查看“MYZR-A40I-EK204 Linux-3.10.65 测试手册”的源代码

### 网口测试

　　【测试说明】：采用开发板向PC发送ICMP报文的方式进行测试<br>
　　【接口标识】：10M/100M Ethernet-1<br>
　　【系统接口】：eth0<br>
**测试操作**<br>
　　配置电脑有线网卡IP为 192.168.137.99。<br>
　　把开发板的这个网口用网线跟电脑网口连接起来。<br>
　　配置开发板网口：<br>

<pre>
=====> 输入指令:
ifconfig eth0 192.168.137.81
</pre>

　　测试网口：<br>

<pre>
=====> 输入指令:
ping 192.168.137.99 -c 2 -w 4 
=====> 输出信息：
PING 192.168.137.99 (192.168.137.99) 56(84) bytes of data.
64 bytes from 192.168.137.99: icmp_seq=1 ttl=128 time=0.570 ms
64 bytes from 192.168.137.99: icmp_seq=2 ttl=128 time=0.365 ms

--- 192.168.137.99 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.365/0.467/0.570/0.104 ms
</pre>

**测试结果**<br>
　　“0% packet loss”表示测试通过。<br>



### USB接口测试

　　【测试说明】：采用插拔USB存储设备（U盘）的方式进行测试<br>
　　【接口标识】：USB HOST<br>
　　【系统接口】：/sys/bus/usb/<br>
**测试方法**<br>
　　将USB设备插入底板USB接口，系统会输出类似如下信息:<br>

<pre>
root@TinaLinux:/# [  795.551264] ehci_irq: highspeed device connect
[  795.910089] usb 1-1: new high-speed USB device number 4 using sunxi-ehci
[  796.081676] usb-storage 1-1:1.0: USB Mass Storage device detected
[  796.110678] scsi1 : usb-storage 1-1:1.0
[  797.111474] scsi 1:0:0:0: Direct-Access     Kingston DataTraveler 3.0 PMAP PQ: 0 ANSI: 6
[  797.140157] sd 1:0:0:0: [sda] 60604416 512-byte logical blocks: (31.0 GB/28.8 GiB)
[  797.156371] sd 1:0:0:0: [sda] Write Protect is off
[  797.161892] sd 1:0:0:0: [sda] Mode Sense: 45 00 00 00
[  797.169966] sd 1:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[  797.251578]  sda: sda1
[  797.260467] CPU1: Booted secondary processor
[  797.271003] sd 1:0:0:0: [sda] Attached SCSI removable disk
[  797.489583]  sda: sda1
[  797.622161] FAT-fs (sda1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[  797.860430] CPU2: Booted secondary processor
[  797.974464] FAT-fs (sda1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
</pre>

　　将USB设备从底板拔出，系统会输出类似如下信息：<br>

<pre>
[  810.557018] ehci_irq: highspeed device disconnect
[  810.562361] usb 1-1: USB disconnect, device number 4
[  810.670680] udevd[2861]: inotify_add_watch(6, /dev/sda, 10) failed: No such file or directory
</pre>

**测试结果**<br>
　　USB存储设备插拔时系统输出如上类似信息即表示正常。<br>

### TF接口测试

　　【测试说明】：采用插入并识别TF卡的方式进行测试<br>
　　【接口标识】：SD3<br>
　　【系统接口】：/sys/bus/mmc/<br>
**测试方法**<br>
　　把TF卡插入到这个接口：<br>

