sim900芯片—GPRS模块ppp拨号上网
2017-01-18 15:44
1041 查看
-----------------------------------------------------------------------
Cross compiler：arm-linux-gcc-4.5.4
Linux kernel version：linux-3.0
Development board：fl2440
Author: Yuzhonghan <754270866@qq.com>
-----------------------------------------------------------------------
博文提醒：在开发GPRS模块时所准备的开通GPRS流量的sim卡需要能正常使用！！！
一.GPRS概述：
GSM模块，是将GSM射频芯片、基带处理芯片、存储器、功放器件等集成在一块线路板上，具有独立的操作系统、GSM射频处理、基带处理并提供标准接口的功能模块。GSM模块根据其提供的数据传输速率又可以分为GPRS模块、EDGE模块和纯短信模块。短信模块只支持语音和短信服务。GPRS，可说是GSM的延续。它经常被描述成“2.5G”，也就是说这项技术位于第二代（2G）和第三代（3G）移动通讯技术之间。GPRS的传输速率从56K到114Kbps不等，理论速度最高达171k。相对于GSM的9.6kbps的访问速度而言，GPRS拥有更快的访问数据通信速度，GPRS技术还具有在任何时间、任何地点都能实现连接，永远在线、按流量计费等特点。EDGE技术进一步提升了数据传输的速率到384K-473K，被称为”2.75G”，数据传输速率更2倍于GPRS。目前，国内的GSM网络普遍具有GPRS通讯功能，移动和联通的网络都支持GPRS，EDGE在部分省市实现了网络覆盖。
GPRS模块，是具有GPRS数据传输功能的GSM模块。GPRS模块就是一个精简版的手机，集成GSM通信的主要功能于一块电路板上，具有发送短消息、通话、数据传输等功能。GPRS模块相当于手机的核心部分，如果增加键盘和屏幕就是一个完整的手机。普通电脑或者单片机可以通过RS232串口与GPRS模块相连，通过AT指令控制GPRS模块实现各种基于GSM的通信功能。
GPRS模块区别于传统的纯短信模块，两者都是GSM模块，但是短信模块只能收发短信和语音通讯，而GPRS模块还具有GPRS数据传输功能。”
二.配置内核支持ppp拨号上网
Generic Driver Options --->
--- Network device support
*** CAIF transport drivers ***
<*> PPP (point-to-point protocol) support
[*] PPP multilink support (EXPERIMENTAL)
[*] PPP filtering
<*> PPP support for async serial ports
<*> PPP support for sync tty ports
<*> PPP Deflate compression
<*> PPP BSD-Compress compression
<*> PPP MPPE compression (encryption) (EXPERIMENTAL)
<*> PPP over Ethernet (EXPERIMENTAL)
三.下载解压ppp-2.4.4.tar.gz
http://download.csdn href="http://lib.csdn.net/base/dotnet" target=_blank>.NET /detail/zhyustar/1531748
[Ciel@localhost sim900]$ ls
ppp-2.4.4 ppp-2.4.4.tar.gz
[Ciel@localhost sim900]$ cd ppp-2.4.4
[Ciel@localhost ppp-2.4.4]$ ./configure
[Ciel@localhost ppp-2.4.4]$ ls
Changes-2.3 common contrib FAQ Linux modules pppd pppstats
README.cbcp README.linux README.MSCHAP80 README.pppoe README.sol2 SETUP
chat configure etc.ppp include Makefile PLUGINS pppdump README README.eap-srp README.MPPE README.MSCHAP81 README.pwfd scripts solaris
[Ciel@localhost ppp-2.4.4]$ cd chat/
[Ciel@localhost chat]$ vim chat.c
[Ciel@localhost chat]$ vim Makefile
[Ciel@localhost pppd]$ vim auth.c
[Ciel@localhost pppd]$ vim Makefile
[Ciel@localhost ppp-2.4.4]$ make
[Ciel@localhost chat]$ ls
chat chat.8 chat.c chat.o Makefile Makefile.linux Makefile.sol2
[Ciel@localhost chat]$ file chat
chat: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), not stripped
[Ciel@localhost pppd]$ file pppd
pppd: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), not stripped
把chat 和 pppd 两个文件 tf
4000
tp 到开发板并放到 /usr/sbin/ 下
四. 开发板下脚本的编写
在 /etc 下 创建一个 ppp 的文件夹：>: mkdir /etc/ppp
1.在其目录下编写 chat 脚本：
2.编写gprs脚本
在 /etc/ppp/peer/ 下编写GPRS脚本
五.测试
>: ifconfig
eth0 Link encap:Ethernet HWaddr F2:C1:05:50:86:D7
inet addr:192.168.1.111 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:51 Base address:0x2300
>: ifconfig eth0 down
>: ifconfig
>: pppd call gprs &
>: abort on (BUSY)
abort on (NO ANSWER)
abort on (NO CARRIER)
abort on (NO DIALTONE)
abort on (ERROR)
abort on (\nRING\r\n\r\nRING\r)
timeout set to 20 seconds
send (^MAT^M)
expect (OK)
^MAT^M^M
OK
-- got it
send (AT+CGDCONT=1,"IP","cmnet"^M)
expect (OK)
^M
AT+CGDCONT=1,"IP","cmnet"^M^M
OK
-- got it
send (ATDT*99***1#^M)
Waiting for connect...
