====== 连接4G模块 ======
连接EC20模块
===== - 主要命令 =====
lsusb
quectel-CM
mmcli -m 0
ip address
ping
===== - 基本命令例子 =====
==== - lsusb ====
root@firefly:/dev# lsusb
Bus 008 Device 005: ID 05e3:0620 Genesys Logic, Inc. USB3.0 Hub
Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 007 Device 007: ID 0fe6:9900 ICS Advent
Bus 007 Device 006: ID 2c7c:0125 Quectel Wireless Solutions Co., Ltd. EC25 LTE modem
Bus 007 Device 005: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
执行 lsusb 命令，如果出现如下内容则模块已经成功被 Linux 系统识别到。
Bus 002 Device 009: ID 2c7c:0125 Quectel Wireless Solutions Co., Ltd. EC25 LTE modem
其中，0x2C7C 和 0x0125 分别是 Quectel EC25/EC20 R2.0 的 VID 和 PID 编号。
==== - AT指令接口 ====
当连接模块并加载 USB 驱动成功后，在 /dev 目录下将会创建出几个 tty 设备节点。例如 /dev/ttyUSB2 是 AT 指令的控制端口。
root@firefly:/dev# ls -l /dev/ttyUSB*
crw-rw---- 1 root dialout 188, 0 Jun 7 16:37 /dev/ttyUSB0
crw-rw---- 1 root dialout 188, 1 Jun 28 2021 /dev/ttyUSB1
crw-rw---- 1 root dialout 188, 2 Jun 7 16:37 /dev/ttyUSB2
crw-rw---- 1 root dialout 188, 3 Jun 7 16:36 /dev/ttyUSB3
测试AT指令
root@firefly:/dev# cat /dev/ttyUSB2 & echo -e "ati\r\n" > /dev/ttyUSB2
[13] 1137
root@firefly:/dev#
Quectel
EC20F
Revision: EC20CEFILGR06A07M1G
OK
root@firefly:/dev# cat /dev/ttyUSB2 & echo -e "at\r\n" > /dev/ttyUSB2
[14] 1138
root@firefly:/dev#
root@firefly:/dev#
OK
root@firefly:~# cat /dev/ttyUSB2 & echo -e "at+qccid\r\n" > /dev/ttyUSB2
[4] 1065
root@firefly:~#
root@firefly:~#
+QCCID: 89860000191998625782
OK
==== - quectel-CM & ====
root@firefly:~# quectel-CM &
[1] 1176
root@firefly:~# [11-21_11:52:07:415] QConnectManager_Linux_V1.6.1
[11-21_11:52:07:419] Find /sys/bus/usb/devices/7-1.3 idVendor=0x2c7c idProduct=0x125, bus=0x007, dev=0x00b
[11-21_11:52:07:420] Auto find qmichannel = /dev/cdc-wdm0
[11-21_11:52:07:420] Auto find usbnet_adapter = wwan0
[11-21_11:52:07:420] netcard driver = qmi_wwan_q, driver version = 22-Aug-2005
[11-21_11:52:07:421] Modem works in QMI mode
[11-21_11:52:07:451] cdc_wdm_fd = 7
[11-21_11:52:07:539] Get clientWDS = 7
[11-21_11:52:07:571] Get clientDMS = 1
[11-21_11:52:07:603] Get clientNAS = 2
[11-21_11:52:07:635] Get clientUIM = 1
[11-21_11:52:07:668] Get clientWDA = 1
[11-21_11:52:07:700] requestBaseBandVersion EC20CEFILGR06A07M1G
[11-21_11:52:07:828] requestGetSIMStatus SIMStatus: SIM_READY
[11-21_11:52:07:859] requestGetProfile[1] cmnet///0/IPV4V6
[11-21_11:52:07:891] requestRegistrationState2 MCC: 460, MNC: 0, PS: Attached, DataCap: LTE
[11-21_11:52:07:923] requestQueryDataCall IPv4ConnectionStatus: DISCONNECTED
[11-21_11:52:07:924] ifconfig wwan0 0.0.0.0
[11-21_11:52:07:939] ifconfig wwan0 down
[11-21_11:52:08:275] requestSetupDataCall WdsConnectionIPv4Handle: 0x872bc680
[11-21_11:52:08:405] ifconfig wwan0 up
[11-21_11:52:08:420] No default.script found, it should be in '/usr/share/udhcpc/' or '/etc/udhcpc' depend on your udhcpc version!