<pre>
=====> 输出信息：
root@TinaLinux:/# [   80.560114] sunxi-mmc sdc0: sdc set ios: clk 0Hz bm PP pm UP vdd 22 width 1 timing LEGACY(SDR12) dt B
[   80.590139] sunxi-mmc sdc0: sdc set ios: clk 400000Hz bm PP pm ON vdd 22 width 1 timing LEGACY(SDR12) dt B
[   80.620937] sunxi-mmc sdc0: smc 1 p0 err, cmd 52, RTO !!
[   80.627845] sunxi-mmc sdc0: smc 1 p0 err, cmd 52, RTO !!
[   80.634740] sunxi-mmc sdc0: sdc set ios: clk 400000Hz bm PP pm ON vdd 22 width 1 timing LEGACY(SDR12) dt B
[   80.653529] sunxi-mmc sdc0: sdc set ios: clk 400000Hz bm PP pm ON vdd 22 width 1 timing LEGACY(SDR12) dt B
[   80.670770] sunxi-mmc sdc0: smc 1 p0 err, cmd 5, RTO !!
[   80.677415] sunxi-mmc sdc0: smc 1 p0 err, cmd 5, RTO !!
[   80.687485] sunxi-mmc sdc0: smc 1 p0 err, cmd 5, RTO !!
[   80.694393] sunxi-mmc sdc0: smc 1 p0 err, cmd 5, RTO !!
[   80.702493] sunxi-mmc sdc0: sdc set ios: clk 400000Hz bm PP pm ON vdd 15 width 1 timing LEGACY(SDR12) dt B
[   80.714629] sunxi-mmc sdc0: sdc set ios: clk 400000Hz bm PP pm ON vdd 15 width 1 timing LEGACY(SDR12) dt B
[   80.733353] sunxi-mmc sdc0: sdc set ios: clk 400000Hz bm PP pm ON vdd 15 width 1 timing LEGACY(SDR12) dt B
[   80.750809] CPU1: Booted secondary processor
[   80.943958] mmc1: host does not support reading read-only switch. assuming write-enable.
[   80.958125] sunxi-mmc sdc0: sdc set ios: clk 400000Hz bm PP pm ON vdd 15 width 1 timing SD-HS(SDR25) dt B
[   80.970520] sunxi-mmc sdc0: sdc set ios: clk 50000000Hz bm PP pm ON vdd 15 width 1 timing SD-HS(SDR25) dt B
[   80.982111] sunxi-mmc sdc0: sdc set ios: clk 50000000Hz bm PP pm ON vdd 15 width 4 timing SD-HS(SDR25) dt B
[   80.993313] mmc1: new high speed SDHC card at address aaaa
[   80.999904] mmcblk1: mmc1:aaaa SC16G 14.8 GiB 
[   81.013518]  mmcblk1:
[   81.016702] sndhdmi sndhdmi: ASoC: CPU DAI (null) not registered
[   81.023541] sndhdmi sndhdmi: snd_soc_register_card() failed: -517
[   81.030614] platform sndhdmi: Driver sndhdmi requests probe deferral
[   81.103148] FAT-fs (mmcblk1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
</pre>

弹出TF卡：<br>

<pre>
=====> 输出信息：
root@TinaLinux:/# [  147.600144] sunxi-mmc sdc0: smc 1 p0 err, cmd 13, RTO !!
[  147.606083] sunxi-mmc sdc0: smc 1 p0 err, cmd 13, RTO !!
[  147.612251] sunxi-mmc sdc0: smc 1 p0 err, cmd 13, RTO !!
[  147.618180] sunxi-mmc sdc0: smc 1 p0 err, cmd 13, RTO !!
[  147.624573] mmc1: card aaaa removed
[  147.637669] sunxi-mmc sdc0: sdc set ios: clk 0Hz bm OD pm OFF vdd 0 width 1 timing LEGACY(SDR12) dt B
</pre>

TF存储设备插拔时系统输出如上类似信息即表示正常。<br>



### 标准GPIO测试

　　【测试说明】：控制GPIO的输出电平<br>
　　【接口标识】：GPIO/SD2<br>
　　【系统接口】：/sys/class/gpio/<br>

**GPIO输出低电平测试**<br>
　　配置P26:2为输出低电平的操作方法：<br>

<pre>
=====> 输入指令:
OUT_IO_OUT_NUM=270
echo ${OUT_IO_OUT_NUM} > /sys/class/gpio/export    
echo "out" > /sys/class/gpio/gpio${OUT_IO_OUT_NUM}/direction  
echo 0 > /sys/class/gpio/gpio${OUT_IO_OUT_NUM}/value 
</pre>

