+	The first step: Power on the ??television??, with a network cable to connect the PC
		+	The second step: Open the WRTnodemacjsonp.html file using google browser (Chrome)
		+	The third step: Write the MAC address in the input box to WRTnode
		+
		+	[[File:94.png]]
		+
		+
		+	The MAC address is changed when you click the following button:
		+
		+	[[File:95.png]]
		+
		+	If the MAC address is successfully flashed the MAC address is automatically changed in the input box.
		+	Such as: 18:DD:BB:FF:EE:CC, successfully flashed MAC address input box automatically displays the next write MAC address 18:DD:BB:FF:EE:CE
		+
		+	=== WRTnode add support for RoboPeak Mini USB Display ===
		+
		+
		+	RoboPeak Mini USB Display as an output device
		+	一：Download RoboPeak Mini USB Display driver code
		+	1：[https://github.com/robopeak/rpusbdisp/tree/master/drivers/linux-driver/ Click here to view the source code]
		+	Create a new directory robopeak in the directory drivers/video
		+	Download driver source code and put it in the directory drivers/video/robopeak
		+	But there will be some small problems.for example, the location of the header file incorrect or missing some header files, and so on.
		+	2：here provide modified driver code
		+	Download driver source code and put it in the directory drivers/video then decompressed.
		+
		+	$ tar -jxvf robopeak.tar.bz2
		+
		+	二：How to add robopeak driver to the kernel configuration
		+
		+	$(PATH) is the path where the driver
		+
		+	1: Edit the drivers/video/Kconfig and add source "drivers/video/robopeak/Kconfig"
		+
		+	$vi $(PATH)/driver/video/Kconfig
		+	comment "Frame buffer hardware drivers"
		+	source "drivers/video/robopeak/Kconfig"
		+	depends on FB
		+
		+	2：在driver/video/Makefile添加 obj-$(CONFIG_FB_RPUSBDISP) += robopeak/
		+
		+	vi $(PATH)/driver/video/Makefile
		+
		+	obj-$(CONFIG_FB) += fb.o
		+	obj-$(CONFIG_FB_RPUSBDISP) += robopeak/
		+
		+	三：Configuration
		+
		+	̩ $make kernel_menuconfig
		+
		+	Device Drivers:
		+	USB Support:
		+	<*> Support for Host-side USB
		+	Graphics support:
		+	<*> Support for frame buffer devices:
		+	<*> Enable firmware EDID
		+	<*> Framebuffer foreign endianness support
		+	<*> Enable Video Mode Handling Helpers
		+	<*> Enable Tile Blitting Support
		+	<*> Robopeak USB Display
		+	<*> Displaylink USB Framebuffer support
		+	[*]Bootup logo:
		+	<*> Standard 224-color Linux logo
		+	Character devices:
		+	<*> Virtual terminal
		+	<*> Enable character translations in console
		+	<*> Support for console on virtual terminal
		+	<*> Support for binding and unbinding console drivers
		+	Graphics support:
		+	Console display driver support:
		+	<*> Framebuffer Console support
		+	<*> Map the console to the primary display device
		+	<*> Framebuffer Console Rotation
		+	<*> Select compiled-in fonts
		+	<*> VGA 8x16 font
		+
		+	四：compile
		+
		+	$ make V=s -j
		+
		+	五：Refresh firmware and do the following:
		+	1：Once the driver recognizes the display, a framebuffer device will be created. (e.g. /dev/fb0)
		+
		+	#cat /proc/fb
		+	0
		+
		+	In the above example, /dev/fb0 is the related framebuffer device. To test whether the framebuffer device works, you may using the following command:
		+
		+	#cat /dev/urandom > /dev/fb0
		+
		+	You should see the display screen is filled with random color dots.
		+	Show a picture on the screen.
		+	Download picture.bmp and put it in the directory /tmp
		+
		+	#cat /tmp/picture.bmp > /dev/fb0
		+
		+	picture.bmp requirement is bmp format with a resolution of 320 * 240,16 bitmap.
