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Merge pull request #45 from CodeChenL/qmi
fix: use the nm host lte module
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| # 移远 LTE EC25 | ||
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| 以下以 ROCK 4B+ 为例，介绍移远 LTE EC25-AU 模块的配置方法。 | ||
| 以下以 ROCK 5B 为例，介绍移远 LTE EC25-AU 模块的配置方法。 | ||
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| ## 安装相关软件 | ||
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| 请在终端中执行以下命令以安装拨号上网相关软件： | ||
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| ```bash | ||
| sudo apt update | ||
| sudo apt install ppp picocom | ||
| sudo apt install libqmi-utils modemmanager | ||
| ``` | ||
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| ## 连结外设 | ||
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| 首先，请通过 USB 连结 ROCK 4B+ 以及移远 LTE EC25-AU。 | ||
| 首先，请通过 USB 连接 ROCK 4B+ 以及移远 LTE EC25-AU。 | ||
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| 你可以通过以下命令检查设备是否已连接： | ||
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| ```bash | ||
| rock@rock-pi-4b-plus:~$ lsusb | grep -i Quectel | ||
| rock@rock-5b:~$ lsusb | grep -i Quectel | ||
| Bus 002 Device 002: ID 2c7c:0125 Quectel Wireless Solutions Co., Ltd. EC25 LTE modem | ||
| ``` | ||
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| 调制解调器通常是通过串口和宿主机进行通信。请检查系统是否正确枚举出对应的串口设备： | ||
| 请检查系统是否正确枚举出对应的 cdc-wdm 设备： | ||
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| ```bash | ||
| rock@rock-pi-4b-plus:~$ ls /dev/ttyUSB* | ||
| /dev/ttyUSB0 /dev/ttyUSB1 /dev/ttyUSB2 /dev/ttyUSB3 | ||
| rock@rock-5b:~$ ls /dev/cdc-wdm* | ||
| /dev/cdc-wdm0 | ||
| ``` | ||
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| ## 使用 `at` 指令测试调制解调器 | ||
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| 首先，使用 `picocom` 打开串口： | ||
| 检查数据格式与网络接口： | ||
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| ```bash | ||
| sudo picocom -b 115200 /dev/ttyUSB3 | ||
| rock@rock-5b:~$ sudo qmicli -d /dev/cdc-wdm0 -e | ||
| raw-ip | ||
| rock@rock-5b:~$ sudo qmicli -d /dev/cdc-wdm0 -w | ||
| wwan0 | ||
| rock@rock-5b:~$ | ||
| ``` | ||
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| 程序启动后，可输入以下 `at` 指令检查调制解调器状态： | ||
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| ```bash | ||
| at+cpin? | ||
| +CPIN: READY | ||
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| OK #查看 SIM 卡是否就位 | ||
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| at+csq | ||
| +CSQ: 14,99 | ||
| :::info | ||
| 如果数据格式非 `raw-ip`,可使用 `sudo qmicli -d /dev/cdc-wdm0 -E raw-ip` 命令设置，并重启板子。 | ||
| ::: | ||
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| OK #检测信号，99 代表无信号。 | ||
| ## 创建网络接口配置接口 | ||
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| at+cops? | ||
| +COPS: 1,0,"CHN-UNICOM",7 | ||
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| OK #查看运营商 | ||
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| at+creg? | ||
| +CREG: 0,1 | ||
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| OK #获得手机的注册状态(0,1:表示注册正常) | ||
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| at+qeng="servingcell" | ||
| +QENG: "servingcell","NOCONN","LTE","FDD",460,01,19A358C,366,100,1,5,5,774E,-108,-5,-83,9,13 | ||
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| OK #显示当前连接服务小区的信号强度和质量 | ||
| ``` | ||
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| 如果调制解调器均返回正常状态，可使用 `Ctrl+A Ctrl+X` 组合键退出 `picocom`。 | ||