　　用万用表测试管脚P26:2，电压为0V，则表示OK<br>
**GPIO输出高电平测试**<br>
　　配置P26:2为输出高电平的操作方法：<br>

<pre>
=====> 输入指令:
OUT_IO_OUT_NUM=270
echo ${OUT_IO_OUT_NUM} > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio${OUT_IO_OUT_NUM}/direction  
echo 1 > /sys/class/gpio/gpio${OUT_IO_OUT_NUM}/value
</pre>

　　用万用表测试管脚P26:2，电压为3.3V，则表示OK<br>
**其它**<br>
　　控制 GPIO 输出低电平的指令：<br>

<pre>
=====> 输入指令:
echo 0 > /sys/class/gpio/gpio${OUT_IO_OUT_NUM}/value   
</pre>

　　控制 GPIO 输出高电平的指令：<br>

<pre>
=====> 输入指令:
echo 1 > /sys/class/gpio/gpio${OUT_IO_OUT_NUM}/value 
</pre>

### GPIO-LED测试

　　【测试说明】：控制LED<br>
　　【接口标识】：LED<br>
　　【系统接口】：/sys/class/leds/led*<br>
**测试操作**<br>

		控制LED关闭：<br>

<pre>
echo 1 > /sys/class/leds/led1/brightness
echo 1 > /sys/class/leds/led2/brightness
echo 1 > /sys/class/leds/led3/brightness
</pre>

		控制LED开启：<br>

<pre>
echo 0 > /sys/class/leds/led1/brightness
echo 0 > /sys/class/leds/led2/brightness
echo 0 > /sys/class/leds/led3/brightness
</pre>

### GPIO-KEY测试

　　【测试说明】：使用 evtest 进行测试<br>
　　【接口标识】：KEY4, KEY4, KEY3, KEY2, KEY1<br>
　　【系统接口】：/dev/input/event0<br>
**测试操作**<br>
　　运行 evtest 准备测试<br>

<pre>
=====> 输入指令:
evtest 

=====> 输出信息：
No device specified, trying to scan all of /dev/input/event*
Available devices:
/dev/input/event0:	sunxi-keyboard
/dev/input/event1:	sunxi-ir
/dev/input/event2:	axp22-powerkey
Select the device event number [0-2]: 
</pre>

		选择 sunxi-keyboard 所对应的序号<br>

<pre>
=====> 输入指令:
0

=====> 输出信息：
Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x1 product 0x1 version 0x100
Input device name: "sunxi-keyboard"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 28 (KEY_ENTER)
    Event code 102 (KEY_HOME)
    Event code 114 (KEY_VOLUMEDOWN)
    Event code 115 (KEY_VOLUMEUP)
    Event code 139 (KEY_MENU)
Properties:
Testing ... (interrupt to exit)
</pre>

