查看“MY-IMX6 Linux-3.14 测试手册”的源代码


='''测试前的准备(preparation before test)'''=
-----
1）请按照《Linux快速启动手册》中的“Linux快速启动” -> “连接设备”进行连接。<br>
<span style="background:#CCCCCC">please connect following the path of 《Linux fast boot manual》->“Linux fast boot” -> “device connection”。</span><br>
2）请按照《Linux快速启动手册》中的“Linux快速启动” -> “启动设备”进行启动。<br>
<span style="background:#CCCCCC">please boot following the path of 《Linux fast boot manual》->“Linux fast boot” -> “device booting”。</span><br>

= '''测试项目(test item)''' =

----
== '''网口测试(network inferface test)''' ==
MY-IMX6-EK200支持两个百兆网口。<br>
<span style="background:#CCCCCC">MY-IMX6-EK200 support two 100 Mbps ethernet interfaces。</span><br>
MY-IMX6-EK314支持一个千兆网口，一个百兆网口。<br>
<span style="background:#CCCCCC">MY-IMX6-EK314 support one Gbps and one 100 Mbps ethernet interface。</span><br>


=== 接口属性(interface property) ===
<div>
{| class="wikitable"
|-
!span style="color:#FFFFFF;background:#000080"|评估板型号<br>(evaluation board model no)	
!span style="color:#FFFFFF;background:#000080"|接口位置<br>(interface position)	
!span style="color:#FFFFFF;background:#000080"|接口速率标准<br>(interface rate standard)	
!span style="color:#FFFFFF;background:#000080"|系统接口<br>(system interface)	
|-
|rowspan=2|MY-IMX6-EK200	
|P4	
|10/100Mbps	
|eth0
|-
	
|P3	
|10/100Mbps	
|eth1
|-
|rowspan=2|MY-IMX6-EK314	
|U12	
|10/100/1000Mbps	
|eth0
|-
	
|P1	
|10/100Mbps	
|eth1
|}
</div>


=== 测试方法(test method) ===
1）	配置计算机IP<br>
<span style="background:#CCCCCC">configure computer IP</span><br>

设置计算机有线网卡IP为192.168.18.18<br>
<span style="background:#CCCCCC">set wired network card IP of computer as 192.168.18.18</span><br>
[[文件:MY-IMX6 Linux-3.14_2.1.2.1 .png]]<br>

2）	Eth0连接测试<br>
<span style="background:#CCCCCC">Eth0 connect test</span><br>
*连接网线：将评估板“eth0”对应的接口与计算机有线网卡的接口用网线相连接<br>
<span style="background:#CCCCCC">connect lan line: connect “eth0”on evaluation board with corresponding wired network card interface on computer with lan line</span><br>

*设置评估板IP：<br>
<span style="background:#CCCCCC">set evaluation board IP：</span><br>
<span style="background:#ffff00>＃ ifconfig eth0 192.168.18.36</span>	　　　　　＃ configure the eth0<br>

*执行测试命令：<br>
<span style="background:#CCCCCC">execute test command：</span><br>
<span style="background:#ffff00">＃ ifconfig eth1 down</span>		　　　　　＃ eth1 to be shut down<br>
<span style="background:#ffff00">＃ ping 192.168.18.18 -c 2 -w 4</span>		　　　　　＃ send ICMP to HOST<br>

*观察测试结果：系统会输出类似如下信息：<br>
<span style="background:#CCCCCC">observe test result：system will output message like following</span><br>
<span style="background:#c0c0c0">--- 192.168.18.18 ping statistics --- <br>
2packets transmitted, 2 packets received, 0% packet loss</span><br>

*测试结果：“0% packet loss”表示测试通过<br>
<span style="background:#CCCCCC">test result：“0% packet loss”represent test passing</span><br>

*附图<br>
<span style="background:#CCCCCC">figure</span><br>
[[文件:MY-IMX6 Linux-3.14_2.1.2.2.png]]<br>

3）	Eth1连接测试<br>
<span style="background:#CCCCCC">Eth1 connect test</span><br>

*连接网线：将网线插入“eth1”对应的评估板接口，网线另一端保持与计算机有线网卡的接口连接。<br>
<span style="background:#CCCCCC">connect lan line：insert one end of lan line into “eth1”on evaluation board and another end into wired network card interface on computer。</span><br>

*设置第2个网口IP：<br>
<span style="background:#CCCCCC">set the second network inter face IP：</span><br>
<span style="background:#ffff00">＃ ifconfig eth1 192.168.18.27</span>		　　　　　＃ configure the eth1<br>

设置后系统会输出第2个网口的工作状态信息，类似如下：<br>
<span style="background:#CCCCCC">after setting the system will output message on working condition of second network interface，like following：</span><br>
smsc95xx 1-1.1:1.0 eth1: link up, 100Mbps, full-duplex, lpa 0x4DE1<br>

*执行测试命令：<br>
<span style="background:#CCCCCC">execute test command：</span><br>
<span style="background:#ffff00">＃ ifconfig eth0 down</span>							　　　　　＃ eth0 to be shut down<br>
<span style="background:#ffff00">＃ ping 192.168.18.18 -c 2 -w 4</span>		　　　　　＃ send ICMP to HOST<br>

*观察测试结果：系统会输出类似如下信息：<br>
<span style="background:#CCCCCC">observe test result：system will output message like following：</span><br>
--- 192.168.18.18 ping statistics ---<br>
2packets transmitted, 2 packets received, 0% packet loss<br>

*测试结果：“0% packet loss”表示测试通过<br>
<span style="background:#CCCCCC">test result：“0% packet loss”represent test passing</span><br>
*附图<br>
<span style="background:#CCCCCC">figures</span><br>
[[文件:MY-IMX6 Linux-3.14_2.1.2.3.png]]<br>


== '''USB测试(USB test)''' ==
=== 接口属性(interface property) ===
<div>
{| class="wikitable"
|-
!span style="color:#FFFFFF;background:#000080"|评估板型号<br>(evaluation board model no.)			
!span style="color:#FFFFFF;background:#000080"|接口位置<br>(interface position)		
!span style="color:#FFFFFF;background:#000080"|接口速率标准<br>(interface rate standard)	
|-
|MY-IMX6-EK200	
|J8	
|480 Mbits/s
|-
|MY-IMX6-EK314	
|J2	
|480 Mbits/s
|}
</div>


=== 测试方法(test method) ===
1）	开始测试<br>
<span style="background:#CCCCCC">start test</span><br>
将USB设备插入底板USB接口，系统会输出类似如下信息：<br>
<span style="background:#CCCCCC">insert USB device into USB port on base board，system will output message like following：</span><br>
usb *-*.*: new high speed USB device number * using fsl-ehci<br>
……<br>

2）	测试结束<br>
<span style="background:#CCCCCC">test over</span><br>
将USB设备从底板拔出，系统会输出类似如下信息：<br>
<span style="background:#CCCCCC">take out USB device from base board，system will output message like following：</span><br>
<span style="background:#c0c0c0">usb *-*.*: USB disconnect, device number *</span><br>

===  附图(figure) ===
说明：在USB口上插拔U盘时，系统输出信息类似如下：<br>
<span style="background:#CCCCCC">instruction：when plug in & out U disk from USB interface，system will output message like following：</span><br>
[[文件:MY-IMX6 Linux-3.14_2.2.3.1 .png]]<br>

