EDA365欢迎您登录！
您需要 登录 才可以下载或查看，没有帐号？注册
x
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。; V/ g+ P) C( k* s
【接口标识】：WIFI、WIFI_ANT8 }* m, @/ H+ ~" f' d
【系统设备】：wlan0# w) I- q( g/ v( v0 o" u
测试操作
, o# K q+ E0 W! f1. 确定“WIFI”标识处有贴上WIFI模块，否则无需进行测试。4 o Y& d+ A) P" n
2. 把WIFI天线连接到“WIFI_ANT”标识的接口上。$ x7 X1 y; k" W# f; i
3. 生成 SSID 的 WPA PSK 文件/ \! B, T7 R$ n a6 e$ T
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 4 R" @/ l# z7 p7 P
=====> 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
4 }2 B$ X* z$ N2 r! ?0 j=====> 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
% f8 _9 C7 \. i8 n) W=====> 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
' G: L1 w* {4 n: T0 f--- 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! H8 e: M, \' X# H& i" I
“0% packet loss”表示WIFI连接正常。 : n1 _4 [8 T+ P3 r' n; l% L; ]) X* g+ L
; ]1 m6 R/ h8 O4 p
, q: u/ V. d& i; [7 j
4.2 RTL8188 模块功能演示（WIFI AP mode）% ?0 [+ M, N2 H2 e: F
【测试说明】：使用RTL8188作为WIFI AP，并把手机连接到此AP。
: Y+ Y! e0 @; U6 L( C) q/ X【接口标识】：WIFI、WIFI_ANT% @! `- j$ a/ Y; F7 X8 t
【系统设备】：wlan0
6 d8 @! B5 y5 A3 \/ p# x+ [测试操作3 w) J& X9 N- T: \
1. 确定“WIFI”标识处有贴上WIFI模块，否则无需进行测试。
% r6 J8 V7 A g# A2. 把WIFI天线连接到“WIFI_ANT”标识的接口上。
2 \8 x" u* d" j) ~+ e* S8 v3. 为 wlan0 配置 IP： =====> 输入指令: ifconfig wlan0 192.168.99.1
( [5 L" {( l8 I* V! b" 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 &
" ~" K' [# q3 ?& v& I$ R u=====> 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 9 I) i( R/ I: J. B; p! O: R) d# `
=====> 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
# i0 {# q% p8 c& c6 N" D% p) B8 w) u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" V* {6 R3 x测试结果
- R; U+ |9 ]% f. d2 h; S1. 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 ( v, w- ` J) d
) {# m* M1 M* t9 g
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。. Z* {" J" B& s) t( M
【接口标识】：MINI_PCIE0 y/ R2 l* A2 L$ G: ^1 L
【系统设备】：eth2
F0 I q) P3 Y& s测试操作1 j- J& z8 u% m# ]. i* ?, d
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。
% J7 @" n: d0 |2 k. B4 m7 T2. 使用指令进行网络连接： =====> 输入指令: /my-demo/gcc-linaro-5.3-ARM/quectel-CM & , o d6 h/ O6 n& W3 j" o
=====> 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: ) B1 ?5 v/ m- s( t
=====> 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 E' q% i' k8 i3 i/ ^4 e2 packets transmitted, 2 packets received, 0% packet loss round-trip min/avg/max = 11.835/13.794/15.753 ms 测试结果- W( D/ z3 u& c q5 y, W
“0% packet loss”表示WIFI连接正常。 5 Q5 O& F, A2 S
: ?- e+ m* O8 n" `4 e* C$ ?2 c$ _/ @0 f' R3 D0 e1 c
| 
/1 
发表于 2019-8-7 11:21
收藏
淘帖
支持！
反对！