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昨天把開發(fā)板的bootloader刪了,沒辦法,只得在PC上調(diào)GPRS撥號(hào)了.先在windows下?lián)芴?hào)成功,然后用工具看撥號(hào)時(shí)具體使用了哪些AT命令,再使用這些命令到linux下使用pppd來?yè)芴?hào),最后終于成功了,之前開發(fā)板上不能成功撥號(hào)極有可就是AT指令有問題,現(xiàn)在只有等開發(fā)板回來后再到ARM7上調(diào)了. 下面貼一下?lián)芴?hào)使用的幾個(gè)腳本,GPRS模塊是使用的華為的GTM900-B: 1, /etc/ppp/peers/gprs: 復(fù)制內(nèi)容到剪貼板
代碼:#/etc/ppp/peers/gprs 2, gprs-connect-chat:
# This is pppd script for China Mobile, used Huawei GTM900-B GPRS Module # Usage: root>pppd call gprs /dev/ttyS0 19200 crtscts 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 '/bin/chat -v -s -f /etc/ppp/gprs-connect-chat' #disconnect '/bin/chat -v -f /etc/ppp/gprs-disconnect-chat' 復(fù)制內(nèi)容到剪貼板
代碼:#/etc/ppp/gprs-connect-chat 3, 用于chap認(rèn)證的密碼文件:chap-secrets,由于移動(dòng)的GPRS服務(wù)不需要用戶名和密碼,所以剛開始沒設(shè)用戶名和密碼,結(jié)果在chap認(rèn)證的時(shí)候總不能通過.后來在gprs里添加user "cmnet"和這個(gè)密碼文件后就OK了.
# chat script for China Mobile, used HuaWei GTM900-B GPRS 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 ATDT*99***1# CONNECT '' 復(fù)制內(nèi)容到剪貼板
代碼:#/etc/ppp/chap-secrets 4, 另外還有個(gè)可選的,斷開連接的腳本如下:
#client server secret IP address "cmnet" * "cmnet" * 復(fù)制內(nèi)容到剪貼板
代碼:ABORT OK 使用: 將PC上的DNS刪掉后運(yùn)行如下:ABORT BUSY ABORT DELAYED ABORT "NO ANSWER" ABORT "NO CARRIER" ABORT "NO DIALTONE" ABORT VOICE ABORT ERROR ABORT RINGING TIMEOUT 12 "" \\k\\k\\k\\d+++ATH " [root@localhost ppp]# pppd call gprs timeout set to 15 seconds abort on (DELAYED) abort on (BUSY) abort on (ERROR) abort on (NO DIALTONE) abort on (NO CARRIER) timeout set to 40 seconds send (^MAT^M) expect (OK) ^M^M OK -- got it send (ATS0=0^M) expect (OK) ^M AT^M OK -- got it send (ATE0V1^M) expect (OK) ^M ATS0=0^M^M OK -- got it send (AT+CGDCONT=1,"IP","CMNET"^M) expect (OK) ^M ATE0V1^M^M OK -- got it send (ATDT*99***1#^M) expect (CONNECT) ^M ^M OK^M ^M CONNECT -- got it send (^M) Serial connection established. using channel 42 Using interface ppp0 Connect: ppp0 <--> /dev/ttyS0 sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x8c5e3d45> <pcomp> <accomp>] rcvd [LCP ConfRej id=0x1 <magic 0x8c5e3d45>] sent [LCP ConfReq id=0x2 <asyncmap 0x0> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x2 <asyncmap 0x0> <pcomp> <accomp>] rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <auth chap MD5> <pcomp> <accomp>] sent [LCP ConfAck id=0x1 <asyncmap 0x0> <auth chap MD5> <pcomp> <accomp>] rcvd [CHAP Challenge id=0x1 <fb17db52a81bc14997f72e2932ab0b342bab961d49c611>, name = ""] sent [CHAP Response id=0x1 <2c757eac52b8d9a7d80ca7a77c419ad9>, name = "cmnet"] rcvd [CHAP Success id=0x1 ""] CHAP authentication succeeded sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 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=0x1 80 fd 01 01 00 0c 1a 04 78 00 18 04 78 00] rcvd [IPCP ConfReq id=0x1 <addr 221.177.160.163>] sent [IPCP ConfAck id=0x1 <addr 221.177.160.163>] 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 10.165.226.25> <ms-dns1 211.137.64.163> <ms-dns3 211.136.20.203>] sent [IPCP ConfReq id=0x3 <addr 10.165.226.25> <ms-dns1 211.137.64.163> <ms-dns3 211.136.20.203>] rcvd [IPCP ConfAck id=0x3 <addr 10.165.226.25> <ms-dns1 211.137.64.163> <ms-dns3 211.136.20.203>] local IP address 10.165.226.25 remote IP address 221.177.160.163 primary DNS address 211.137.64.163 secondary DNS address 211.136.20.203 再將這里的DNS給PC或作個(gè)連接到/etc/ppp/resolf.conf應(yīng)該就OK了. 有IP,網(wǎng)關(guān),DNS之后就能上www.mcuos.com了.... | |
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