expect (CONNECT)
^M
ATDT*99***1#^M^M
CONNECT
-- got it
send (^M)
Connect Success!
Serial connection established.
using channel 1
Using interface ppp0
Connect: ppp0 <--> /dev/ttyS1
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x37c1dc9c> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x1 <asyncmap 0xa0000> <auth pap>]
sent [LCP ConfAck id=0x1 <asyncmap 0xa0000> <auth pap>]
rcvd [LCP ConfRej id=0x1 <magic 0x37c1dc9c> <pcomp> <accomp>]
sent [LCP ConfReq id=0x2 <asyncmap 0x0>]
rcvd [LCP ConfAck id=0x2 <asyncmap 0x0>]
No secret found for PAP login
sent [PAP AuthReq id=0x1 user="root" password=<hidden>]
rcvd [PAP AuthAck id=0x1 "Login OK"]
Remote message: Login OK
PAP authentication succeeded
sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15> <bsd v1 15>]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [LCP ProtRej id=0x2 80 fd 01 01 00 0f 1a 04 78 00 18 04 78 00 15 03 2f]
Protocol-Reject for 'Compression Control Protocol' (0x80fd) received
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [IPCP ConfReq id=0x1 <addr 192.200.1.21>]
sent [IPCP ConfAck id=0x1 <addr 192.200.1.21>]
rcvd [IPCP ConfRej id=0x1 <compress VJ 0f 01>]
sent [IPCP ConfReq id=0x2 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [IPCP ConfNak id=0x2 <addr 10.46.58.195> <ms-dns1 211.137.58.20> <ms-dns3 211.137.64.163>]
sent [IPCP ConfReq id=0x3 <addr 10.46.58.195> <ms-dns1 211.137.58.20> <ms-dns3 211.137.64.163>]
rcvd [IPCP ConfAck id=0x3 <addr 10.46.58.195> <ms-dns1 211.137.58.20> <ms-dns3 211.137.64.163>]
local IP address 10.46.58.195
remote IP address 192.200.1.21
primary DNS address 211.137.58.20
secondary DNS address 211.137.64.163
>: ifconfig
ppp0 Link encap:Point-to-Point Protocol
inet addr:10.46.58.195 P-t-P:192.200.1.21 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:10 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:352 (352.0 B) TX bytes:205 (205.0 B)
>: ping www.baidu.com
PING www.baidu.com (103.235.46.39): 56 data bytes
64 bytes from 103.235.46.39: seq=0 ttl=47 time=340.735 ms
64 bytes from 103.235.46.39: seq=1 ttl=47 time=335.719 ms
64 bytes from 103.235.46.39: seq=2 ttl=47 time=370.038 ms
64 bytes from 103.235.46.39: seq=3 ttl=47 time=342.606 ms
64 bytes from 103.235.46.39: seq=4 ttl=47 time=339.175 ms
64 bytes from 103.235.46.39: seq=5 ttl=47 time=335.791 ms
64 bytes from 103.235.46.39: seq=6 ttl=47 time=327.735 ms
--- www.baidu.com ping statistics ---
7 packets transmitted, 7 packets received, 0% packet loss
round-trip min/avg/max = 327.735/341.685/370.038 ms
这样呢，就是可以上网了。
Cross compiler：arm-linux-gcc-4.5.4
Linux kernel version：linux-3.0
Development board：fl2440
Author: Yuzhonghan <754270866@qq.com>
-----------------------------------------------------------------------
博文提醒：在开发GPRS模块时所准备的开通GPRS流量的sim卡需要能正常使用！！！
一.GPRS概述：