== '''SD卡测试(SD card test)''' ==
=== 接口属性(interface property) ===
<div>
{| class="wikitable"
|-
!span style="color:#FFFFFF;background:#000080"|评估板型号<br>(evaluation model no.)		
!span style="color:#FFFFFF;background:#000080"|接口位置<br>(interface position)		
!span style="color:#FFFFFF;background:#000080"|接口类型<br>(interface type)	
|-
|MY-IMX6-EK200	
|J8	
|SD
|-
|MY-IMX6-EK314	
|J25	
|SD
|}
</div>


=== 开始测试(start test) ===
1） 往SD卡槽插入设备<br>
<span style="background:#CCCCCC">insert device into SD card slot</span><br>
插入SD卡到底板SD卡接口。系统输出以下信息（见附图）即表示SD接口正常：<br>
<span style="background:#CCCCCC">insert SD card into SD card port on base board。when system output following message(see attached figures),which represent that SD card interface is normal：</span><br>
mmc*: new high speed SD card at address ****<br>
mmcblk*: mmcx:xxxx SA**G *.**GiB<br>
　mmcblk*: p*<br>

2）从SD卡槽弹出设备<br>
<span style="background:#CCCCCC">pop-up device from SD card slot</span><br>
再次住SD卡槽按下SD卡，底板会弹出SD卡。系统输出以下信息（见附图）表示SD卡接口弹出正常：<br>
<span style="background:#CCCCCC">press again SD card against SD card slot，base board will pop-up SD card。when system output following message(see attached figures),which represent that SD card interface pop-up is normal：</span><br>
mmc*: card **** removed<br>

3）	结束测试<br>
<span style="background:#CCCCCC">test over</span><br>
SD卡弹出后拨出SD卡即结束测试。<br>
<span style="background:#CCCCCC">take out SD card after SD card pop-pup,then test is over。</span><br>

===  附图(figures) ===
[[文件:MY-IMX6 Linux-3.14_2.3.3.1 .png]]<br>


== '''音频测试(audio test)''' ==
=== 测试说明(test instruction) ===
这项测试是通过播放音频文件验证评估板的音频功能。<br>
<span style="background:#CCCCCC">the test is to verify audio function of evaluation board by playing audio file。</span><br>

===  测试方法(test method) ===
1）准备测试<br>
<span style="background:#CCCCCC">prepare test</span><br>
<span style="background:#CCCCCC">connect audio output device to audio element in front view of base board,audio element is “J20”in front view of base board，silkscreened as“HP”。</span><br>

2）执行测试<br>
<span style="background:#CCCCCC">execute test</span><br>
使用aplay播放一个视频，示例命令如下：<br>
<span style="background:#CCCCCC">play a video with gplay，commanded as below：</span><br>
<span style="background:#ffff00">＃ aplay /unit_tests/audio8k16S.wav<br></span>	
上面这条命令会使用aplay播放命令中指定的文件。<br>
<span style="background:#CCCCCC">the above command will play a file designated by command with gplay。</span><br>

3）测试结果<br>
<span style="background:#CCCCCC">test result</span><br>
执行上面的测试命令后会听到音频设备输出的声音。<br>
<span style="background:#CCCCCC">you can see the vedeo played on display screen of evaluation board and hear the voices outputed by audio device。</span><br>

===  附图(figures) ===
[[文件:MY-IMX6 Linux-3.14_2.5.3.1 .png]]<br>


== '''视频测试(video test)''' ==
===  测试说明(test instruction) ===
这项测试是通过播放视频验证评估板的音频视频功能。<br>
<span style="background:#CCCCCC">the test is to verify audio&video function of evaluation board by playing audio file。</span><br>

===  测试方法(test method) ===
使用gplay播放一个视频，示例命令如下：<br>
<span style="background:#CCCCCC">play a video with gplay，commanded as below：</span><br>
<span style="background:#ffff00">＃ gplay-1.0 /unit_tests/akiyo.mp4<br></span>	
上面这条命令会使用gplay播放命令中指定的文件。<br>
<span style="background:#CCCCCC">the above command will play a file designated by command with gplay。</span><br>
*测试结果<br>
<span style="background:#CCCCCC">test result</span><br>
执行上面的测试命令后会在评估板显示屏上看到大约1秒钟的视频图像。<br>
<span style="background:#CCCCCC">you can see the vedeo image for about 1 second on display screen of evaluation board after execution of test command。</span><br>


===  附图(figures) ===
[[文件:MY-IMX6 Linux-3.14_2.6.3.1 .png]]<br>
== '''标准GPIO测试(standard GPIO test)''' ==
=== 接口属性(interface property) ===
<div>
{| class="wikitable"
|-
!colspan=7;span style="background:#ffff00"|MY-IMX6-EK200
|-
|span style="color:#FFFFFF;background:#000080"|IO序号<br>(IO order number)		
|span style="color:#FFFFFF;background:#000080"|GPIO属性<br>(GPIO property)		
|span style="color:#FFFFFF;background:#000080"|接口位置<br>(interface position)		
|rowspan=8|	||span style="color:#FFFFFF;background:#000080"|接口位置<br>(interface position)		
|span style="color:#FFFFFF;background:#000080"|GPIO属性<br>(GPIO property)		
|span style="color:#FFFFFF;background:#000080"|IO序号<br>(IO order number)	
|-
|－－	||gpio-leds		||J4:3		||J4:4		||GPIO6_IO11	||171
|-
|－－	||gpio-leds		||J4:5		||J4:6		||GPIO2_IO26	||58
|-
|10		||GPIO1_IO10	||J4:7		||J4:8		||GPIO1_IO20	||20
|-
|－－	||gpio-leds		||J4:9		||J4:10		||GPIO3_IO21	||85
|-
|－－	||gpio-leds		||J4:11		||J4:12		||GPIO3_IO22	||86
|-
|11		||GPIO1_IO11	||J4:13		||J4:14		||NC			||NC
|-
|192	||GPIO7_IO00	||J21:12	||J21:11	||GPIO3_IO30	||94
|}
</div>