		+
		+	[[File:96.jpg]]
		+
		+	Clear the screen：
		+
		+	#dd if=/dev/zero of=/dev/fb0
		+
		+	Save the contents of the fb0
		+
		+	#dd if=/dev/fb0 of=fbfile
		+
		+	Write back in the screen
		+
		+	#dd if=fbfile of=/dev/fb0
		+
		+	Input string to display on screen
		+	Let’s check if the virtual console of the frame buffer has been created:
		+
		+	# ls /sys/class/vtconsole/vtcon*
		+	/sys/class/vtconsole/vtcon0:
		+	bind name subsystem uevent
		+	/sys/class/vtconsole/vtcon1:
		+	bind name subsystem uevent
		+
		+	The console has been created. Let’s check that it belongs to the frame buffer:
		+
		+	# cat /sys/class/vtconsole/vtcon1/name
		+
		+	(M) frame buffer device
		+
		+	# cat /sys/class/vtconsole/vtcon1/bind
		+	1
		+	#echo hellowrtnode > /dev/vcs1
		+
		+
		+	RoboPeak Mini USB Display as an input device
		+	一：Therefore on the stage of configuration OpenWrt the following modules are to be selected:
		+
		+	$ make menuconfig
		+	Base system:
		+	<*> busybox:
		+	Linux System Utilities:
		+	<*> lsusb
		+	Kernel modules:
		+	USB Support:
		+	<*> kmod-usb-hid
		+
		+	二：compile
		+
		+	$make V=s -j
		+
		+	三：Refresh firmware and do the following:
		+	A new device has to be created in the directory /dev:
		+
		+	#ls /dev/input/ -l
		+	crw-r--r-- 1 root root 13, 64 Sep 17 18:44 event0
		+
		+	#cat /proc/bus/input/devices
		+	I: Bus=0003 Vendor=0000 Product=0000 Version=0000
		+	N: Name="RoboPeakUSBDisplayTS"
		+	P: Phys=
		+	S: Sysfs=/devices/virtual/input/input0
		+	U: Uniq=
		+	H: Handlers=event0
		+	B: PROP=0
		+	B: EV=b
		+	B: KEY=400 0 0 0 0 0 0 0 0 0 0
		+	B: ABS=1000003
		+	#cat /dev/input/event0 \|hexdump
		+
		+	Touch RoboPeak Mini USB Display, printed on the wrtnode
		+
		+	[[File:97.png]]

← Older revision		Revision as of 09:08, 18 December 2015
Line 2,043:		Line 2,043:
	opencv-test source code and Makefile in the src directory, interested students can further study.		opencv-test source code and Makefile in the src directory, interested students can further study.
	Note: opencv application can be considered almost a cross-platform, we can develop the following in windows or Mac x86, and will work with the graphics window display and keyboard input, etc. after OpenWrt not support code removed, to ensure the smooth compiled on WRTnode adoption and implementation.		Note: opencv application can be considered almost a cross-platform, we can develop the following in windows or Mac x86, and will work with the graphics window display and keyboard input, etc. after OpenWrt not support code removed, to ensure the smooth compiled on WRTnode adoption and implementation.
		+
		+
		+	== WRTnode Projects ==
		+
		+	=== WRTnode Web Portal ===
		+
		+	At this point we start to define the interaction way of WRTnode’s web.Traditional OpenWrt luci as advanced Settings.
		+	Download and install ipk
		+	Download the http://d.wrtnode.com/packages/webwifi_1_ramips_24kec.ipk and Upload your WRTnode. Then ,log in to your WRTnode and perform:
		+
		+	$ opkg install webwifi_1_ramips_24kec.ipk
		+
		+	[[File:86.png]]
		+
		+	Ipk packages installed will execute the following script later:
		+
		+	$ set_default_page_to_wrtnode_portal.sh
		+
		+	(If you want to nitpick script name is too long, Teach you a trick, Under Linux the Tab key to magical function of completion, So you only need to input a few characters, and then use the Tab key to completion)
		+
		+	[[File:87.png]]
		+
		+
		+	Open your browser(If ever visit luci interface before, please clear the browser cache),input: 192.168.8.1,clicke the Enter batten , the following interface will appear, congratulations! Your WRTnode web portal set up successfully.