GSM模块，是将GSM射频芯片、基带处理芯片、存储器、功放器件等集成在一块线路板上，具有独立的操作系统、GSM射频处理、基带处理并提供标准接口的功能模块。GSM模块根据其提供的数据传输速率又可以分为GPRS模块、EDGE模块和纯短信模块。短信模块只支持语音和短信服务。GPRS，可说是GSM的延续。它经常被描述成“2.5G”，也就是说这项技术位于第二代（2G）和第三代（3G）移动通讯技术之间。GPRS的传输速率从56K到114Kbps不等，理论速度最高达171k。相对于GSM的9.6kbps的访问速度而言，GPRS拥有更快的访问数据通信速度，GPRS技术还具有在任何时间、任何地点都能实现连接，永远在线、按流量计费等特点。EDGE技术进一步提升了数据传输的速率到384K-473K，被称为”2.75G”，数据传输速率更2倍于GPRS。目前，国内的GSM网络普遍具有GPRS通讯功能，移动和联通的网络都支持GPRS，EDGE在部分省市实现了网络覆盖。
GPRS模块，是具有GPRS数据传输功能的GSM模块。GPRS模块就是一个精简版的手机，集成GSM通信的主要功能于一块电路板上，具有发送短消息、通话、数据传输等功能。GPRS模块相当于手机的核心部分，如果增加键盘和屏幕就是一个完整的手机。普通电脑或者单片机可以通过RS232串口与GPRS模块相连，通过AT指令控制GPRS模块实现各种基于GSM的通信功能。
GPRS模块区别于传统的纯短信模块，两者都是GSM模块，但是短信模块只能收发短信和语音通讯，而GPRS模块还具有GPRS数据传输功能。”
二.配置内核支持ppp拨号上网
Generic Driver Options --->
--- Network device support
*** CAIF transport drivers ***
<*> PPP (point-to-point protocol) support
[*] PPP multilink support (EXPERIMENTAL)
[*] PPP filtering
<*> PPP support for async serial ports
<*> PPP support for sync tty ports
<*> PPP Deflate compression
<*> PPP BSD-Compress compression
<*> PPP MPPE compression (encryption) (EXPERIMENTAL)
<*> PPP over Ethernet (EXPERIMENTAL)
三.下载解压ppp-2.4.4.tar.gz
http://download.csdn
[Ciel@localhost sim900]$ ls
ppp-2.4.4 ppp-2.4.4.tar.gz
[Ciel@localhost sim900]$ cd ppp-2.4.4
[Ciel@localhost ppp-2.4.4]$ ./configure
[Ciel@localhost ppp-2.4.4]$ ls
Changes-2.3 common contrib FAQ Linux modules pppd pppstats
README.cbcp README.linux README.MSCHAP80 README.pppoe README.sol2 SETUP
chat configure etc.ppp include Makefile PLUGINS pppdump README README.eap-srp README.MPPE README.MSCHAP81 README.pwfd scripts solaris
[Ciel@localhost ppp-2.4.4]$ cd chat/
[Ciel@localhost chat]$ vim chat.c
[Ciel@localhost chat]$ vim Makefile
[Ciel@localhost pppd]$ vim auth.c
[Ciel@localhost pppd]$ vim Makefile
[Ciel@localhost ppp-2.4.4]$ make
[Ciel@localhost chat]$ ls
chat chat.8 chat.c chat.o Makefile Makefile.linux Makefile.sol2
[Ciel@localhost chat]$ file chat
chat: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), not stripped
[Ciel@localhost pppd]$ file pppd
pppd: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), not stripped
把chat 和 pppd 两个文件 tf
4000
tp 到开发板并放到 /usr/sbin/ 下
四. 开发板下脚本的编写
在 /etc 下 创建一个 ppp 的文件夹：>: mkdir /etc/ppp
1.在其目录下编写 chat 脚本：
2.编写gprs脚本
在 /etc/ppp/peer/ 下编写GPRS脚本
五.测试
>: ifconfig
eth0 Link encap:Ethernet HWaddr F2:C1:05:50:86:D7
inet addr:192.168.1.111 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:51 Base address:0x2300
>: ifconfig eth0 down
>: ifconfig
>: pppd call gprs &
>: abort on (BUSY)
abort on (NO ANSWER)
abort on (NO CARRIER)
abort on (NO DIALTONE)
abort on (ERROR)
abort on (\nRING\r\n\r\nRING\r)
timeout set to 20 seconds
send (^MAT^M)
expect (OK)
^MAT^M^M
OK
-- got it
send (AT+CGDCONT=1,"IP","cmnet"^M)
expect (OK)
^M
AT+CGDCONT=1,"IP","cmnet"^M^M
OK
-- got it
send (ATDT*99***1#^M)
Waiting for connect...