<div>
{| class="wikitable"
|-
!colspan=7;span style="background:#ffff00"|MY-IMX6-EK314 & MY-IMX6-EK336
|-
|span style="color:#FFFFFF;background:#000080"|IO序号<br>(IO order number)		
|span style="color:#FFFFFF;background:#000080"|GPIO属性<br>(IO order number)		
|span style="color:#FFFFFF;background:#000080"|接口位置<br>(interface position)		
|rowspan=20|	||span style="color:#FFFFFF;background:#000080"|接口位置<br>(interface position)		
|span style="color:#FFFFFF;background:#000080"|GPIO属性<br>(GPIO property)		
|span style="color:#FFFFFF;background:#000080"|IO序号<br>(IO order number)	
|-
|2		||GPIO1_IO02	||J23:11	||J23:12	||GPIO3_IO30	||94
|-
|193	||GPIO7_IO01	||U14:3		||U14:4		||GPIO7_IO00	||192
|-
|177	||GPIO6_IO17	||U14:5		||U14:6		||GPIO6_IO18	||178
|-
|176	||GPIO6_IO16	||U14:7		||U14:8		||GPIO2_IO07	||39
|-
|35		||GPIO2_IO03	||U14:9		||U14:10	||GPIO2_IO06	||38
|-
|169	||GPIO6_IO09	||U14:11	||U14:12	||GPIO6_IO11	||171
|-
|34		||GPIO2_IO02	||U14:13	||U14:14	||GPIO2_IO00	||32
|-
|36		||GPIO2_IO04	||U14:15	||U14:16	||GPIO2_IO05	||37
|-
|29		||GPIO1_IO29	||U14:17	||U14:18	||GPIO1_IO27	||27
|-
|30		||GPIO1_IO30	||U14:19	||U14:20	||GPIO1_IO26	||26
|-
|24		||GPIO1_IO24	||U14:21	||U14:22	||GND			||GND
|-
|10		||GPIO1_IO10	||U14:23	||U14:24	||GPIO1_IO15	||15
|-
|12		||GPIO1_IO12	||U14:25	||U14:26	||GPIO1_IO13	||13
|-
|11		||GPIO1_IO11	||U14:27	||U14:28	||GPIO1_IO14	||14
|-
|85		||GPIO3_IO21	||U14:29	||U14:30	||GPIO3_IO22	||86
|-
|GND	||GND			||U14:31	||U14:32	||GND			||GND
|-
|－－	||gpio-leds		||U14:33	||U14:34	||gpio-leds		||－－
|-
|20		||GPIO1_IO20	||U14:35	||U14:36	||gpio-leds		||－－
|-
|116	||GPIO4_IO20	||U14:37	||U14:38	||gpio-leds		||－－
|}
</div>


=== 测试方法(test method) ===
1）GPIO输出测试<br>
<span style="background:#CCCCCC">GPIO output test</span><br>

*设置需要测试的GPIO的IO序号<br>
<span style="background:#CCCCCC">set IO order number for GPIO of which need to be tested</span><br>
<span style="background:#ffff00">＃ OUT_IO_NUMBER=85<br></span>	

*导出GPIO<br>
<span style="background:#CCCCCC">lead out GPIO</span><br>
<span style="background:#ffff00">＃ echo ${OUT_IO_NUMBER} > /sys/class/gpio/export<br></span>	

*设置GPIO方向<br>
<span style="background:#CCCCCC">set GPIO direction</span><br>
<span style="background:#ffff00">＃ echo out > /sys/class/gpio/gpio${OUT_IO_NUMBER}/direction<br></span>	

*控制输出电平<br>
<span style="background:#CCCCCC">control outputed electrical level</span><br>
<span style="background:#ffff00">＃ echo 0 > /sys/class/gpio/gpio${OUT_IO_NUMBER}/value<br></span>	
<span style="background:#ffff00">＃ echo 1 > /sys/class/gpio/gpio${OUT_IO_NUMBER}/value<br></span>	
[[文件:MY-IMX6 Linux-3.14_2.7.2.1 .png]]<br>

2）GPIO输入测试<br>
<span style="background:#CCCCCC">GPIO input test</span><br>

*设置需要测试的GPIO的IO序号<br>
<span style="background:#CCCCCC">set IO order number for GPIO of which need to be tested</span><br>
<span style="background:#ffff00">＃ IN_IO_NUMBER=86<br></span>	

*导出GPIO<br>
<span style="background:#CCCCCC">lead out GPIO</span><br>
<span style="background:#ffff00">＃ echo ${IN_IO_NUMBER} > /sys/class/gpio/export<br></span>	

*设置GPIO方向<br>
<span style="background:#CCCCCC">set GPIO方向</span><br>
<span style="background:#ffff00">＃ echo in > /sys/class/gpio/gpio${IN_IO_NUMBER}/direction<br></span>	

*查看输入电平<br>
<span style="background:#CCCCCC">check inputed electrical level</span><br>
cat /sys/class/<span style="background:#ffff00">gpio/gpio${IN_IO_NUMBER}</span>	/value<br>
[[文件:MY-IMX6 Linux-3.14_2.7.2.2 .png]]<br>

3）验证输入输出<br>
<span style="background:#CCCCCC">verify input&output</span><br>
<span style="color:#ff0000">注意：这一步需要短接评估板的管脚，如果不确定自己能正确短接的请找硬件工程师支持，否则可能会损坏评估板。</span><br>
<span style="background:#CCCCCC">note：this step need a short connection of evaluation board pins,if you are not sure of how to conduct this kind of connection,please ask hardware engineer for a support,otherwise it may cause a damage of evaluation board。</span><br>
将前面配置的输出IO对应的管脚与配置的输入IO对应的管脚连接。即：在MY-IMX6-EK200上连接J4:10 - J4:12，在MY-IMX6-EK314上连接U14:29 - U14:30。<br>
<span style="background:#CCCCCC">connect outputed IO pins configured above with inputed IO pins configured above correspondingly.。e.g：connect J4:10 - J4:12 on MY-IMX6-EK200，and connect U14:29 - U14:30 on MY-IMX6-EK314。</span><br>

*查看输入管脚上的电平<br>
<span style="background:#CCCCCC">check eletrical level of inputed pins</span><br>
＃ cat /sys/class/gpio/gpio${IN_IO_NUMBER}/value<br>

*更改输出管脚的输出电平<br>
<span style="background:#CCCCCC">modify electrical level of outputed pins</span><br>
＃ echo 1 > /sys/class/gpio/gpio${OUT_IO_NUMBER}/value<br>

*查看输入管脚上的电平<br>
<span style="background:#CCCCCC">check electrical level of inputed pins</span><br>
＃ cat /sys/class/gpio/gpio${IN_IO_NUMBER}/value<br>
[[文件:MY-IMX6 Linux-3.14_2.7.2.3 .png]]<br>


== '''GPIO-LED测试(GPIO-LED test)''' ==
=== 接口属性(interface property) ===
<div>
{| class="wikitable"
|-
!colspan=3;span style="background:#ffff00"|MY-IMX6-EK200	
|rowspan=6|	
!colspan=3;span style="background:#ffff00"|MY-IMX6-EK314
|-
|span style="color:#FFFFFF;background:#000080"|接口位置<br>(interface position)		
|span style="color:#FFFFFF;background:#000080"|GPIO属性<br>(GPIO property)		
|span style="color:#FFFFFF;background:#000080"|LED属性<br>(LED property)		
	
|span style="color:#FFFFFF;background:#000080"|接口位置<br>(interface position)		
|span style="color:#FFFFFF;background:#000080"|GPIO属性<br>(GPIO property)		
|span style="color:#FFFFFF;background:#000080"|LED属性<br>(LED property)	
|-
|J4:3	
|gpio-leds	
|heartbeat	
|U14:24	
|gpio-leds	
|heartbeat
|-
|J4:5	
|gpio-leds	
|timer	
|U14:28	
|gpio-leds	
|timer
|-
|J4:9	
|gpio-leds	
|default-on	
|U14:26	
|gpio-leds	
|default-on
|-
|J4:11	
|gpio-leds	
|gpio	
|U14:25	
|gpio-leds	
|gpio
|}
</div>


