请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。
我正在尝试使用 Quectel M95 GPRS 硬件将设备连接到具有 TLS1.2安全性的 IBM Bluemix。
谁能帮助我为什么不能打开 SSL 连接？ 我将 QSSLOPEN 命令响应设置为'-1'。
命令触发序列为：
{ "ate0", "OK", 20, 2500, 0 }, { "at+cpin=?", "OK", 6, 6000, 0 }, { "at+qinistat", "+QINISTAT: 3", 25, 350, 0 }, { "at+creg?", "+CREG:", SIM_MAX_REG, 350, 0 }, { "at+clip=1","OK",5,350, 0 }, { "at+qaudch=2", "OK", 5, 350, 0 }, { "at+clvl=50", "OK", 5, 350, 0 }, { "at+qmic=0,14", "OK", 5, 350, 0 }, { "ats0=0", "OK", 5, 350, 0 }, { "at+qspn?", "+QSPN:", 3, 350, 0 }, { "at+cmgf=1", "OK", 5, 350, 0 }, { "at+cscs=\"ira\"", "OK", 5, 350, 0 }, { "at+csmp=49,167,0,241", "OK", 5, 350, 0 }, { "at+cnmi=2,1,0,1,0", "OK", 5, 350, 0 }, { "at+qifgcnt=0", "OK", 5, 350, 0 }, { "at+qimux=1", "OK", 5, 350, 0 }, { "at+qidnsip=", "OK", 5, 350, 5 }, { "at+qicsgp=1,", "OK", 5, 350, 2 }, { "at+qimode=0", "OK", 5, 350, 0 }, { "at+cgreg?", "+CGREG:", GPRS_MAX_REG, 350, 0 }, { "at+qiregapp", "OK", 5, 350, 0 }, { "at+qiact", "OK", 15, 2000, 0 }, { "at+qindi=1", "OK", 5, 350, 0 }, handle { "at+qisde=0", "OK", 5, 350, 0 }, //21 Control { "AT+QSSLCFG=\"ignorertctime\",1","OK",5,350, 0 }, //22 { "AT+QSSLCFG=\"sslversion\",0,4","OK",5,350, 0 }, //22 { "AT+QSSLCFG=\"ciphersuite\",0,\"0X009C,0X009D\"","OK",5,350, 0 }, //23 { "AT+QSSLCFG=\"seclevel\",0,1","OK",5,350, 0 }, //24 { "AT+QSSLCFG=\"seclevel\",0,2","OK",5,350, 0 }, //24 { "AT+QSSLCFG=\"ctxindex\",0","OK",5,350, 0 }, //24 { "AT+QSSLCFG=\"cacert\",0,\"RAM:cacert.pem\"","OK",5,350, 0 }, //25 { "AT+QSSLCFG=\"clientcert\",0,\"RAM:client.pem\"","OK",5,350, 0 }, //26 { "AT+QSSLCFG=\"clientkey\",0,\"RAM:userkey.pem\"","OK",5,350, 0 }, //26 { "at+qsslopen=0,0,","+QSSLOPEN:",5, 35000, 3 }, //28 Start { "at+qiopen=1,\"tcp\",","CONNECT",3, 1000, 4 }, //29 Start { "at+qsslstate", "+QSSLSTATE:", 10, 2500, 0 }, //30 { "at+qsslsend", ">", 3, 1000, 1 }, //31 Send { "at+qisend", ">", 3, 1000, 1 }, //25 Send d { "at+qsslrecv=0,0,512", "+QSSLRECV:", 2, 750, 0 }, //32 Read { "at+qird=0,1,1,512", "+QIRD:", 2, 750, 0 }, //33 Read { "at+qiopen=0,\"tcp\",","CONNECT",5, 5000, 3 }, //22 Start { "at+qiopen=1,\"tcp\",","CONNECT",3, 5000, 4 }, //23 Start { "at+qistate", "STATE:", 10, 2500, 0 }, //24 { "at+qisend", ">", 3, 1000, 1 }, //25 Send { "at+qisend", ">", 3, 1000, 1 }, //25 Send { "at+qird=0,1,0,512", "+QIRD:", 2, 750, 0 }, //26 Read { "at+qird=0,1,1,512", "+QIRD:", 2, 750, 0 }, //27 Read { "at+qisack","+QISACK",2,1000, 0 }, //34 { "at+qsslclose=0","CLOSE",8,350, 0 }, //35 Close { "at+qiclose=0","CLOSE",8,350, 0 }, //29 Close { "at+qiclose=1","CLOSE",8,350, 0 }, //36 Close { "at+qccid"," ",5,350, 0 }, //37 Show { "at+cnum","+CNUM:",3,350, 0 }, //38 { "at+qilocip"," ",5,350, 0 }, //39 Get { "ata", "OK", 5, 350, 0 }, //40 Answer { "ath", "OK", 3, 350, 0 }, //41 { "atd", "OK", 5, 350, 0 }, //42 { "at+qcellloc=1", "+QCELLLOC", 3, 2000, 0 }, //43 { "at+qhttpurl=","CONNECT",10, 500, 0 }, //44 Set { "http:// ","OK",6, 500, 0 }, //45 Set { "at+qhttpget=60","OK",3, 61000, 0 }, //46 HTTP { "at+qhttpread=60","CONNECT",3, 61000, 0 }, //47 Read { "at+ctzu=3","OK",3,350, 0 }, //48 Network { "at+qnitz=1","OK",3,350, 0 }, //49 Network { "at+cclk?","+CCLK:",3,350, 0 }, //50 Clock { "at+qmgda=\"del all\"","OK",4,750, 0 }, //51 Delete { "at+csq","CSQ:",3,350, 0 }, //52 Read { "at+gsn"," ",3,350, 0 }, //53 Read { "at+qpowd=0","OK",3,350, 0 }, //54 Power { "at+cfun=4","OK",5,350, 0 }, //55 Power /********** SSL Connection *********/ { "at+qsslrecv=","+QSSLRECV:",5,350, 0 }, //56 AT+QSSLRECV Retrieve { "at+qsslstate","+QSSLSTATE:",5,350, 0 }, //57 AT+QSSLSTATE Query { "at+qsecwrite=","CONNECT",3,500, 0 }, //58 AT+QSECWRITE Add a { "at+qsecread=","+QSECREAD:",3,500, 0 }, //59 AT+QSECREAD Query { "at+qsecdel=","OK",5,350, 0 }, //60 AT+QSECDEL Delete a
我在每个命令的 Enumers 的帮助下触发命令，并尝试以两种模式触发命令：
- 使用安全性将触发 QSSL CFG 命令。
- 如果没有 TLS1.2安全性、则将建立不带密件的正常 TCPIP 连接。
我在代码中提供了组织 ID、身份验证用户名、身份验证密码。
因此、请在这个问题上帮助我...
此外、如果您能向我推荐一本实用的书、其中介绍了有关物联网编程的编码概念和示例、将会非常有帮助。