expect (CONNECT)
^M
ATDT*99***1#^M^M
CONNECT
-- got it
send (^M)
Connect Success!
Serial connection established.
using channel 1
Using interface ppp0
Connect: ppp0 <--> /dev/ttyS1
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x37c1dc9c> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x1 <asyncmap 0xa0000> <auth pap>]
sent [LCP ConfAck id=0x1 <asyncmap 0xa0000> <auth pap>]
rcvd [LCP ConfRej id=0x1 <magic 0x37c1dc9c> <pcomp> <accomp>]
sent [LCP ConfReq id=0x2 <asyncmap 0x0>]
rcvd [LCP ConfAck id=0x2 <asyncmap 0x0>]
No secret found for PAP login
sent [PAP AuthReq id=0x1 user="root" password=<hidden>]
rcvd [PAP AuthAck id=0x1 "Login OK"]
Remote message: Login OK
PAP authentication succeeded
sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15> <bsd v1 15>]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [LCP ProtRej id=0x2 80 fd 01 01 00 0f 1a 04 78 00 18 04 78 00 15 03 2f]
Protocol-Reject for 'Compression Control Protocol' (0x80fd) received
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [IPCP ConfReq id=0x1 <addr 192.200.1.21>]
sent [IPCP ConfAck id=0x1 <addr 192.200.1.21>]
rcvd [IPCP ConfRej id=0x1 <compress VJ 0f 01>]
sent [IPCP ConfReq id=0x2 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [IPCP ConfNak id=0x2 <addr 10.46.58.195> <ms-dns1 211.137.58.20> <ms-dns3 211.137.64.163>]
sent [IPCP ConfReq id=0x3 <addr 10.46.58.195> <ms-dns1 211.137.58.20> <ms-dns3 211.137.64.163>]
rcvd [IPCP ConfAck id=0x3 <addr 10.46.58.195> <ms-dns1 211.137.58.20> <ms-dns3 211.137.64.163>]
local IP address 10.46.58.195
remote IP address 192.200.1.21
primary DNS address 211.137.58.20
secondary DNS address 211.137.64.163
>: ifconfig
ppp0 Link encap:Point-to-Point Protocol
inet addr:10.46.58.195 P-t-P:192.200.1.21 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:10 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:352 (352.0 B) TX bytes:205 (205.0 B)
>: ping www.baidu.com
PING www.baidu.com (103.235.46.39): 56 data bytes
64 bytes from 103.235.46.39: seq=0 ttl=47 time=340.735 ms
64 bytes from 103.235.46.39: seq=1 ttl=47 time=335.719 ms
64 bytes from 103.235.46.39: seq=2 ttl=47 time=370.038 ms
64 bytes from 103.235.46.39: seq=3 ttl=47 time=342.606 ms
64 bytes from 103.235.46.39: seq=4 ttl=47 time=339.175 ms
64 bytes from 103.235.46.39: seq=5 ttl=47 time=335.791 ms
64 bytes from 103.235.46.39: seq=6 ttl=47 time=327.735 ms
--- www.baidu.com ping statistics ---
7 packets transmitted, 7 packets received, 0% packet loss
round-trip min/avg/max = 327.735/341.685/370.038 ms
这样呢，就是可以上网了。
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