		按动开发板上的按键<br>

<pre>
Event: time 1262304222.998060, type 1 (EV_KEY), code 102 (KEY_HOME), value 1
Event: time 1262304222.998060, -------------- SYN_REPORT ------------
Event: time 1262304223.162092, type 1 (EV_KEY), code 102 (KEY_HOME), value 0
Event: time 1262304223.162092, -------------- SYN_REPORT ------------
Event: time 1262304223.533178, type 1 (EV_KEY), code 28 (KEY_ENTER), value 1
Event: time 1262304223.533178, -------------- SYN_REPORT ------------
Event: time 1262304223.697226, type 1 (EV_KEY), code 28 (KEY_ENTER), value 0
Event: time 1262304223.697226, -------------- SYN_REPORT ------------
Event: time 1262304224.622976, type 1 (EV_KEY), code 139 (KEY_MENU), value 1
Event: time 1262304224.622976, -------------- SYN_REPORT ------------
Event: time 1262304224.923742, type 1 (EV_KEY), code 139 (KEY_MENU), value 0
Event: time 1262304224.923742, -------------- SYN_REPORT ------------
Event: time 1262304225.818243, type 1 (EV_KEY), code 114 (KEY_VOLUMEDOWN), value 1
Event: time 1262304225.818243, -------------- SYN_REPORT ------------
Event: time 1262304226.083851, type 1 (EV_KEY), code 114 (KEY_VOLUMEDOWN), value 0
Event: time 1262304226.083851, -------------- SYN_REPORT ------------
Event: time 1262304227.911909, type 1 (EV_KEY), code 115 (KEY_VOLUMEUP), value 1
Event: time 1262304227.911909, -------------- SYN_REPORT ------------
Event: time 1262304228.165801, type 1 (EV_KEY), code 115 (KEY_VOLUMEUP), value 0
Event: time 1262304228.165801, -------------- SYN_REPORT ------------
</pre>

**测试结果**<br>
　　当发生按键时，evtest 会输出相应的信息。<br>

### 串口测试（RS232）

　　【测试说明】：采用串口自发自收的方式进行测试<br>
　　【接口标识】：UART<br>
　　【系统设备】：/dev/ttyS4<br>
**测试操作**<br>
　　短接串口4的发送发接收管脚（RS232的TX和RX管脚）<br>
　　执行测试指令：<br>

<pre>
=====> 输入指令:
serial_test /dev/ttyS4 "www.myzr.com.cn"

=====> 输出信息：
Starting send data...finish
Starting receive data:
ASCII: 0x77 	 Character: w 
ASCII: 0x77 	 Character: w 
ASCII: 0x77 	 Character: w 
ASCII: 0x2e 	 Character: . 
ASCII: 0x6d 	 Character: m 
ASCII: 0x79 	 Character: y 
ASCII: 0x7a 	 Character: z 
ASCII: 0x72 	 Character: r 
ASCII: 0x2e 	 Character: . 
ASCII: 0x63 	 Character: c 
ASCII: 0x6f 	 Character: o 
ASCII: 0x6d 	 Character: m 
ASCII: 0x2e 	 Character: . 
ASCII: 0x63 	 Character: c 
ASCII: 0x6e 	 Character: n 
ASCII: 0x0 	 Character: 
</pre>

### 串口测试（RS485）

　　【测试说明】：采用串口自发自收的方式进行测试<br>
　　【接口标识】：UART<br>
　　【系统设备】：/dev/ttyS5/7<br>
**测试操作**<br>
　　短接串口5的发送管脚与串口7的接收管脚（485-1的TX和485-2的RX管脚）<br>

		短接串口7的发送管脚与串口5的接收管脚（485-2的TX和485-1的RX管脚）		<br>

　　执行测试指令：<br>

<pre>
=====> 输入指令:
cat /dev/ttyS5 &
echo www.myzr.com.cn > /dev/ttyS7
=====> 输出信息:
www.myzr.com.cn

=====> 输入指令:
killall cat
cat /dev/ttyS7 &
echo www.myzr.com.cn > /dev/ttyS5
=====> 输出信息:
www.myzr.com.cn
</pre>

### RTC 测试

　　【测试说明】：读取并设置时间，断电重启后检查时间是否正确<br>
　　【接口标识】：无<br>
　　【系统设备】：/sys/class/rtc/<br>
**测试操作**<br>