		+
		+
		+
		+	[[File:88.png]]
		+
		+	Select your wireless access point and fill in the wireless password， Click to save. Because of the process to restart the network, some minutes is wanted, you will be prompted has been connected to the IP address of the router and distribution after refresh the page. Click set password management, you can change your wifi password.
		+	Click WRTnode Control Panel back to openwrt luci interface.
		+
		+	[[File:89.png]]
		+
		+	If you want to remove webwifi software package, perform:
		+
		+	$ opkg remove webwifi
		+
		+
		+	[[File:90.png]]
		+
		+	After unloading webwifi packages to execute the following script, Also use the Tab key to match.Remember! after unloading webwifi this script must be executed:
		+
		+	$ switch_to_default_luci.sh
		+
		+	[[File:91.png]]
		+
		+
		+	How will these packages compiled together with the firmware
		+
		+	OpenWRT of feeds for updates and installation (refer to the specific process http://wiki.wrtnode.com/index.php?title=Compiling_WRTnode_Firmware ):
		+
		+	$ cd trunk
		+	$ cp feeds.conf.default feeds.conf
		+	$ echo "src-git wrtnode https://github.com/WRTnode/openwrt-packages.git" >> ./feeds.conf
		+	$ ./scripts/feeds update -a
		+	$ ./scripts/feeds install -a
		+
		+	Then
		+
		+	$ make menuconfig
		+
		+	[[File:92.png]]
		+
		+
		+
		+	[[File:93.png]]

← Older revision		Revision as of 08:43, 18 December 2015
Line 1,737:		Line 1,737:
	Create a package using Makefile - consult details at openwrt wiki		Create a package using Makefile - consult details at openwrt wiki
	References		References
		+
		+
		+	== Porting OpenCV to WRTnode ==
		+
		+	=== Common method ===
		+
		+	Host Platform :ubuntu
		+	Target Platform :OpenWrt system (mips)
		+	Cross-compiler is mipsel-openwrt-linux-gcc(gcc version 4.6.4 )
		+	get gcc version Information:
		+
		+	$./mipsel-openwrt-linux-gcc -v
		+
		+	Since future versions opencv 2.0 outset use cmake configuration management. So we need to install the relevant tools, install cmake and cmake-gui (included in cmake-qt-gui). Executed in the terminal:
		+
		+	$sudo apt-get install cmake cmake-qt-gui
		+
		+	Automatically installed in ubuntu.
		+	Download opencv-2.4.4.tar.gz,Unzip ,Establish compile directory:
		+
		+	$tar -jxvf opencv-2.4.4.tar.gz
		+	$cd opencv-2.4.4
		+	$mkdir build
		+	$cd build
		+	$cmake-gui
		+
		+
		+	[[File:81.png]]
		+
		+	Set the source path (OpenCV-2.4.4) and build path (OpenCV-2.4.4 / build), click configure.
		+
		+	[[File:82.png]]
		+
		+	Select the cross-compiler. Click Next to enter the selection screen.
		+
		+	[[File:83.png]]
		+
		+	Operating System Select mipsel-linux, cmake can not identify, view the README found cmake identification Linux, rather than mipsel-linux, after the change over will be a lot more options, including V4L and so on.
		+	After selecting the Operating System as well as cross-compiler, click Finish.
		+
		+	[[File:84.png]]
		+
		+	The library does not need to be removed, the best modify the installation path (CMAKE_INSTALL_PREFIX), defaults to /usr/local, we can modify according to their own, I was /usr/local/openwrt.
		+	Some configuration information last seen after clicking config. In the print information will Configuring done last sign, indicating config has been completed.
		+	Finally, click generate, generate makefile, then do is compiled.
