linux 4G模块拨号脚本

小鱼儿 2021-11-14 14:54 277阅读 0赞

关于4G模块的移植，请参考上一节

[https://www.cnblogs.com/ChenChangXiong/p/10852177.html][https_www.cnblogs.com_ChenChangXiong_p_10852177.html]

ppp脚本，主要包含3个脚本文件，一个是需要pppd调用的脚本，还有一个chat是运营商的拨号脚本

**// 在文件系统的 /etc 目录下，创建 ppp 目录  在 /etc/ppp 目录下创建 peers 目录**

**gprs脚本：**

\# vim /etc/ppp/peers/gprs  
\#/etc/ppp/peers/gprs  
\# This is pppd script for China Mobile, used GPRS Module  
\# Usage: root>pppd call gprs  
/dev/ttyUSB0  
115200  
nocrtscts  
modem  
\#noauth  
debug  
\#nodetach  
\#hide-password  
usepeerdns  
noipdefault  
defaultroute  
user "cmnet"  
0.0.0.0:0.0.0.0  
ipcp-accept-local  
\#ipcp-accept-remote  
\#lcp-echo-failure 12  
\#lcp-echo-interval 3  
\#noccp  
\#novj  
\#novjccomp  
\#persist  
\#connect '/usr/sbin/chat -s -v -f /etc/ppp/gprs-connect-chat'  
connect '/usr/sbin/chat -v -s -f /etc/ppp/gprs-connect-chat'  
\#disconnect '/bin/chat -v -f /etc/ppp/gprs-disconnect-chat'

另一个脚本

\# vim etc/ppp/chap-secrets  
\# Secrets for authentication using CHAP  
\# client server secret IP addresses  
"cmnet" \* "cmnet" \*

拨号脚本：

终端输入：vim   /etc/ppp/gprs-connect-chat

**移动： **

*\#Chat script for China Mobile, used SIMCOM sim4100 TD module.  
TIMEOUT 15  
ABORT "DELAYED"  
ABORT "BUSY"  
ABORT "ERROR"  
ABORT "NO DIALTONE"  
ABORT "NO CARRIER"  
TIMEOUT 40  
'' \\rAT  
OK ATS0=0  
OK ATE0V1  
OK AT+CGDCONT=1,"IP","CMNET"  
OK AT+CGEQREQ=1,2,128,384,,,0,,,,,,  
OK ATDT\*99\*1\#  
CONNECT*

**联通：**  
TIMEOUT 5  
ABORT 'NO CARRIER'  
ABORT 'ERROR'  
ABORT 'NODIALTONE'  
ABORT 'BUSY'  
ABORT 'NO ANSWER'  
'' \\rAT  
OK \\rATZ  
OK \\rAT+CGDCONT=1,"IP","3GNET",,0,0  
OK-AT-OK ATDT\*99\#  
CONNECT \\d\\c

关于脚本的详细解释，请参考： [https://blog.csdn.net/duloveding/article/details/8287758][https_blog.csdn.net_duloveding_article_details_8287758]

[https://www.linuxidc.com/Linux/2011-03/33430p2.htm][https_www.linuxidc.com_Linux_2011-03_33430p2.htm]  （三大运营商的脚本）

脚本设置好后，重启。

首先尝试和模块通信，查看知否正常。

终端输入：

echo    “AT+CSQ”  > /dev/ttyUSB2

然后：cat    /dev/ttyUSB2

就可以查看信号强度，如果连接正常，就会收到回复，也可以试试其他的指令

如果都正常，最后启动拨号：

![1655751-20190513084421527-1290100239.png][]

ping一下谷歌：

![1655751-20190513084444582-1781091085.png][]

参考文档：

[http://www.cnblogs.com/chenfulin5/p/6951290.html?tdsourcetag=s\_pcqq\_aiomsg][http_www.cnblogs.com_chenfulin5_p_6951290.html_tdsourcetag_s_pcqq_aiomsg]

https://blog.csdn.net/duloveding/article/details/8287758

[https://www.linuxidc.com/Linux/2011-03/33430p2.htm][https_www.linuxidc.com_Linux_2011-03_33430p2.htm]

[https://blog.csdn.net/duloveding/article/details/8287758][https_blog.csdn.net_duloveding_article_details_8287758]

[https://www.linuxidc.com/Linux/2011-03/33430p2.htm][https_www.linuxidc.com_Linux_2011-03_33430p2.htm]

https://www.v2ex.com/t/328730

https://blog.csdn.net/skdkjzz/article/details/22209371

https://blog.csdn.net/qq\_41546323/article/details/78930780

[https://blog.csdn.net/szhebin/article/details/81114566][https_blog.csdn.net_szhebin_article_details_81114566] （有一个文档可以下载参考 关于i.mux6移植）

注意：天线也很重要，一开始我以为不需要天线也可以，顶多是信号差一点，但是实际上，没有天线是不行的，我试的根本无法启动拨号，所以一直的时候ifconfgi没有获取到ip   ME909s天线接在标有M的接口，有三个的天线接在标有M端口的

转载于:https://www.cnblogs.com/ChenChangXiong/p/10854793.html

[https_www.cnblogs.com_ChenChangXiong_p_10852177.html]: https://www.cnblogs.com/ChenChangXiong/p/10852177.html
[https_blog.csdn.net_duloveding_article_details_8287758]: https://blog.csdn.net/duloveding/article/details/8287758
[https_www.linuxidc.com_Linux_2011-03_33430p2.htm]: https://www.linuxidc.com/Linux/2011-03/33430p2.htm
[1655751-20190513084421527-1290100239.png]: /images/20211114/503c6a41208f42ddaf5c1d11e08d4b5f.png
[1655751-20190513084444582-1781091085.png]: /images/20211114/68ec59bd1f9140b598e6c7ab2dfddc0a.png
[http_www.cnblogs.com_chenfulin5_p_6951290.html_tdsourcetag_s_pcqq_aiomsg]: http://www.cnblogs.com/chenfulin5/p/6951290.html?tdsourcetag=s_pcqq_aiomsg
[https_blog.csdn.net_szhebin_article_details_81114566]: https://blog.csdn.net/szhebin/article/details/81114566