  　　1. 断电重启设备，查看当前系统时间和硬件时间：<br>

<pre>
=====> 输入指令: 
date

=====> 输出信息：
Fri Jan  1 08:00:29 CST 2010
</pre>

  　　2. 查看当前RTC芯片时钟：<br>

<pre>
=====> 输入指令: 
hwclock 

=====> 输出信息：
Fri Jan  1 00:00:41 2010  0.000000 seconds
</pre>

  　　3. 设置系统时钟，并同步到RTC芯片<br>

<pre>
=====> 输入指令: 
date -s "2021-05-14 12:34:56" 

=====> 输出信息：
Fri May 14 12:34:59 CST 2021
</pre>

  　　4. 将系统时钟写入硬件时钟<br>

<pre>
=====> 输入指令:
hwclock -w  
</pre>

**测试结果**<br>

  　　1. 断电重启评估板，查看当前系统时钟和硬件时钟<br>

<pre>
=====> 输入指令:
date

=====> 输出信息：
Fri May 14 12:35:34 2021  0.000000 seconds
</pre>

  　　2. 查看当前RTC芯片时钟<br>

<pre>
=====> 输入指令:
hwclock  

=====> 输出信息：
Fri May 14 12:35:37 2021  0.000000 seconds
</pre>

　　可以看到我们得到的时间与设置的时间基本相同。<br>

### 音频播放测试

　　【测试说明】：通过播放音频文件验证评估板的音频播放功能。<br>

**测试操作**<br>
　　把耳机插入开发板的音频口。<br>
　　执行测试命令：<br>

<pre>
=====> 输入指令:
aplay /test/test.wav 
=====> 输出信息：
Playing WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono

</pre>

**测试结果**<br>
　　执行上面的测试命令后会听到音频设备输出的声音<br>

### 音频录音测试

　　【测试说明】：通过录音并播放录音文件验证评估板的音频录音功能。<br>
　　【接口标识】：MIC<br>

**测试操作**<br>

		执行测试命令：<br>

<pre>
=====> 输入指令:
arecord -d 5 -f S16_LE -t wav foobar.wav
=====> 输出信息：
Recording WAVE 'foobar.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, Mono
</pre>

		播放录音:<br>

<pre>
=====> 输入指令:
aplay foobar.wav

=====> 输出信息：
Playing WAVE 'foobar.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, Mono
</pre>

**测试结果**<br>
　　执行上面的测试命令后会听到播放的录音。<br>

### 显示测试

　　【测试说明】：执行显示程序。<br>
　　【接口标识】：lvds/lcd/dsi<br>
　　【系统设备】：fb0<br>

**测试操作**<br>

1. 关机后接上显示屏<br>
2. 执行命令<br>

<pre>
df_andi
</pre>



### WIFI测试

　　【测试说明】：使用RTL8723du作为无线网卡连接到WIFI AP。<br>
　　【接口标识】：WIFI、WIFI_ANT<br>
　　【系统设备】：wlan0<br>

**测试操作**<br>

  1. 确定“WIFI”标识处有贴上WIFI模块，否则无需进行测试。<br>
  2. 把WIFI天线连接到“WIFI_ANT”标识的接口上。<br>

<pre>
=====> 输入指令:
wifi_connect_ap_test MYZR-WIFI myzr2012
</pre>

MYZR-WIFI为WIFI名 myzr2012为密码<br>

测试连接<br>

<pre>
=====> 输入指令:
ping -I wlan0 www.baidu.com -c 2 -w 4

=====> 输出信息：
PING www.baidu.com (163.177.151.109): 56 data bytes
64 bytes from 163.177.151.109: seq=0 ttl=56 time=9.776 ms
64 bytes from 163.177.151.109: seq=1 ttl=56 time=9.620 ms

--- www.baidu.com ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max = 9.620/9.698/9.776 ms

