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4 第四部分 扩展模块功能演示4.1 RTL8188 模块功能演示（WIFI Client）【测试说明】：使用RTL8188作为无线网卡连接到WIFI AP。
8 a) E/ W) H' J; ]* C6 n, {* p" O【接口标识】：WIFI、WIFI_ANT* N+ ]3 a8 S" b8 t2 @/ a
【系统设备】：wlan0
5 { _/ B) v3 b F p! r测试操作
" T6 k3 y: @' |5 Z" }: V1. 确定“WIFI”标识处有贴上WIFI模块，否则无需进行测试。
; i4 |8 V; i: O% J( Y$ E6 \. U2. 把WIFI天线连接到“WIFI_ANT”标识的接口上。1 u- R% c( u) a* `) G
3. 生成 SSID 的 WPA PSK 文件
+ t& T6 h6 E5 u: w3 F命令格式: wpa_passphrase <ssid> [passphrase] =====> 输入指令: wpa_passphrase MY-TEST-AP myzr2012 > /etc/wpa_supplicant.conf pkill wpa_supplicant 4. 连接 =====> 输入指令: wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf
$ D' M( h6 h/ m$ I=====> 输出信息： Successfully initialized wpa_supplicant RFkill: Cannot open RFKILL control device ==> rtl8188e_iol_efuse_patch IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready ...... 5. 获取 IP =====> 输入指令: udhcpc -i wlan0
/ J6 X& e% N# [7 o6 I=====> 输出信息： udhcpc (v1.23.1) started Sending discover... Sending select for 192.168.43.121... Lease of 192.168.43.121 obtained, lease time 3600 /etc/udhcpc.d/50default: Adding DNS 192.168.43.1 6. 测试连接 =====> 输入指令: ping -I wlan0 192.168.43.1 -c 2 -w 4 . a- A9 X4 V3 P. Z$ z" ^2 s
=====> 输出信息： PING 192.168.43.1 (192.168.43.1) from 192.168.43.130 wlan0: 56(84) bytes of data. 64 bytes from 192.168.43.1: icmp_seq=1 ttl=64 time=5.66 ms 64 bytes from 192.168.43.1: icmp_seq=2 ttl=64 time=9.22 ms
9 a% x$ L$ S( u5 m; W--- 192.168.43.1 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1000ms rtt min/avg/max/mdev = 5.663/7.444/9.226/1.783 ms 测试结果6 I3 ?! p j( O
“0% packet loss”表示WIFI连接正常。
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" L5 G1 f7 Z1 H. r4.2 RTL8188 模块功能演示（WIFI AP mode）
" u+ L) p1 \- K e! r【测试说明】：使用RTL8188作为WIFI AP，并把手机连接到此AP。
+ _$ @& O+ g6 X/ o% ?- j【接口标识】：WIFI、WIFI_ANT' O, G9 G- \2 ^7 t5 U
【系统设备】：wlan0
. J7 z; O4 Z- i Y9 Y9 |测试操作
) j' P. h( z; A! v1. 确定“WIFI”标识处有贴上WIFI模块，否则无需进行测试。. E+ A* y c0 E
2. 把WIFI天线连接到“WIFI_ANT”标识的接口上。
9 K* q8 Y J. x) u) P( a4 ^3. 为 wlan0 配置 IP： =====> 输入指令: ifconfig wlan0 192.168.99.1 U) u% \) k1 f+ P; \. }
=====> 输出信息： ==> rtl8188e_iol_efuse_patch IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready 4. 为 wlan0 启用 DHCP 服务： =====> 输入指令: touch /var/lib/misc/udhcpd.leases udhcpd -f /etc/my_udhcpd.conf & 4 |. Q) C7 g( V! [ C" y' o7 M
=====> 输出信息： [1] 469 udhcpd (v1.23.1) started 5. 为 wlan0 启用 Host-AP 功能 =====> 输入指令: hostapd /etc/my_hostapd.conf -B 1 R8 m1 @! R: S' T0 W: T
=====> 输出信息： Configuration file: /etc/my_hostapd.conf rfkill: Cannot open RFKILL control device Using interface wlan0 with hwaddr e0:b9:4d:7f:e4:40 and ssid "MY_HOSTAP_V25" RTL871X: set group key camid:1, addr:00:00:00:00:00:00, kid:1, type:AES wlan0: interface state UNINITIALIZED->ENABLED wlan0: AP-ENABLED 6. 客户端设备连接到 Host-AP
) v: ^& |+ t3 q至此，开发板的 Host-AP 功能已启用，客户端设备可搜索“MY_HOSTAP_V25”，通过密码“myzr2012”连接到此AP。* v- L3 S! x. q3 B3 R
测试结果/ A7 m2 ]8 T# s+ ~* c$ R
