1# 开发板Wi-Fi功能使用指导 2 3## 一、准备工作 4 5- [编译烧录](BearPi-HM_Micro开发板编译调试.md)最新代码 6- 准备一个 2.4G 的 Wi-Fi 热点（支持手机热点，如果AP配置的2.4G热点无法关联需要考虑兼容性问题，尝试更换别的品牌AP再做验证） 7 8## 二、连接Wi-Fi 9 10### 方法一：使用桌面setting应用连接Wi-Fi 11 12**注: 官方给的setting应用联网后退出wifi会断开，而且有概率会导致系统跑崩。** 13 141. 当前桌面setting应用连接WiFi SSID的键盘仅支持数字键盘，需要配置2.4G Wi-Fi 的密码为纯数字 15 162. 系统启动后会需要等一段时间才会加载wifi，若看到以下片段日志，说明wifi已经加载好后，然后再用setting应用去联网 17 18 19 20### 方法二：使用CLI命令连接Wi-Fi 21 22 231. 修改`device/board/bearpi/bearpi_hm_micro/app/communication/wpa_supplicant/config/w 24pa_supplicant.conf` 中的ssid和psk为创建的2.4G WiFi 热点名称及密码（非纯数字的密码也可以） 25 26 ``` 27 country=GB 28 ctrl_interface=udp 29 network={ 30 ssid="bearpi" 31 psk="0987654321" 32 } 33 ``` 34 352. 如果步骤1中对 `wpa_supplicant.conf` 做了修改，需要重新编译生成固件 363. 烧写固件到micro开发板 372. 在micro开发板CLI下执行以下命令连接Wi-Fi 38 ``` 39 ./bin/wpa_supplicant -i wlan0 -d -c /etc/wpa_supplicant.conf & 40 ``` 41 42 串口有如下提示信息时表示关联成功 43 ```sh 44 WifiWpaEventScanDoneProcess done 45 wlan0: Trying to associate with ec:f8:eb:e9:c3:a5 (SSID='bearpi' freq=2447 MHz) 46 ifiDriverEventProcess event=5 47 wlan0: State: SCANNING -> ASSOCIATING 48 49 hilog ringbuffer full, drop 2 line(s) log 50 [2791046][W:3153]{wal_cfg80211_connect::start new conn,ssid_len=16,auth_type=0,privacy=1,mfp=0} 51 [2791137][W:692]{hmac_user_add::user[2] mac:XX:XX:XX:E9:C3:A5} 52 WifiWpaAssociate done ret=0 53 54 01-01 00:46:30.838 15 75 I 02500/HDF_WIFI_CORE: WifiEventReport: WifiEventReport send event = 5, ifName = wlan0 55 01-01 00:46:30.838 15 75 I 02500/HDF_WIFI_CORE: OnWiFiEvents: WifiDriverEventProcess event=5 56 ... 57 58 wlan0: State: ASSOCIATING -> ASSOCIATED 59 wlan0: Associated with ec:f8:eb:e9:c3:a6 60 wlan0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0 61 WifiWpaEventConnectResultProcess done 62 WifiWpaDriverEventEapolRecvProcess call 63 64 ... 65 66 rx_callback 67 wlan0: Event EAPOL_RX (23) received 68 wlan0: State: COMPLETED -> 4WAY_HANDSHAKE 69 [2794831][W:1580]{hmac_tx_lan_to_wlan:type:6,len:113}[0~3:dhcp 4:arp_req 5:arp_rsp 6:eapol] 70 WifiWpaWpaSendEapol done ret=0 71 wlan0: State: 4WAY_HANDSHAKE -> GROUP_HANDSHAKE 72 wlan0: WPA: Key negotiation completed with ec:f8:eb:e9:c3:a5 [PTK=CCMP GTK=TKIP] 73 wlan0: State: GROUP_HANDSHAKE -> COMPLETED 74 WifiWpaReceiveEapol done 75 76 ``` 77 78 联网验证 79 ```sh 80 OHOS # ping www.baidu.com 81 [2871646][W:1580]{hmac_tx_lan_to_wlan:type:4,len:42}[0~3:dhcp 4:arp_req 5:arp_rsp 6:eapol] 82 [2871765][W:1580]{hmac_tx_lan_to_wlan:type:4,len:42}[0~3:dhcp 4:arp_req 5:arp_rsp 6:eapol] 83 [2871772][W:635]{hmac_rx_lan_frame_classify:user=2,type=5,len=62}[0~3dhcp 4arp_req 5arp_rsp 6eapol] 84 [2871781][W:635]{hmac_rx_lan_frame_classify:user=2,type=5,len=62}[0~3dhcp 4arp_req 5arp_rsp 6eapol] 85 86 Ping: destination unreachable ...[2874767][W:556]hisi_customize_wifi::[ba buffer size:64] 87 88 [1]Reply from 220.181.38.149: time=7ms TTL=55[2875274][W:861]{hmac_mgmt_tx_delba:tid=0 ba_tx_info null} 89 [2875278][W:850]{hmac_ba_reset_tx_handle::tx ba not set yet.} 90 [2875283][W:1182]{hmac_mgmt_rx_addba_rsp::tx ba info null.tid[0]} 91 [2875774][W:556]hisi_customize_wifi::[ba buffer size:64] 92 93 [2]Reply from 220.181.38.149: time<1ms TTL=55[2876275][W:861]{hmac_mgmt_tx_delba:tid=0 ba_tx_info null} 94 [2876279][W:850]{hmac_ba_reset_tx_handle::tx ba not set yet.} 95 [2876284][W:1182]{hmac_mgmt_rx_addba_rsp::tx ba info null.tid[0]} 96 [2876775][W:556]hisi_customize_wifi::[ba buffer size:64] 97 [2876775][W:635]{hmac_rx_lan_frame_classify:user=2,type=4,len=60}[0~3dhcp 4arp_req 5arp_rsp 6eapol] 98 99 [3]Reply from 220.181.38.149: time<1ms TTL=55 100 --- 220.181.38.149 ping statistics --- 101 4 packets transmitted, 3 received, 1 loss 102 103 ```