=== GPIO-LED（Heartbeat）测试(GPIO-LED（Heartbeat）test) ===
系统启动完成后，用示波器检测heartbeat对应的接口，可看到如下类似信号：<br>
<span style="background:#CCCCCC">after system booting is completed，check interface corresponding with heartbeat with oscilloscope，then you can see message like below：</span><br>
[[文件:MY-IMX6 Linux-3.14_2.8.2.1 .png]]<br>
提示：heartbeat是与CPU心跳关联的，如果在此GPIO上接上LED，即可通过观察LED来判断CPU是否工作。<br>
<span style="background:#CCCCCC">tips：heartbeat is related to CPU heartbeat，if connect a LED wiht this GPIO，then we can adjudge whether CPU is working or not by LED。</span><br>


=== GPIO-LED（Timer）测试(GPIO-LED（Timer）test) ===
系统启动完成后，用示波器检测timer对应的接口，可看到如下类似信号：<br>
<span style="background:#CCCCCC">after system booting is completed，check interface corresponding with timer with oscilloscope，then you can see message like below：</span><br>
[[文件:MY-IMX6 Linux-3.14_2.8.3.1 .png]]<br>
通过delay_off、delay_on来控制高低电平持续的时间。<br>
<span style="background:#CCCCCC">control high&low electrical time by delay_off、delay_on。</span><br>
<span style="background:#ffff00">＃ echo 500 > /sys/class/leds/led-timer/delay_off<br></span>
<span style="background:#ffff00">＃ echo 1000 > /sys/class/leds/led-timer/delay_on<br></span>
再用示波器检测的时候，会看到波形发生的变化。<br>
<span style="background:#CCCCCC">re-check with oscilloscope,you can see the change of wave shape。</span><br>


=== GPIO-LED（Default ON）测试(GPIO-LED（Default ON）test) ===
Default-on可以通过brightness控制。<br>
<span style="background:#CCCCCC">Default-on can be controled by brightness。</span><br>
Default-on的实现是初始触发状态为on，即初始触发后为高电平。<br>
<span style="background:#CCCCCC">Default-on is set to be on for original trigger，e.g it is high electrical level after original trigger。</span><br>
<span style="background:#ffff00">＃ echo 1 > /sys/class/leds/Default/brightness<br></span>
往brightness写0即可检测到低电平。<br>
<span style="background:#CCCCCC">write 0 to brightness to detect low electrical level 。</span><br>
<span style="background:#ffff00">＃ echo 0 > /sys/class/leds/Default/brightness<br></span>


=== GPIO-LED（GPIO）测试(GPIO-LED（GPIO）test) ===
GPIO的测试可以使用跟default-on类似的方法：<br>
<span style="background:#CCCCCC">GPIO test can be in similar way as test of default-on：</span><br>
<span style="background:#ffff00">＃ echo 1 > /sys/class/leds/gpio1_12/brightness<br></span>
使用万用表测试LED:gpio对应的引脚，可以看到该引脚是高电平。<br>
<span style="background:#CCCCCC">test pin corresponding with LED:gpio with multi-meter，you can see the pin is high electrical level。</span><br>
<span style="background:#ffff00">＃ echo 0 > /sys/class/leds/gpio1_12/brightness<br></span>
使用万用表测试LED:gpio对应的引脚，可以看到该引脚是低电平。<br>
<span style="background:#CCCCCC">test pin corresponding with LED:gpio with multi-meter，you can see the pin is low electrical level。</span><br>


== '''GPIO-KEY测试(GPIO-KEY test)''' ==
=== 接口属性(interface property) ===
<div>
{| class="wikitable"
|-
!colspan=3;span style="background:#ffff00"|MY-IMX6-EK200	
|rowspan=5|	
!colspan=3;span style="background:#ffff00"|MY-IMX6-EK314
|-
|span style="color:#FFFFFF;background:#000080"|接口位置<br>(interface position)		
|span style="color:#FFFFFF;background:#000080"|GPIO属性<br>(GPIO property)		
|span style="color:#FFFFFF;background:#000080"|KEY属性<br>(KEY property)		
|span style="color:#FFFFFF;background:#000080"|接口位置<br>(interface position)		
|span style="color:#FFFFFF;background:#000080"|GPIO属性<br>(GPIO property)		
|span style="color:#FFFFFF;background:#000080"|LED属性<br>(LED property)	
|-
|SW2	
|gpio-keys	
|Power Button	
|SW4	
|gpio-keys	
|Power Button
|-
|SW3	
|gpio-keys	
|Volume Up	
|SW3	
|gpio-keys	
|Volume Up
|-
|SW5	
|gpio-keys	
|Volume Down	
|SW2	
|gpio-keys	
|Volume Down
|}
</div>


=== 测试方法(test method) ===
1）执行测试程序<br>
<span style="background:#CCCCCC">execute test program</span><br>
在终端下键入命令执行测试，示例如下：<br>
<span style="background:#CCCCCC">enter command to execute on terminal,example as below：</span><br>
<span style="background:#ffff00">＃ evtest<br></span>

2）选择测试设备<br>
<span style="background:#CCCCCC">select test device</span><br>
Select the device event number [0-2]: 2<br>
输入“gpio-keys”对应的序号，这里是2<br>
<span style="background:#CCCCCC">enter order number corrsponding with“gpio-keys”，here it is 2</span><br>
[[文件:MY-IMX6 Linux-3.14_2.9.2.1 .png]]<br>

3）进行交互测试<br>
<span style="background:#CCCCCC">proceed with interactive test</span><br>
在终端会看到“Testing ... (interrupt to exit)”，这时我们按下或松开SW4、SW3、SW2。会看到如下类似信息：<br>
<span style="background:#CCCCCC">on terminal you can“Testing ... (interrupt to exit)”，this time press or release SW4、SW3、SW2。message like below will come out：</span><br>

Event: time 1452590477.115958, type 1 (EV_KEY), code 116 (KEY_POWER), value 0<br>
Event: time 1452590477.115958, -------------- SYN_REPORT ------------<br>
Event: time 1452590478.415953, type 1 (EV_KEY), code 115 (KEY_VOLUMEUP), value 1<br>
其中“value 1”信息是在按键被按下的时候被输出，“value 0”信息是在按键被松开的时候被输出。<br>
<span style="background:#CCCCCC">message of“value 1”is outputed with press of key，message of“value 0”is outputed with release of key。</span><br>
[[文件:MY-IMX6 Linux-3.14_2.9.2.2 .png]]<br>
	
3）结束测试<br>
<span style="background:#CCCCCC">end test</span><br>
按计算机上的“Ctrl”+“C”可结束按键测试程序。<br>
<span style="background:#CCCCCC">press “Ctrl”+“C”on computer to end the test program for keys。</span><br>


== '''串口测试(serial port test)''' ==
MY-IMX6-EK200共5个串口，其中1个调试串口，4个用户串口。<br>
<span style="background:#CCCCCC">MY-IMX6-EK200 has total 5 serial ports，one is debug seiral port，the other 4 are user serial ports。</span><br>
MY-IMX6-EK314共5个串口，其中1个调试串口，4个用户串口。<br>
<span style="background:#CCCCCC">MY-IMX6-EK314 has total 5 serial ports，one is debug seiral port，the other 4 are user serial ports。</span><br>