1. 设备连接成功时产生的信息 =====> 输出信息： Sending OFFER of 192.168.12.20 Sending OFFER of 192.168.12.20 Sending ACK to 192.168.12.20 2. 设备断开连接时产生的信息 =====> 输出信息： RTL871X: OnDeAuth(wlan0) reason=3, ta=b4:0b:44:f5:64:2f RTL871X: clear key for addr:b4:0b:44:f5:64:2f, camid:4
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4.3 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。
9 W! ]7 p, h8 v6 O+ _/ e【接口标识】：MINI_PCIE
x5 k1 o9 _6 ?6 P& l- c【系统设备】：eth2$ V" _" O# e! T, q' |* V
测试操作
' _ k. K% i9 v& p. V1. 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。; _/ ]/ s9 T h# b' ?' b3 S
2. 使用指令进行网络连接： =====> 输入指令: /my-demo/gcc-linaro-5.3-ARM/quectel-CM &
0 r, ?8 K' G, k" ?=====> 输出信息： [1] 540 [12-18_03:17:06:719] WCDMA<E_QConnectManager_Linux&Android_V1.1.34 [12-18_03:17:06:720] /my-demo/gcc-linaro-5.3-arm/quectel-CM profile[1] = (null)/(null)/(null)/0, pincode = (null) [12-18_03:17:06:723] Find /sys/bus/usb/devices/1-1.2 idVendor=2c7c idProduct=0125 [12-18_03:17:06:723] Find /sys/bus/usb/devices/1-1.2:1.4/net/eth2 [12-18_03:17:06:723] Find usbnet_adapter = eth2 [12-18_03:17:06:723] Find /sys/bus/usb/devices/1-1.2:1.4/GobiQMI/qcqmi2 [12-18_03:17:06:724] Find qmichannel = /dev/qcqmi2 [12-18_03:17:06:794] Get clientWDS = 7 [12-18_03:17:06:826] Get clientDMS = 8 [12-18_03:17:06:858] Get clientNAS = 9 [12-18_03:17:06:890] Get clientUIM = 10 [12-18_03:17:06:922] Get clientWDA = 11 [12-18_03:17:06:954] requestBaseBandVersion EC20CEFAR02A10M4G [12-18_03:17:07:050] requestGetSIMStatus SIMStatus: SIM_READY [12-18_03:17:07:082] requestGetProfile[1] cmnet///0 [12-18_03:17:07:114] requestRegistrationState2 MCC: 460, MNC: 0, PS: Attached, DataCap: LTE [12-18_03:17:07:146] requestQueryDataCall IPv4ConnectionStatus: DISCONNECTED [12-18_03:17:07:223] requestRegistrationState2 MCC: 460, MNC: 0, PS: Attached, DataCap: LTE [12-18_03:17:07:274] requestSetupDataCall WdsConnectionIPv4Handle: 0x8777e7a0 [12-18_03:17:07:370] requestQueryDataCall IPv4ConnectionStatus: CONNECTED [12-18_03:17:07:403] ifconfig eth2 up [12-18_03:17:07:452] busybox udhcpc -f -n -q -t 5 -i eth2 [12-18_03:17:07:492] udhcpc (v1.23.1) started [12-18_03:17:07:656] Sending discover... [12-18_03:17:07:706] Sending select for 10.25.154.46... [12-18_03:17:07:766] Lease of 10.25.154.46 obtained, lease time 7200 [12-18_03:17:07:888] /etc/udhcpc.d/50default: Adding DNS 211.136.17.107 [12-18_03:17:07:888] /etc/udhcpc.d/50default: Adding DNS 211.136.20.203 3. 测试连接 =====> 输入指令: 1 A3 X! G2 I- h. ?. o1 n$ R$ H
=====> 输出信息： 64 bytes from 14.215.177.38: seq=0 ttl=49 time=15.753 ms 64 bytes from 14.215.177.38: seq=1 ttl=49 time=11.835 ms 8 W( I# D9 r2 h/ U# |# |
2 packets transmitted, 2 packets received, 0% packet loss round-trip min/avg/max = 11.835/13.794/15.753 ms 测试结果# Q& W2 D U& o, `% q6 E6 U
“0% packet loss”表示WIFI连接正常。 : D/ Q7 C, E2 g8 C+ ^
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发表于 2019-8-7 11:21
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