		+
		+	$make
		+
		+	There will certainly be some errors during compilationv
		+	Error:
		+
		+	mipsel-openwrt-linux-g++: warning: environment variable 'STAGING_DIR' not defined
		+	/home/lijp/openwrt/trunk/staging_dir/toolchain-mipsel_24kec+dsp_gcc-4.6-linaro_uClibc-0.9.33.2/lib/gcc/mipsel-openwrt-linux-uclibc/4.6.4/../../../../mipsel-openwrt-linux-uclibc/bin/ld: cannot find - lgtk-x11-2.0
		+	/home/lijp/openwrt/trunk/staging_dir/toolchain-mipsel_24kec+dsp_gcc-4.6-linaro_uClibc-0.9.33.2/lib/gcc/mipsel-openwrt-linux-uclibc/4.6.4/../../../../mipsel-openwrt-linux-uclibc/bin/ld: cannot find -lgdk-x11-2.0
		+	/home/lijp/openwrt/trunk/staging_dir/toolchain-mipsel_24kec+dsp_gcc-4.6-linaro_uClibc-0.9.33.2/lib/gcc/mipsel-openwrt-linux-uclibc/4.6.4/../../../../mipsel-openwrt-linux-uclibc/bin/ld: cannot find -latk-1.0
		+	/home/lijp/openwrt/trunk/staging_dir/toolchain-mipsel_24kec+dsp_gcc-4.6-linaro_uClibc-0.9.33.2/lib/gcc/mipsel-openwrt-linux-uclibc/4.6.4/../../../../mipsel-openwrt-linux-uclibc/bin/ld: cannot find -lgio-2.0
		+	/home/lijp/openwrt/trunk/staging_dir/toolchain-mipsel_24kec+dsp_gcc-4.6-linaro_uClibc-0.9.33.2/lib/gcc/mipsel-openwrt-linux-uclibc/4.6.4/../../../../mipsel-openwrt-linux-uclibc/bin/ld: cannot find -lpangoft2-1.0
		+	/home/lijp/openwrt/trunk/staging_dir/toolchain-mipsel_24kec+dsp_gcc-4.6-linaro_uClibc-0.9.33.2/lib/gcc/mipsel-openwrt-linux-uclibc/4.6.4/../../../../mipse
		+
		+	Review:
		+	The WITH_GTK removed, does not compile
		+	Error:
		+
		+	/home/lijp/openwrt/trunk/staging_dir/toolchain-mipsel_24kec+dsp_gcc-4.6-linaro_uClibc-0.9.33.2/lib/gcc/mipsel-openwrt-linux-uclibc/4.6.4/../../../../mipsel-openwrt-linux-uclibc/bin/ld: cannot find -lavcodec
		+	/home/lijp/openwrt/trunk/staging_dir/toolchain-mipsel_24kec+dsp_gcc-4.6-linaro_uClibc-0.9.33.2/lib/gcc/mipsel-openwrt-linux-uclibc/4.6.4/../../../../mipsel-openwrt-linux-uclibc/bin/ld: cannot find -lavformat
		+	/home/lijp/openwrt/trunk/staging_dir/toolchain-mipsel_24kec+dsp_gcc-4.6-linaro_uClibc-0.9.33.2/lib/gcc/mipsel-openwrt-linux-uclibc/4.6.4/../../../../mipsel-openwrt-linux-uclibc/bin/ld: cannot find -lavutil
		+	/home/lijp/openwrt/trunk/staging_dir/toolchain-mipsel_24kec+dsp_gcc-4.6-linaro_uClibc-0.9.33.2/lib/gcc/mipsel-openwrt-linux-uclibc/4.6.4/../../../../mipsel-openwrt-linux-uclibc/bin/ld: cannot find -lswscale
		+
		+	Review:
		+	The WITH_FFMPEG removed, does not compile.
		+	Compile success!