[11-21_11:52:08:421] busybox udhcpc -f -n -q -t 5 -s /usr/share/udhcpc/default_quectel-CM.script -i wwan0
udhcpc: started, v1.30.1
udhcpc: sending discover
udhcpc: sending select for 10.22.39.214
udhcpc: lease of 10.22.39.214 obtained, lease time 7200
[11-21_11:52:08:547] ip -4 address flush dev wwan0
[11-21_11:52:08:557] ip -4 address add 10.22.39.214/30 dev wwan0
[11-21_11:52:08:569] ip -4 route add default via 10.22.39.213 dev wwan0
==== - mmcli ====
mmcli -m MODEM_INDEX
root@firefly:~# mmcli -m 0
--------------------------------
General | path: /org/freedesktop/ModemManager1/Modem/0
| device id: 317d14563a761d0bf018eaaa6173364371a4873e
--------------------------------
Hardware | manufacturer: Quectel
| model: EC20F
| firmware revision: EC20CEFILGR06A07M1G
| supported: gsm-umts, lte
| current: gsm-umts, lte
| equipment id: 863617064431395
--------------------------------
System | device: /sys/devices/platform/usbhost/fd000000.dwc3/xhci-hcd.5.auto/usb7/7-1/7-1.3
| drivers: qmi_wwan_q, option
| plugin: quectel
| primary port: ttyUSB2
| ports: ttyUSB0 (qcdm), ttyUSB1 (gps), ttyUSB2 (at), ttyUSB3 (at),
| wwan0 (net)
--------------------------------
Status | unlock retries: sim-pin (3), sim-puk (10), sim-pin2 (3), sim-puk2 (10)
| state: registered
| power state: on
| access tech: lte
| signal quality: 40% (recent)
--------------------------------
Modes | supported: allowed: 2g, 3g, 4g; preferred: none
| current: allowed: 2g, 3g, 4g; preferred: none
--------------------------------
IP | supported: ipv4, ipv6, ipv4v6
--------------------------------
3GPP | imei: 863617064431395
| operator id: 46000
| operator name: CHINA MOBILE
| registration: home
--------------------------------
3GPP EPS | ue mode of operation: csps-2
--------------------------------
SIM | primary sim path: /org/freedesktop/ModemManager1/SIM/0
==== - ip address ====
root@firefly:~# ip address
1: lo: 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
valid_lft forever preferred_lft forever
2: can0: mtu 16 qdisc noop state DOWN group default qlen 10
link/can
3: can1: mtu 16 qdisc noop state DOWN group default qlen 10
link/can
4: eth0: mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether 4e:1b:4f:0f:6d:2f brd ff:ff:ff:ff:ff:ff
5: eth1: mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether 4a:1b:4f:0f:6d:2f brd ff:ff:ff:ff:ff:ff
6: wwan0: mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 1000
link/ether 8a:b1:46:2f:ee:d6 brd ff:ff:ff:ff:ff:ff
inet 10.22.91.212/29 scope global wwan0
valid_lft forever preferred_lft forever
inet6 fe80::88b1:46ff:fe2f:eed6/64 scope link
valid_lft forever preferred_lft forever
7: enx00e0996fdf14: mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
link/ether 00:e0:99:6f:df:14 brd ff:ff:ff:ff:ff:ff
==== - 双卡控制 ====
信号名： CARD_SEL \\
核心模块引脚： 276 \\
GPIO：GPIO3_C5 \\
PIN No: 117 = 32 * 3 + 8 * 2 + 5 \\
功能： 0 ： eSim； 1：卡座 \\
默认输出： 1
rk3568-firefly-core.dtsi 删除 GPIO3_C5的驱动。