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| ## 通过 `ppp` 进行拨号上网 | ||
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| 在终端中，执行以下命令来添加 `ppp` 拨号配置脚本。 | ||
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| 你将鼠标移动到代码框右上角，使用复制按钮来复制全文，然后将命令粘贴到终端中。 | ||
| 首先，使用 `nmcli` 创建接口配置： | ||
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| ```bash | ||
| cat << EOF | ||
| # 连接调试时隐藏密码 | ||
| hide-password | ||
| # 该手机不需要身份验证 | ||
| noauth | ||
| # 用于呼叫控制脚本 | ||
| connect '/usr/sbin/chat -s -v -f /etc/ppp/peers/rasppp-chat-connect' | ||
| # 断开连接脚本 | ||
| disconnect '/usr/sbin/chat -s -v -f /etc/ppp/peers/rasppp-chat-disconnect' | ||
| # 调试信息 | ||
| debug | ||
| # 4G模块 | ||
| /dev/ttyUSB3 | ||
| # 串口波特率 | ||
| 115200 | ||
| # 使用默认路由 | ||
| defaultroute | ||
| # 不使用默认IP | ||
| noipdefault | ||
| # 不使用PPP压缩 | ||
| novj | ||
| novjccomp | ||
| noccp | ||
| ipcp-accept-local | ||
| ipcp-accept-remote | ||
| local | ||
| # 最好锁定串行总线，创建一个锁定文件，其他程序在发现存在这个文件后，就能得知相应的串口已经被使用。 | ||
| lock | ||
| dump | ||
| nodetach | ||
| # 用户名 密码 （配置因运营商不同而不同） | ||
| user [email protected] | ||
| password vnet.mobi | ||
| # 硬件控制流 | ||
| crtscts | ||
| remotename 3gppp | ||
| ipparam 3gppp | ||
| # 使用服务器端协商的DNS就可以设置参数usepeerdns | ||
| usepeerdns | ||
| EOF | sudo tee /etc/ppp/peers/rasppp | ||
| rock@rock-5b:~$ sudo nmcli connection add type gsm ifname cdc-wdm0 | ||
| Connection 'gsm-cdc-wdm0' (e26d1d79-ba6b-44f3-9135-1ef7a80d982a) successfully added. | ||
| ``` | ||
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| cat << EOF | ||
| TIMEOUT 15 | ||
| ABORT "BUSY" | ||
| ABORT "ERROR" | ||
| ABORT "NO ANSWER" | ||
| ABORT "NO CARRTER" | ||
| ABORT "NO DIALTONE" | ||
| 然后根据运营商要求编辑接口配置（可选）： | ||
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| ""AT | ||
| OK \rATZ | ||
| :::info | ||
| 此操作为可选项，如果连接不正常，可仿照以下操作编辑 apn、username、password 等运营商相关配置。 | ||
| 输入 `print` 可输出所有配置信息。 | ||
| ::: | ||
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| OK \rAT+CGDCONT=1,"IP","" | ||
| ``` | ||
| rock@rock-5b:~$ sudo nmcli connection edit gsm-cdc-wdm0 | ||
| OK-AT-OK ATDT#777 | ||
| CONNECT \d\c | ||
| EOF | sudo tee /etc/ppp/peers/rasppp-chat-connect | ||
| ===| nmcli interactive connection editor |=== | ||
| cat << EOF | ||
| ABORT "ERROR" | ||
| ABORT "NO DIALTONE" | ||
| SAY "\NSending break to the modem\n" | ||
| Editing existing 'gsm' connection: 'gsm-cdc-wdm0' | ||
| ""\k" | ||
| Type 'help' or '?' for available commands. | ||
| Type 'print' to show all the connection properties. | ||
| Type 'describe [<setting>.<prop>]' for detailed property description. | ||
| ""+++ATH" | ||
| SAY "\nGood bye !\n" | ||
| EOF | sudo tee /etc/ppp/peers/rasppp-chat-disconnect | ||
| You may edit the following settings: connection, gsm, serial, ppp, match, ipv4, ipv6, hostname, tc, proxy | ||
| nmcli> set gsm.apn ctlte | ||
| nmcli> save | ||
| Connection 'gsm-cdc-wdm0' (e26d1d79-ba6b-44f3-9135-1ef7a80d982a) successfully updated. | ||
| nmcli> quit | ||
| ``` | ||
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| 你现在可以使用 `ppp` 尝试拨号： | ||
| ## 检查网络 | ||
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| 检查 wwan 接口是否已配置 IP，如果此接口无 IP，可使用 `sudo nmcli connection up gsm-cdc-wdm0` 命令重新连接： | ||
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| ```bash | ||
| sudo pppd call rasppp & #后台进行拨号 | ||
| rock@rock-5b:~$ ip a | ||