=== 用户串口属性(user serial port property) ===
<div>
{| class="wikitable"
|-
!span style="color:#FFFFFF;background:#000080"|评估板型号<br>(evaluation board model no.)		
!span style="color:#FFFFFF;background:#000080"|UARTx		
!span style="color:#FFFFFF;background:#000080"|Rx		
!span style="color:#FFFFFF;background:#000080"|Tx	
!span style="color:#FFFFFF;background:#000080"|系统接口<br>(system interface)	
|-
|rowspan=4|MY-IMX6-EK200	
|UART2	
|J1:9	
|J1:7	
|ttymxc1
|-
|UART3	
|J1:13	
|J1:11	
|ttymxc2
|-
|UART4	
|J1:17	
|J1:15	
|ttymxc3
|-
|UART5	
|J1:16	
|J1:18	
|ttymxc4
|-
|rowspan=4|MY-IMX6-EK314	
|UART2	
|J12:9	
|J12:10	
|ttymxc1
|-
|UART3	
|J12:12	
|J12:13	
|ttymxc2
|-
|UART4	
|J12:17	
|J12:15	
|ttymxc3
|-
|UART5	
|J12:16	
|J12:18	
|ttymxc4
|}
</div>
提示：这里列出串口的收发管脚，串口其它管脚的定义请看原理图。<br>
<span style="background:#CCCCCC">tips：transceiver pins of serial port are listed here,but please refer to schematic for definition of all pins of serial port。</span><br>

=== 串口测试(serial port test) ===
1）测试说明<br>
<span style="background:#CCCCCC">test instruction</span><br>

*测试方法说明：<br>
<span style="background:#CCCCCC">intruction of test method：</span><br>
采用串口自发自收的方式进行。<br>
<span style="background:#CCCCCC">adopt method of self-sending & self-receiving of serial port。</span><br>
*测试结果说明：<br>
<span style="background:#CCCCCC">instruction of test result：</span><br>
通过测试程序向串口发送字符串，并输出串口接收到的字符串。<br>
<span style="background:#CCCCCC">send charater string to serial port through test program and output charater strings received by serial port。</span><br>
<span style="color:#ff0000">注意：串口测试需要短接评估板的管脚，如果不确定自己能正确短接的请找硬件工程师支持，否则可能会损坏评估板。</span><br>
<span style="background:#CCCCCC"><span style="color:#ff0000">note：serial port test need a short connection of evaluation board pins,if you are not sure of how to conduct this kind of connection,please ask hardware engineer for a support,otherwise it may cause a damage of evaluation board。</span></span><br>

2）进入测试程序目录<br>
<span style="background:#CCCCCC">enter test program directory</span><br>
<span style="background:#ffff00">＃ cd ~/my-demo/linux-3.14.52<br></span>

3）UART2测试<br>
<span style="background:#CCCCCC">UART2 test</span><br>
*准备测试<br>
<span style="background:#CCCCCC">prepare test</span><br>
短接串口2的发送发接收管脚（J1的9和10号）。<br>
<span style="background:#CCCCCC">short connect sending pin and receiving pin of serial port 2（no.9 and 10 of J1）。</span><br>
*执行测试命令<br>
<span style="background:#CCCCCC">execute test command</span><br>
<span style="background:#ffff00">＃ ./uart.out /dev/ttymxc1 "www.myzr.com.cn"<br></span>
*测试结果附图<br>
<span style="background:#CCCCCC">figures for test result</span><br>
[[文件:MY-IMX6 Linux-3.14_2.10.2.1 .png]]<br>

4）UART3测试<br>
<span style="background:#CCCCCC">UART3 test</span><br>
*准备测试<br>
<span style="background:#CCCCCC">prepare test</span><br>
短接串口3的发送发接收管脚（J1的12和13号）。<br>
<span style="background:#CCCCCC">short connect sending pin and receiving pin of serial port 3（no.12 and 13 of J1）。</span><br>

*执行测试命令<br>
<span style="background:#CCCCCC">execute test command</span><br>
<span style="background:#ffff00">＃ ./uart.out /dev/ttymxc2 "www.myzr.com.cn"<br></span>

*测试结果附图<br>
<span style="background:#CCCCCC">figures for test result</span><br>
[[文件:MY-IMX6 Linux-3.14_2.10.2.2 .png]]<br>

5）UART4测试<br>
<span style="background:#CCCCCC">UART4 test</span><br>

*准备测试<br>
<span style="background:#CCCCCC">prepare test</span><br>
短接串口4的发送发接收管脚（J1的15和17号）。<br>
<span style="background:#CCCCCC">short connect sending pin and receiving pin of serial port 4（no.15 and 17 of J1）。</span><br>

*执行测试命令<br>
<span style="background:#CCCCCC">execute test command</span><br>
<span style="background:#ffff00">＃ ./uart.out /dev/ttymxc3 "www.myzr.com.cn"<br></span>

*测试结果附图<br>
<span style="background:#CCCCCC">figures for test result</span><br>
[[文件:MY-IMX6 Linux-3.14_2.10.2.3 .png]]<br>

6）UART5测试<br>
<span style="background:#CCCCCC">UART5 test</span><br>

*准备测试<br>
<span style="background:#CCCCCC">prepare test</span><br>
短接串口5的发送发接收管脚（J1的16和18号）。<br>
<span style="background:#CCCCCC">short connect sending pin and receiving pin of serial port 5（no.16 and 18 of J1）。</span><br>

*执行测试命令<br>
<span style="background:#CCCCCC">execute test command</span><br>
<span style="background:#ffff00">＃ ./uart.out /dev/ttymxc4 "www.myzr.com.cn"<br>

*测试结果附图<br>
<span style="background:#CCCCCC">figures for test result</span><br>
[[文件:MY-IMX6 Linux-3.14_2.10.2.4 .png]]<br>


== '''RTC测试(RTC test) ''' ==
===  测试说明(test instruction) ===
受快递运输影响，MY-IMX6 系列评估板发货时不带电池。测试RTC前请自备纽扣电池并安装到评估板上。<br>
<span style="background:#CCCCCC">due to restrictions in transportation，MY-I.MX6 evaluation board doesn't contatin battery in delivery。before RTC test please prepare button cell to install on evaluation board。</span><br>
MY-IMX6-EK200的电池座在底板背面的“BT1”位置。<br>
<span style="background:#CCCCCC">MY-IMX6-EK200 battery holder is located in“BT1”on rear view of base board。</span><br>
MY-IMX6-EK314的电池座在底板正面的“BT1”位置。<br>
<span style="background:#CCCCCC">MY-IMX6-EK314 battery holder is located in“BT1”on front view of base board。</span><br>


=== 测试方法(test method ) ===
1）断电重启设备，查看当前系统时间和硬件时间。<br>
<span style="background:#CCCCCC">power off then reboot device,to check the time of system and hardware。</span><br>
*查看当前系统时钟命令如下：<br>
<span style="background:#CCCCCC">command to check clock of current system as below</span><br>
<span style="background:#ffff00">＃ date<br></span>

*系统输出信息如下：<br>
<span style="background:#CCCCCC">message outputed by system as below：</span><br>
<span style="background:#c0c0c0">Thu Aug  6 05:35:17 UTC 2015</span><br>

2）查看当前RTC芯片时钟命令如下：<br>
<span style="background:#CCCCCC">command to check clock of RTC chip as below：</span><br>
<span style="background:#ffff00">＃ hwclock	<br></span>

