LTE Module Series
EC20 R2.0 TCP/IP AT Commands Manual
EC20_R2.0_TCP/IP_AT_Commands_Manual Confidential / Released 3 / 43
Contents
About the Document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 3
Table Index ................................................................................................................................................... 5
1 Introduction .......................................................................................................................................... 6
1.1. The Process of Using TCP/IP AT Commands ............................................................................. 6
1.2. Description of Data Access Modes .............................................................................................. 8
2 Description of TCP/IP AT Commands ............................................................................................. 10
2.1. Description of AT Commands .................................................................................................... 10
2.1.1. AT+QICSGP Configure Parameters of a TCP/IP Context .......................................... 10
2.1.2. AT+QIACT Activate a PDP Context ............................................................................ 11
2.1.3. AT+QIDEACT Deactivate a PDP Context ................................................................... 12
2.1.4. AT+QIOPEN Open a Socket Service .......................................................................... 13
2.1.5. AT+QICLOSE Close a Socket Service ........................................................................ 14
2.1.6. AT+QISTATE Query Socket Service Status ................................................................ 15
2.1.7. AT+QISEND Send Data .............................................................................................. 17
2.1.8. AT+QIRD Retrieve the Received TCP/IP Data ........................................................... 19
2.1.9. AT+QISENDEX Send Hex String ................................................................................ 20
2.1.10. AT+QISWTMD Switch Data Access Modes ................................................................ 21
2.1.11. AT+QPING Ping a Remote Server .............................................................................. 22
2.1.12. AT+QNTP Synchronize Local Time with NTP Server ................................................. 23
2.1.13. AT+QIDNSCFG Configure Address of DNS Server ................................................... 24
2.1.14. AT+QIDNSGIP Get IP Address by Domain Name ...................................................... 24
2.1.15. AT+QICFG Configure Optional Parameters ............................................................... 25
2.1.16. AT+QISDE Control Whether to Echo the Data for AT+QISEND ................................. 27
2.1.17. AT+QIGETERROR Query the Last Error Code .......................................................... 28
2.2. Description of URC .................................................................................................................... 29
2.2.1. URC of Connection Closed ............................................................................................ 29
2.2.2. URC of Incoming Data ................................................................................................... 29
2.2.3. URC of Incoming Connection Full.................................................................................. 30
2.2.4. URC of Incoming Connection ........................................................................................ 30
2.2.5. URC of PDP Deactivation .............................................................................................. 30
3 Examples ............................................................................................................................................ 32
3.1. Configure and Activate a Context .............................................................................................. 32
3.1.1. Configure a Context ....................................................................................................... 32
3.1.2. Activate a Context .......................................................................................................... 32
3.1.3. Deactivate a Context ...................................................................................................... 32
3.2. TCP Client Works in Buffer Access Mode ................................................................................. 33
3.2.1. Set up a TCP Client Connection and Enter into Buffer Access Mode ........................... 33
3.2.2. Send Data in Buffer Access Mode ................................................................................. 33
3.2.3. Receive Data from Remote Server in Buffer Access Mode ........................................... 34
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星湖三文鱼2019-07-02还不错的资源啊