</pre>

**测试结果**<br>
　　“0% packet loss”表示WIFI连接正常。<br>



### **蓝牙测试**

　　【测试说明】：扫描到蓝牙设备后，发送L2CAP回应请求并接收回答。<br>
　　【系统设备】：hci0<br>

  1. 确定“WIFI”标识处有贴上WIFI模块，否则无需进行测试。
  2. 把WIFI天线连接到“WIFI_ANT”标识的接口上。

配置蓝牙系统接口<br>



<pre>
=====> 输入指令:
hciconfig hci0 up
hciconfig hci0 piscan
hciconfig -a
</pre>

<pre>
hci0:	Type: BR/EDR  Bus: USB
	BD Address: 74:EE:2A:45:64:EC  ACL MTU: 1021:8  SCO MTU: 255:12
	UP RUNNING PSCAN ISCAN 
	RX bytes:1403 acl:0 sco:0 events:59 errors:0
	TX bytes:786 acl:0 sco:0 commands:59 errors:0
	Features: 0xff 0xff 0xff 0xfa 0xdb 0xbd 0x7b 0x87
	Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
	Link policy: RSWITCH HOLD SNIFF PARK 
	Link mode: SLAVE ACCEPT 
	Name: 'RTK_BT_4.1'
	Class: 0x000000
	Service Class[   54.305172] rtk_btcoex: BTCOEX hci_rev 0x82a8
es: Unspecified
	Device Class: [   54.311358] rtk_btcoex: BTCOEX lmp_subver 0x2df4
Miscellaneous, 
	HCI Version: 4.1 (0x7)  Revision: 0x82a8
	LMP Version: 4.1 (0x7)  Subversion: 0x2df4
	Manufacturer: Realtek Semiconductor Corporation (93)

</pre>

1. 查看板子蓝牙设备信息<br>

=====> 输入指令:<br>

<pre>
   hcitool dev
</pre>

=====> 输出信息：<br>

<pre>
   Devices:
   hci0    74:EE:2A:45:64:EC
</pre>

 　5. 扫描外部蓝牙设备<br>

=====> 输入指令:<br>

<pre>
   hcitool scan
</pre>

=====> 输出信息：<br>

<pre>
   Scanning ...
   ......
   7C:2A:DB:08:EF:70	Redmi K30 Pro
</pre>

1. 发送发送L2CAP包测试<br>

=====> 输入指令:<br>

<pre>
   l2ping  7C:2A:DB:08:EF:70 -c 2
</pre>

=====> 输出信息：<br>

<pre>
Ping: 7C:2A:DB:08:EF:70 from 74:EE:2A:45:64:EC (data size 44) ...
44 bytes from 7C:2A:DB:08:EF:70 id 0 time 7.89ms
44 bytes from 7C:2A:DB:08:EF:70 id 1 time 24.88ms
44 bytes from 7C:2A:DB:08:EF:70 id 2 time 9.80ms
^C3 sent, 3 received, 0% loss

</pre>

**测试结果**<br> 　“0% packet loss”表示蓝牙连接正常<br>

### **EC20 模块测试**

　　【测试说明】：4G连接成功后，开发板向外网发送ICMP报文来验证连接正常。<br>
　　【系统设备】：usb0<br>

**测试操作**<br>

　　1. 开发板断电，接上4G模块，接上天线并插入SIM卡后启动评估板。 <br>
　　2. 使用指令进行网络连接：<br>

=====> 输入指令:<br>

<pre>
   /etc/quectel-CM
</pre>

测试连接：<br>

=====> 输入指令:<br>

<pre>
   ping www.baidu.com -c 2 -w 4
</pre>

=====> 输出信息：<br>

<pre>
   PING www.a.shifen.com (183.232.231.172) from 10.77.19.81 ppp0: 56(84) bytes of data.
   64 bytes from 183.232.231.172: icmp_seq=1 ttl=56 time=197 ms
   --- www.a.shifen.com ping statistics ---
   1 packets transmitted, 1 received, 0% packet loss, time 0ms
   rtt min/avg/max/mdev = 197.497/197.497/197.497/0.000 ms
</pre>

**测试结果** 　<br>“0% packet loss”表示WIFI连接正常。<br>