*系统输出信息如下：<br>
<span style="background:#CCCCCC">message outputed by system as below：</span><br>
<span style="background:#c0c0c0">Thu Aug  6 05:35:59 2015  0.000000 seconds</span><br>
3）设置系统时钟，并同步到RTC芯片<br>
<span style="background:#CCCCCC">set system clock and synchronously set to RTC chip</span><br>

*设置系统时钟命令参考如下：<br>
<span style="background:#CCCCCC">command to set system clock are with below reference：</span><br>
<span style="background:#ffff00">＃ date -s "2015-08-20 12:34:56"<br></span>
	
*将系统时钟写入硬件时钟命令如下：<br>
<span style="background:#CCCCCC">command to write system clock into hardware as below：</span><br>
<span style="background:#ffff00">＃ hwclok –w<br></span>
4）断电重启评估板，查看当前系统时钟和硬件时钟<br>
<span style="background:#CCCCCC">power off and reboot evaluation board，to check current system clock and hardware clock</span><br>
请参考第1步<br>
<span style="background:#CCCCCC">please refer to step 1</span><br>
5）测试结果<br>
<span style="background:#CCCCCC">test Results</span><br>
执行第3步以后看到的时钟为新设定的时钟。<br>
<span style="background:#CCCCCC">it will be a newly-set clock after execution until step3。</span><br>


===  附图(figures) ===
下图为测试方法中步骤1和2的截图<br>
<span style="background:#CCCCCC">below image is screenshots for step1 and step 2 in the test</span><br>
[[文件:MY-IMX6 Linux-3.14_2.11.3.1 .png]]<br>
下图为测试方法中步骤3的截图<br>
<span style="background:#CCCCCC">below image is screenshots for step3 in the test</span><br>
[[文件:MY-IMX6 Linux-3.14_2.11.3.2.png]]<br>


== '''WatchDog测试(WatchDog test)''' ==
=== 测试说明(test instruction) ===
WatchDog测试包括2项：一项是复位测试，一项是喂狗测试。<br>
<span style="background:#CCCCCC">WatchDog test includes two items：one is reset test，the other is feed dog test。</span><br>


===  复位测试(reset test) ===
1）测试说明<br>
<span style="background:#CCCCCC">test instruction</span><br>
复位测试将启动WatchDog，但是并不喂狗，超时后系统将会复位。<br>
<span style="background:#CCCCCC">reset test will boot WatchDog，but doesn't feed dog，system will reset when timeout。</span><br>

2）执行测试<br>
<span style="background:#CCCCCC">execute test</span><br>
<span style="background:#ffff00">＃ /unit_tests/wdt_driver_test.out 10 15 1<br></span>

3）测试结果<br>
<span style="background:#CCCCCC">test result</span><br>
运行测试命令后等待10秒后，WatchDog超时，系统被复位。将会在终端看到系统重新启动输出的信息。<br>
<span style="background:#CCCCCC">wait for 10 seconds after running of test command，WatchDog timeout，system is resetted。you can see message outputed by system rebooting on terminal。</span><br>
[[文件:MY-IMX6 Linux-3.14_2.12.2.1 .png]]<br>
===  喂狗测试(feed dog test) ===

1）测试说明<br>
<span style="background:#CCCCCC">test instruction</span><br>
喂狗测试将启动WatchDog，并且每2秒钟进行1次喂狗，系统将不会因为WatchDog超时而复位。<br>
<span style="background:#CCCCCC">feeding dog test will boot WatchDog，and feed dog every 2 second，system won't reset because of WatchDog timeout。</span><br>

2）执行测试<br>
<span style="background:#CCCCCC">execute test</span><br>
*启动WatchDog<br>
<span style="background:#CCCCCC">boot WatchDog</span><br>
<span style="background:#ffff00">＃ /unit_tests/wdt_driver_test.out 4 2 1 &<br></span>

*查看当前时间<br>
<span style="background:#CCCCCC">check current time</span><br>
<span style="background:#ffff00">＃ date<br></span>
[[文件:MY-IMX6 Linux-3.14_2.12.3.1 .png]]<br>

3）验证<br>
<span style="background:#CCCCCC">verify</span><br>
*查看当前时间<br>
<span style="background:#CCCCCC">check current time</span><br>
经过几分钟之后，系统依然没有复位。我们再查看当前时间。<br>
<span style="background:#CCCCCC">after a few minutes,if system hasn't resetted yet,re-check current time。</span><br>
<span style="background:#ffff00">＃ date<br></span>

*停止喂狗<br>
<span style="background:#CCCCCC">stop feeding dog</span><br>
这时我们终止Watchdog测试程序，这样就没有程序进行喂狗了，系统将会在超时时间（这里是4秒）内复位。<br>
<span style="background:#CCCCCC">when we stop Watchdog test program，then there won't be program to feed dog，system will reset in 4 seconds when timeout。</span><br>
<span style="background:#ffff00">＃ pkill wdt_driver_test<br></span>
[[文件:MY-IMX6 Linux-3.14_2.12.3.2 .png]]<br>


== '''SPI测试(SPI test) ''' ==
MY-IMX6-EK200上有两组SPI接口。<br>
<span style="background:#CCCCCC">MY-IMX6-EK200上has two groups of SPI interfaces。</span><br>
MY-IMX6-EK314上有两组SPI接口。<br>
<span style="background:#CCCCCC">MY-IMX6-EK314 has two groups of SPI interfaces。</span><br>


=== 接口属性(interface property) ===
测试需要用到SPI接口的MISO和MOSI管脚，在下表中列出。<br>
<span style="background:#CCCCCC">pins of MISO and MOSI need to be used for test,listed as below。</span><br>
<div>
{| class="wikitable"
|-
!span style="color:#FFFFFF;background:#000080"|评估板型号<br>(evaluation board model no.)		
!span style="color:#FFFFFF;background:#000080"|SPIx	
!span style="color:#FFFFFF;background:#000080"|MISO	
!span style="color:#FFFFFF;background:#000080"|MOSI
|-
|rowspan=2|MY-IMX6-EK200	
|SPI1	
|J7:7	
|J7:9
|-
|SPI2	
|J7:8	
|J7:10
|-
|rowspan=2|MY-IMX6-EK314	
|SPI1	
|J13:6	
|J13:12
|-
|SPI2	
|J13:7	
|J13:11
|}
</div>

=== 测试说明(test specification) ===
1）采用SPI自发送（输出）自接收（输入）的方式。<br>
<span style="background:#CCCCCC">adopt way of SPI self-sending（output）self-receiving（input)。</span><br>
<span style="color:#ff0000">注意：测试需要短接评估板的管脚，如果不确定自己能正确短接的请找硬件工程师支持，否则可能会损坏评估板。</span><br>
<span style="background:#CCCCCC">note：the test need a short connection of evaluation board pins,if you are not sure of how to conduct this kind of connection,please ask hardware engineer for a support,otherwise it may cause a damage of evaluation board。</span><br>

2）与SPI测试程序匹配的SPI接口是SPI2，所以我们的SPI测试是测试SPI2。<br>
<span style="background:#CCCCCC">SPI port which is matched up with SPI test program is SPI2，e.g.SPI test is SPI2 test。</span><br>

