抹去的是公网ip，简单说就是在公网上装一个centos，再开启ftp， 即可 对 自己的 终端设备进行 Fota 升级 

宝塔是提供 面板 的 很简单上手的 工具 ，结合自由 app 后台管理系统 ，很方便实现 

在单位，没有路由搭建SCP 传送怎么办？

试试网络桥接 ，把无线 和有 线桥接起来 ，开发板网线插到 电脑 网口 ，这样 {PC  和  开发板 可以 同时 上网 ，传送 文件 

root@myir:~# ifconfig   //是使用 此命令  查询 网络 配置  和  iPC 一样
eth0      Link encap:Ethernet  HWaddr FC:69:47:33:A5:65
          inet6 addr: fe80::fe69:47ff:fe33:a565/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:154 errors:0 dropped:0 overruns:0 frame:0
          TX packets:48 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:16208 (15.8 KiB)  TX bytes:8597 (8.3 KiB)
          Interrupt:62 Base address:0x8000

目前是 没有 获取 到 地址的 状态 ，

root@myir:~# ifconfig
eth0      Link encap:Ethernet  HWaddr FC:69:47:33:A5:65
          inet addr:192.168.2.20  Bcast:192.168.2.255  Mask:255.255.255.0
          inet6 addr: fe80::fe69:47ff:fe33:a565/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2977 errors:0 dropped:282 overruns:0 frame:0
          TX packets:500 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:242942 (237.2 KiB)  TX bytes:64873 (63.3 KiB)
          Interrupt:62 Base address:0x8000

获取到 IP  192.168.2.20

ub@ubuntu:~/Downloads/SHT30$ make ARCH=arm
ub@ubuntu:~/Downloads/SHT30$ make ARCH=arm
arm-linux-gnueabihf-gcc -c  -Iincludes  -I. sources/main.c -o build_arm/main.o 
arm-linux-gnueabihf-gcc build_arm/main.o -o build_arm/SHT30_demo 
ub@ubuntu:~/Downloads/SHT30$ scp ^C
ub@ubuntu:~/Downloads/SHT30$ scp ./build_arm/SHT30_demo root@192.168.2.58:/home/root/
SHT30_demo                                                                          100% 8636   177.9KB/s   00:00    
ub@ubuntu:~/Downloads/SHT30$ 

Xshell 过期 ，就 继续 使用 X term

root@myir:~# ls
SHT30_demo  analogclock
root@myir:~# ./SHT30_demo         成功 获取温度  ，  湿度  ，
open /dev/i2c-0 success !      
set slave address to 0x44 success!
SHT30---->: 0x6c 0xf8 0x5b 0x95 0xf9 0xb1
temperature:29.491493   humidity:58.583961
SHT30---->: 0x6d 0x2 0xf6 0x95 0xe4 0xbe
temperature:29.518196   humidity:58.551918
SHT30---->: 0x6c 0xfd 0xae 0x95 0xdb 0x55
temperature:29.504845   humidity:58.538185
SHT30---->: 0x6c 0xf8 0x5b 0x95 0xe9 0xf2
temperature:29.491493   humidity:58.559547
SHT30---->: 0x6d 0x2 0xf6 0x95 0xec 0x7
temperature:29.518196   humidity:58.564125
SHT30---->: 0x6c 0xfd 0xae 0x95 0xbc 0x79
temperature:29.504845   humidity:58.490883
SHT30---->: 0x6d 0x8 0x2d 0x95 0x9f 0xac
temperature:29.534218   humidity:58.446632
SHT30---->: 0x6c 0xf8 0x5b 0x95 0xa2 0x25
temperature:29.491493   humidity:58.451210
SHT30---->: 0x6d 0xd 0xd8 0x95 0xb9 0x8c
temperature:29.547569   humidity:58.486305

此处的 sh文件 未找到 ，自己的编写的 报错 

root@myir:~# ./ L610_usbdriver_pppd.sh
-sh: ./: Permission denied
root@myir:~# ./L610_usbdriver_pppd.sh
-sh: ./L610_usbdriver_pppd.sh: Permission denied

添加 下面 文件 权限 即可 解决 ，

root@myir:~# chmod +x L610_usbdriver_pppd.sh
root@myir:~# ./L610_usbdriver_pppd.sh
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 1782:4d10 Spreadtrum Communications Inc.
Bus 001 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
:1.0: GSM modem (1-port) converter detected
[ 1543.169755] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB0
[ 1543.178105] option 1-1.1:1.1: GSM modem (1-port) converter detected
[ 1543.191207] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB1
[ 1543.215508] option 1-1.1:1.2: GSM modem (1-port) converter detected
[ 1543.230934] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB2
[ 1543.247295] option 1-1.1:1.3: GSM modem (1-port) converter detected
[ 1543.255879] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB3
[ 1543.279268] option 1-1.1:1.4: GSM modem (1-port) converter detected
[ 1543.300508] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB4
[ 1543.323867] option 1-1.1:1.5: GSM modem (1-port) converter detected
[ 1543.353590] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB5
[ 1543.366302] option 1-1.1:1.6: GSM modem (1-port) converter detected
[ 1543.379277] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB6
/dev/ttyUSB0  /dev/ttyUSB2  /dev/ttyUSB4  /dev/ttyUSB6
/dev/ttyUSB1  /dev/ttyUSB3  /dev/ttyUSB5
root@myir:~#

[11:20:50.154]发→◇AT+CGMR?
□
[11:20:50.158]收←◆AT+CGMR?
+CGMR: "16000.1000.00.05.01.12"

OK

[11:20:54.194]发→◇AT+CFUN=1
□
[11:20:54.198]收←◆AT+CFUN=1
OK

[11:20:57.427]发→◇AT+CGSN?
□
[11:20:57.432]收←◆AT+CGSN?
+CGSN: "861037050017664"

OK

[11:21:01.082]发→◇AT+CFSN?
□
[11:21:01.086]收←◆AT+CFSN?
+CFSN: "L619LU0AB7"

OK

[11:21:13.417]发→◇AT+CPIN?
□
[11:21:13.424]收←◆AT+CPIN?
+CPIN: READY

OK

[11:21:23.961]发→◇AT+CGDCONT=1,"IP","cmnet"
□
[11:21:23.969]收←◆AT+CGDCONT=1,"IP","cmnet"
OK

[11:21:35.194]发→◇AT+CSQ?
□
[11:21:35.197]收←◆AT+CSQ?
+CSQ: 28,99

OK

[11:21:50.154]发→◇AT+CEREG?
□
[11:21:50.158]收←◆AT+CEREG?
+CEREG: 0,1

OK

[11:22:00.577]发→◇AT+COPS?
□
[11:22:00.582]收←◆AT+COPS?
+COPS: 0,0,"CHINA MOBILE",7

OK

[11:22:50.922]发→◇AT+MIPCALL?
□
[11:22:50.927]收←◆AT+MIPCALL?
+MIPCALL: 0

OK

拨号脚本 有需要可以 联系 我