		+	Install:
		+	$sudo make install
		+	Eeopencv5.png
		+	Test opencv-2.4.4
		+	$ vim test.c
		+	#include <opencv/cv.h>
		+	#include <opencv/highgui.h>
		+	#include <stdio.h>
		+	#pragma warning(disable : 4996)
		+	#pragma comment(lib, "cv.lib")
		+	#pragma comment( lib, "cxcore.lib" )
		+	#pragma comment( lib, "highgui.lib" )
		+	int main( int argc, char** argv )
		+	{
		+	char c;
		+	IplImage* pFrame = NULL;
		+	CvCapture* pCapture = NULL;
		+	char ImagesName[1024];
		+	int ImgNum=0;
		+	pCapture = cvCreateCameraCapture(-1);
		+	printf("pCapture = %d\n",pCapture);
		+	while(pFrame = cvQueryFrame( pCapture ))
		+	{
		+	ImgNum=ImgNum+1;
		+	sprintf(ImagesName, "Image%.3d.jpg", ImgNum);
		+	cvSaveImage(ImagesName, pFrame,0);
		+	if(ImgNum > 5)
		+	break;
		+	}
		+	cvReleaseCapture(&pCapture);
		+	return 0;
		+	}
		+	Here we will compile out of the library and header files put under our toolchain
		+	$sudo cp /usr/local/openwrt/lib/* xxx/toolchain-mipsel_24kec+dsp_gcc-4.6-linaro_uClibc-0. 9.33.2/lib -d -r
		+	$sudo cp /usr/local/openwrt/include/* xxx/toolchain-mipsel_24kec+dsp_gcc-4.6-linaro_uClibc-0. 9.33.2/include -r
		+	$vim Makefile
		+	CC = xxx/toolchain-mipsel_24kec+dsp_gcc-4.6-linaro_uClibc-0. 9.33.2/bin/mipsel-openwrt-linux-gcc
		+	all=test
		+	LFLAGS += -lpthread -lrt -lopencv_core -lopencv_highgui -lopencv_imgproc
		+	OBJECTS=test.o
		+	$(all): $(OBJECTS)
		+	$(CC) $(CFLAGS) $(LFLAGS) $(OBJECTS) -o $(all)
		+	clean:
		+	@echo "Cleaning up directory."
		+	rm -f .a .o $(all)
		+	Compile the test program, after which the executable program and libopencv * moved to run on WRTnode
		+	ubuntu install opencv-2.4.4
		+	1 First, run the following command in the terminal to make the necessary compiler environment installed.
		+	$sudo apt-get install build-essential libgtk2.0-dev libavcodec-dev libavformat-dev libjpeg62-dev libtiff4-dev cmake libswscale-dev libjasper-dev
		+	2.Download the appropriate version to the PC, where we download OpenCV-2.4.4 Example.
		+	$tar -jxvf OpenCV-2.4.4.tar.bz2
		+	$cd OpenCV-2.4.4
		+	$mkdir build
		+	$cd build
		+	$cmake ..
		+	$make
		+	$sudo make install(Installed by default in /usr/local directory)
		+	Here we can use to replace cmake cmake-gui.
		+	3 Now you need to configure opencv library
		+	$sudo vim /etc/ld.so.conf.d/opencv.conf
		+	Add the /usr/local/lib to opencv.conf
		+	$sudo ldconfig
		+	ldconfig is a dynamic link library management command, in order to make the system dynamic link library shared by the need to run a dynamic link library management commands --ldconfig
		+	By use ldconfig command, mainly in the default search directories (/lib and /usr/lib) and listed within the directory /etc/ld.so.conf dynamic library configuration files, search the dynamic link library that can be shared (format as previously described, lib * .so *), and then create a dynamic loader (ld.so) required connections and cache files. cache files by default /etc/ld.so.cache, save this file has lined up dynamic Link Library list of names.
		+	Open the bash.bashrc and add the following two code
		+	$sudo vim /etc/bash.bashrc
		+	1PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig 2export PKG_CONFIG_PATH
		+	8 Run the test program
		+	$cd OpenCV-2.4.4
		+	$cd sample/c
		+	$./build_all.sh
		+	In facedetect executable program as an example:
		+	$./facedetect --cascade="/usr/local/share/OpenCV/haarcascades/haarcascade_frontalface_alt.xml" --scale=1.5 lena.jpg
		+	Or：
		+	$./facedetect --scale=1.5 lena.jpg