=== 测试方法(test method) ===
1）准备测试<br>
<span style="background:#CCCCCC">prepare test</span><br>
短接SPI2的MISO和MOSI管脚。<br>
<span style="background:#CCCCCC">short connect MISO pin and MOSI pin of SPI2。</span><br>
2）执行测试<br>
<span style="background:#CCCCCC">execute test</span><br>
<span style="background:#ffff00">＃ ~/my-demo/linux-3.14.52/spidev_test.out -D /dev/spidev1.0<br></span>
3）测试结果<br>
<span style="background:#CCCCCC">test result</span><br>
如果SPI正常，在终端上会看到如下字符：<br>
<span style="background:#CCCCCC">if SPI is normal,you can see following charaters on terminal：</span><br>
FF FF FF FF FF FF <br>
40 00 00 00 00 95 <br>
FF FF FF FF FF FF <br>
FF FF FF FF FF FF <br>
FF FF FF FF FF FF <br>
DE AD BE EF BA AD <br>
F0 0D<br>


=== 附图(figures) ===
[[文件:MY-IMX6 Linux-3.14_2.13.4.1 .png]]<br>
== '''CAN接口测试(CAN interface test) ''' ==
MY-IMX6-EK200上有两组CAN接口。<br>
<span style="background:#CCCCCC">MY-IMX6-EK200 has two groups of CAN interfaces。</span><br>
MY-IMX6-EK314上有两组CAN接口。<br>
<span style="background:#CCCCCC">MY-IMX6-EK314 has two groups of CAN interfaces。</span><br>

=== 接口属性(interface property) ===
<div>
{| class="wikitable"
|-
!span style="color:#FFFFFF;background:#000080"|评估板型号<br>(evaluation model no.)		
!span style="color:#FFFFFF;background:#000080"|CANx	
!span style="color:#FFFFFF;background:#000080"|信号:CAN_L<br>(signal:CAN_L)		
!span style="color:#FFFFFF;background:#000080"|信号:CAN_H<br>(signal:CAN_H)		
!span style="color:#FFFFFF;background:#000080"|系统设备<br>(system device)	
|-
|rowspan=2|MY-IMX6-EK200	
|CAN1	
|J19:1	
|J19:2	
|can0
|-
|CAN2	
|J16:1	
|J16:2	
|can1
|-
|rowspan=2|MY-IMX6-EK314	
|CAN1	
|J17:1	
|J17:2	
|can0
|-
|CAN2	
|J15:1	
|J15:2	
|can1
|}
</div>

=== 测试说明(test instruction) ===
采用CAN1发送，CAN0接收的方式。<br>
<span style="background:#CCCCCC">adopt way of sending with CAN1 and receiving with CAN0。</span><br>

=== 测试方法(test method) ===
1）接口连接<br>
<span style="background:#CCCCCC">interface connection</span><br>
<span style="color:#ff0000">注意：这一步需要连接评估板的管脚，如果不确定自己能正确连接的请找硬件工程师支持，否则可能会损坏评估板。</span><br>
<span style="background:#CCCCCC"><span style="color:#ff0000">note：this step need a short connection of evaluation board pins,if you are not sure of how to conduct this kind of connection,please ask hardware engineer for a support,otherwise it may cause a damage of evaluation board。</span></span><br>
将CAN1的CAN_L与CAN2的CAN_L连接。<br>
<span style="background:#CCCCCC">connect CAN1的CAN_L with CAN2的CAN_L。</span><br>
将CAN1的CAN_H与CAN2的CAN_H连接。<br>
<span style="background:#CCCCCC">connect CAN1的CAN_H with CAN2的CAN_H。</span><br>

2）执行测试<br>
<span style="background:#CCCCCC">execute test</span><br>
配置CAN0<br>
<span style="background:#CCCCCC">configure CAN0</span><br>
<span style="background:#ffff00">＃ ip link set can0 up type can bitrate 125000<br></span>
配置CAN1<br>
<span style="background:#CCCCCC">configure CAN1</span><br>
<span style="background:#ffff00">＃ ip link set can1 up type can bitrate 125000<br></span>
配置CAN0接收<br>
<span style="background:#CCCCCC">configure CAN0 receiving</span><br>
<span style="background:#ffff00">＃ candump can0 &<br></span>
CAN1发送<br>
<span style="background:#CCCCCC">CAN1 sending</span><br>
<span style="background:#ffff00">＃ cansend can1 1F334455<span style="background:#ffff00">＃1122334455667788<br></span>

=== 附图(figure) ===
[[文件:MY-IMX6 Linux-3.14_2.14.4.1 .png]]<br>


== '''WIFI测试(WIFI test)''' ==
insmod ~/my-demo/linux-3.14.52/8188eu-myimx6.ko<br>
insmod ~/8188eu-myimx6.ko<br>
wpa_passphrase WIFI名称 WIFI密码 > /etc/wpa_supplicant.conf<br>
<span style="background:#CCCCCC">wpa_passphrase WIFI name WIFI password > /etc/wpa_supplicant.conf</span><br>
wpa_supplicant -Dwext -iwlan0 -c/etc/wpa_supplicant.conf -B<br>
udhcpc -i wlan0<br>

== '''IPU测试(IPU test)''' ==
=== 测试说明(test instruction) ===
整个IPU测试过程完成需要十几分钟。<br>
<span style="background:#CCCCCC">the whole IPU test will take over ten minutes。</span><br>

=== 测试方法(test method) ===
1）执行测试<br>
<span style="background:#CCCCCC">execute test</span><br>
进入测试程序所在目录（一定要进入测试程序所在目录才能正常执行测试脚本）<br>
<span style="background:#CCCCCC">enter directory where test program is located（must enter directory where test program is locased for a normal test script）</span><br>
<span style="background:#ffff00">＃ cd /unit_tests/<br></span>
执行测试脚本<br>
<span style="background:#CCCCCC">execute test script</span><br>
<span style="background:#ffff00">＃ ./autorun-ipu.sh<br></span>
2）测试结果<br>
<span style="background:#CCCCCC">test result</span><br>
在整个测试过程中，可以看到显示屏显示的内容在不停的变化。<br>
<span style="background:#CCCCCC">in the whole test process，you can see a constant change of content on the display screen。</span><br>
测试完成后，在终端上可以看到类似如下信息：<br>
<span style="background:#CCCCCC">after test,you can see message like below on terminal：</span><br>
test stop at Thu Jan 1 00:33:38 UTC 1970<br>


=== 附图(figures) ===
[[文件:MY-IMX6 Linux-3.14_2.15.3.1 .png]]<br>
<br>
[[文件:MY-IMX6 Linux-3.14_2.15.3.2 .png]]<br>


== '''GPU测试(GPU test)''' ==
=== 测试说明(test instruction) ===
验证GPU功能。<br>
<span style="background:#CCCCCC">verify functions of GPU。</span><br>

=== 测试方法(test method) ===
*执行测试命令<br>
<span style="background:#CCCCCC">execute test command</span><br>
<span style="background:#ffff00">＃ cd /opt/viv_samples/vdk/ && ./tutorial3 -f 100<br></span>
<span style="background:#ffff00">＃ cd /opt/viv_samples/vdk/ && ./tutorial4_es20 -f 100<br></span>
<span style="background:#ffff00">＃ cd /opt/viv_samples/tiger/ &&./tiger<br></span>

