4G&5G 配置¶
板卡支持 USB 接口连接以及板载 MiniPCIe 接口连接 4G或5G模块，支持板载 MiniPCIe 接口以及适配模块见表格：
| 主板 | 主控 | 平台 | 板载 MiniPCIe 接口 |
|---|---|---|---|
| K1 | RK3568 | Rockchip | EC20、EC200M |
| K1B | RK3568 | Rockchip | / |
| K1MINI | RK3568 | Rockchip | / |
| K2B | H618 | Allwinner | / |
| K2C | H618 | Allwinner | EC20、EC200M |
| K3 | RK3562 | Rockchip | EC20、EC200M |
| K3B | RK3562 | Rockchip | / |
| K4B | T113 | Allwinner | EC20、EC200M |
| K5C | A133 | Allwinner | EC20、EC200M |
| K7 | RK3576 | Rockchip | EC20、EC200M、RG200U |
| K7C | RK3576 | Rockchip | EC20、EC200M |
| K7S | RK3576 | Rockchip | EC20、EC200M |
| K8 | RK3588 | Rockchip | EC20、EC200M、RG200U |
| K8D | RK3588S2 | Rockchip | / |
| K9 | T527 | Allwinner | EC20 |
| K10B | A733 | Allwinner | / |
| K11C | RK3566 | Rockchip | / |
MiniPCIe接口¶
- K7 MiniPCIe 口硬件安装示例
Warning
请在断电状态下安装/拆卸网络模块，SIM卡支持热拔插。
脚本配置¶
4G/5G 移动模块开机自动配置，检测模块是否存在，进行配置拨号
Tip
开机默认仅会拨号一次，在信号不好或通讯异常情况，可能会存在拨号失败的情况，若无网络，可运行拨号脚本进行重试。
$ cat /usr/bin/hardware-optimization
4g_config() {
wait_time=30
for((i=1;i<=$wait_time;i++));
do
if [ -c /dev/ttyUSB2 ]; then
echo "$i: 4g /dev/ttyUSB2 exists and is a character device." >> $LOG_FILE
/usr/bin/4G_dialing.sh
break;
else
echo "$i: 4g /dev/ttyUSB2 does not exist or is not a character device." >> $LOG_FILE
sleep 1
fi
done
}
拨号脚本，已适配 RG200U / EC200 / EC20：
$ cat /usr/bin/4G_dialing.sh
#!/bin/bash
DIRECTORY="/dev/serial/by-id"
Serial_port=""
counter=0
FORCE_CONFIG=0
Switching_mode() {
PRODUCT_NAME=$(cat "$device_dir/product")
MANUFACTURER=$(cat "$device_dir/manufacturer")
SERIAL_NUMBER=$(cat "$device_dir/serial")
if [ "$SERIAL_NUMBER" == "" ]; then
Serial="usb-${MANUFACTURER}_${PRODUCT_NAME}"
else
Serial="usb-${MANUFACTURER}_${PRODUCT_NAME}_$SERIAL_NUMBER"
fi
for file in $(ls "$DIRECTORY" | grep "$Serial" | sort); do
if [ "$counter" -eq 2 ]; then
Serial_port=$file
break
fi
counter=$((counter + 1))
done
}
for device_dir in /sys/bus/usb/devices/*; do
if [ -e "$device_dir/idProduct" ]; then
product_id=$(cat "$device_dir/idProduct")
# EC200: 6002 / 6001 / 6005
if [ "$product_id" = "6002" ] || [ "$product_id" = "6001" ] || [ "$product_id" = "6005" ]; then
for interface in ${device_dir}/*/net/*; do
name=$(basename $interface)
done
if [ ! -e "/sys/class/net/$name" ]; then
Switching_mode "$device_dir"
if [ -e $DIRECTORY/$Serial_port ]; then
echo -e "AT+QCFG=\"usbnet\",1" >$DIRECTORY/$Serial_port
sleep 1
/usr/bin/quectel-CM >>/tmp/4G.log 2>&1 &
fi
fi
fi
# EC20: 0125
if [ "$product_id" = "0125" ]; then
for interface in ${device_dir}/*/net/*; do
name=$(basename $interface)
done
if [ ! -e "/sys/class/net/$name" ]; then
Switching_mode "$device_dir"
if [ -e $DIRECTORY/$Serial_port ]; then
echo -e "AT+QCFG=\"usbnet\",0" >$DIRECTORY/$Serial_port
sleep 1
/usr/bin/quectel-CM >>/tmp/4G.log 2>&1 &
fi
fi
fi
# RG200U: 0900
if [ "$product_id" = "0900" ]; then
RG200U_config "$device_dir"
fi
fi
done
网络测试¶
1. 判断是否接入模块，查看日志进行判断。
Tip
/dev/ttyUSB2 exists and is a character device. 代表设备识别成功
$ cat /tmp/kickpi-hardware.log
1: 4g /dev/ttyUSB2 does not exist or is not a character device.
2: 4g /dev/ttyUSB2 does not exist or is not a character device.
...
24: 4g /dev/ttyUSB2 does not exist or is not a character device.
25: 4g /dev/ttyUSB2 exists and is a character device.
或查看 /dev/ttyUSB2 是否存在
2. 判断是否拨号成功
Tip
设备名称格式为 enx*（* 为可变后缀），具体名称请参照实际环境。
$ ifconfig
enxca7f24fb0e94: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.138.192.102 netmask 255.255.255.0 broadcast 10.138.192.255
inet6 fe80::583f:ed51:782d:318d prefixlen 64 scopeid 0x20<link>
ether ca:7f:24:fb:0e:94 txqueuelen 1000 (Ethernet)
RX packets 181 bytes 15185 (14.8 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 194 bytes 17394 (16.9 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
3. Ping 网络测试
Tip
指定设备 enx* 进行 ping 网络测试。
$ ping www.baidu.com -I enxca7f24fb0e94
PING www.wshifen.com (103.235.46.115) from 10.138.192.102 enxca7f24fb0e94: 56(84) bytes of data.
64 bytes from 103.235.46.115 (103.235.46.115): icmp_seq=1 ttl=45 time=1094 ms
64 bytes from 103.235.46.115 (103.235.46.115): icmp_seq=2 ttl=45 time=3924 ms
64 bytes from 103.235.46.115 (103.235.46.115): icmp_seq=3 ttl=45 time=1870 ms
定制拨号功能¶
主板默认使用官方 quectel-CM 工具进行拨号，如需修改定制拨号功能，下载 移远官方 Linux 软件 进行定制。