| 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 | ||
| link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 | ||
| inet 127.0.0.1/8 scope host lo | ||
| valid_lft forever preferred_lft forever | ||
| inet6 ::1/128 scope host noprefixroute | ||
| valid_lft forever preferred_lft forever | ||
| 2: enP4p65s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000 | ||
| link/ether 92:f3:c7:c0:ad:c9 brd ff:ff:ff:ff:ff:ff permaddr 02:2b:ab:02:ab:a8 | ||
| 3: wlP2p33s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 | ||
| link/ether 20:0b:74:70:fc:62 brd ff:ff:ff:ff:ff:ff | ||
| inet 192.168.31.215/24 brd 192.168.31.255 scope global dynamic noprefixroute wlP2p33s0 | ||
| valid_lft 3529sec preferred_lft 3529sec | ||
| inet6 fe80::2d68:bb6a:934b:a41b/64 scope link noprefixroute | ||
| valid_lft forever preferred_lft forever | ||
| 7: wwan0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 1000 | ||
| link/none | ||
| inet 10.10.239.91/29 brd 10.10.239.95 scope global noprefixroute wwan0 | ||
| valid_lft forever preferred_lft forever | ||
| rock@rock-5b:~$ | ||
| ``` | ||
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| 完整拨号过程如图所示。 | ||
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|  | ||
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| 从程序的输出中我们可以获得以下信息： | ||
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| 1. 本机 IP 地址： `10.224.236.90` | ||
| 2. 主要 DNS 服务器： `120.80.80.80` | ||
| 3. 次要 DNS 服务器： `221.5.88.88` | ||
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| 我们现在可以根据以上信息来配置网络： | ||
| 使用 `ping` 命令指定 `wwan` 接口检查网络是否正常： | ||
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| ```bash | ||
| sudo ip route add default via 10.224.236.90 # 配置网关 | ||
| echo "nameserver 120.80.80.80" | sudo tee -a /etc/resolv.conf # 配置主要 DNS | ||
| echo "nameserver 221.5.88.88" | sudo tee -a /etc/resolv.conf # 配置次要 DNS | ||
| rock@rock-5b:~$ sudo ping baidu.com -I wwan0 -c 5 | ||
| PING baidu.com (39.156.66.10) from 10.10.239.91 wwan0: 56(84) bytes of data. | ||
| 64 bytes from 39.156.66.10 (39.156.66.10): icmp_seq=1 ttl=48 time=172 ms | ||
| 64 bytes from 39.156.66.10 (39.156.66.10): icmp_seq=2 ttl=48 time=63.7 ms | ||
| 64 bytes from 39.156.66.10 (39.156.66.10): icmp_seq=3 ttl=48 time=61.2 ms | ||
| 64 bytes from 39.156.66.10 (39.156.66.10): icmp_seq=4 ttl=48 time=88.9 ms | ||
| 64 bytes from 39.156.66.10 (39.156.66.10): icmp_seq=5 ttl=48 time=80.5 ms | ||
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| --- baidu.com ping statistics --- | ||
| 5 packets transmitted, 5 received, 0% packet loss, time 4004ms | ||
| rtt min/avg/max/mdev = 61.224/93.320/172.271/40.800 ms | ||
| ``` | ||
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| 你现在可以使用 `ping` 命令检查是否连接到互联网： | ||
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|  | ||
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| ## 疑难解答 | ||
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| 1. 我的系统没有列出 USB 串口设备。 | ||
| 1. 我的系统没有列出 cdc-wdm 串口设备。 | ||
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| 请检查对应的驱动是否包含在你当前运行的系统中。你可以执行以下命令检查： | ||
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| ```bash | ||
| rock@rock-pi-4b-plus:~$ lsmod | grep usb | ||
| usb_wwan 20480 1 option | ||
| usbserial 36864 2 usb_wwan,option | ||
| rock@rock-5b:~$ sudo lsmod | grep qmi_wwan | ||
| qmi_wwan 36864 0 | ||
| cdc_wdm 28672 2 qmi_wwan | ||
| usbnet 36864 1 qmi_wwan | ||
| ``` | ||