*测试过程<br>
<span style="background:#CCCCCC">test process</span><br>
执行测试命令时，可以看到显示屏显示的内容在变化。更多请参照/unit_test/gpu.sh<br>
<span style="background:#CCCCCC">after execution of test commands，you can see a constant change of content on the display screen。for more details please refer to /unit_test/gpu.sh</span><br>


=== 附图(figure) ===
[[文件:MY-IMX6 Linux-3.14_2.16.3.1 .png]]<br>
== '''VPU测试(VPU test)''' ==
=== 测试说明(test instruction) ===
测试过程将使用VPU解码视频文件并输出到显示设备。<br>
<span style="background:#CCCCCC">in the test,vedio file will be decoded with VPU and outputed to the display device。</span><br>


=== 测试方法(test method) ===
*执行测试<br>
<span style="background:#CCCCCC">execute test</span><br>
进入测试程序所在目录（一定要进入测试程序所在目录才能正常执行测试脚本）<br>
<span style="background:#CCCCCC">enter directory where test program is located（must enter directory where test program is locased for a normal test script）</span><br>
<span style="background:#ffff00">＃ cd /unit_tests/<br></span>

*执行测试脚本<br>
<span style="background:#CCCCCC">execute test script</span><br>
<span style="background:#ffff00">＃ ./autorun-vpu.sh<br></span>

*测试现象<br>
<span style="background:#CCCCCC">test phenomenon</span><br>
在整个测试过程中，从显示屏上可以看到VPU解码的视频。<br>
<span style="background:#CCCCCC">in the whole test process，you can see the vedio decoded by VPU on the display screen。</span><br>

	
=== 附图(figure) ===
[[文件:MY-IMX6 Linux-3.14_2.17.3.1 .png]]<br>

= '''显示功能测试(reveal function test)''' =
----
说明：每项显示功能测试都需要重启系统进入到u-boot命令行，输入命令并按确认键。<br>
<span style="background:#CCCCCC">instruction：need to re-boot system to enter u-boot command line for each reveal function test，enter command and press Enter key。</span><br>
示例如下：<br>
<span style="background:#CCCCCC">example as below：</span><br>
[[文件:MY-IMX6 Linux-3.14_3.0.0.1 .png]]<br>


== '''单屏显示(single screen display)''' ==
说明：输入命令并按确定键，观察系统启动过程中显示屏的显示内容，即可看到Linux Logo。<br>
<span style="background:#CCCCCC">instruction：enter command and press Enter key，observe the displayed content on screen in the course of system booting，Linux Logo can be seen。</span><br>


=== LVDS1 ===
=> setenv display ${fb0_lvds1}<br>
=> saveenv; boot<br>
=== LVDS0 ===
=> setenv display ${fb0_lvds0}<br>
=> saveenv; boot<br>
=== HDMI ===
=> setenv display ${fb0_hdmi}<br>
=> saveenv; boot<br>
<span style="color:#ff0000">注意：如果使用HDMI转VGA的，请确认转接装置是否需要供电。</span><br>
<span style="background:#CCCCCC"><span style="color:#ff0000">note：if HDMI to VGA,please confirm whether need power supply to switching device 。</span><br></span>


=== RGB ===
=> setenv display ${fb0_lcd}<br>
=> saveenv; boot<br>
== '''双屏同步骤显示(dual screen synchronous display)''' ==
说明：输入命令并按确定键，在内核启动过程中可以看到两个屏幕都显示Linux Logo，并且其它对显示屏的操作也会同样显示在两个屏幕上。<br>
<span style="background:#CCCCCC">instruction：enter command and press Enter key，Linux Logo is displayed on the two screens in kernel booting，and other operations to screen is also displayed on the two screens。</span><br>


=== LVDS1+LVDS0同步显示(LVDS1+LVDS0 synchronous display) ===
=> setenv display ${lvds_sync}<br>
=> saveenv; boot<br>

== '''双屏异步显示(dual screen asynchronous display)''' ==
=== 导入测试环境变量(lead in test environment variables) ===
<span style="background:#ffff00">＃ export GSTL=gst-launch-1.0<br></span>
<span style="background:#ffff00">＃ export PLAYBIN=playbin<br></span>
<span style="background:#ffff00">＃ export GPLAY=gplay-1.0<br></span>
<span style="background:#ffff00">＃ export GSTINSPECT=gst-inspect-1.0<br></span>
<span style="background:#ffff00">＃ export MP4_FILE="/home/root/test.mp4"<br></span>

=== 会用到的测试命令(test commands probably to be used) ===
*播放视频到主显示屏<br>
<span style="background:#CCCCCC">play video to main display screen</span><br>
<span style="background:#ffff00">＃ $GSTL $PLAYBIN uri=file://$MP4_FILE video-sink="imxv4l2sink device=/dev/video17"<br></span>

*播放视频到第二显示屏<br>
<span style="background:#CCCCCC">play video to the second display screen</span><br>
<span style="background:#ffff00">＃ $GSTL $PLAYBIN uri=file://$MP4_FILE video-sink="imxv4l2sink device=/dev/video18"<br></span>

=== LVDS1作为主屏(LVDS1 as main screen) ===
*LVDS1+RGB双屏异步显示<br>
<span style="background:#CCCCCC">LVDS1+RGB dual screen asynchronous display</span><br>
=> setenv display ${fb0_lvds1} ${fb1_lcd}<br>
=> saveenv; boot<br>
*LVDS1+HDMI双屏异步显示<br>
<span style="background:#CCCCCC">LVDS1+HDMI dual screen asynchronous display</span><br>
=> setenv display ${fb0_lvds1} ${fb1_hdmi}<br>
=> saveenv; boot<br>

=== LVDS0作为主屏(LVDS0 as main screen) ===
*LVDS0+RGB双屏异步显示<br>
<span style="background:#CCCCCC">LVDS0+RGB dual screen asynchronous display</span><br>
=> setenv display ${fb0_lvds0} ${fb1_lcd}<br>
=> saveenv; boot<br>

*LVDS0+HDMI双屏异步显示<br>
<span style="background:#CCCCCC">LVDS0+HDMI dual screen asynchronous display</span><br>
=> setenv display ${fb0_lvds0} ${fb1_hdmi}<br>
=> saveenv; boot<br>

=== RGB作为主屏(RGB as main screen) ===
*RGB+LVDS1双屏异步显示：<br>
<span style="background:#CCCCCC">RGB+LVDS1 dual screen asynchronous display：</span><br>
=> setenv display ${fb0_lcd} ${fb1_lvds1}<br>
=> saveenv; boot<br>
*RGB+LVDS0双屏异步显示：<br>
<span style="background:#CCCCCC">RGB+LVDS0 dual screen asynchronous display：</span><br>
=> setenv display ${fb0_lcd} ${fb1_lvds0}<br>
=> saveenv; boot<br>

=== HDMI作为主屏(HDMI as main screen) ===
*HDMI+LVDS1双屏异步显示<br>
<span style="background:#CCCCCC">HDMI+LVDS1 dual screen asynchronous display</span><br>
=> setenv display ${fb0_hdmi} ${fb1_lvds1}<br>
=> saveenv; boot<br>

*HDMI+LVDS0双屏异步显示<br>
<span style="background:#CCCCCC">HDMI+LVDS0 dual screen asynchronous display</span><br>
=> setenv display ${fb0_hdmi} ${fb1_lvds0}<br>
=> saveenv; boot<br>