Multitech MMCModem GPRS (MTMMC-G) Manual de usuario Pagina 8

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Chapter 2 – General Configuration AT Commands
Multi-Tech Systems, Inc. IP Connectivity AT Commands for GPRS-F4 Wireless Modems (PN S000437C) 8
IP Stack Handling +WIPCFG Continued
6 WIP_NET_OPT_SOCK_MAX
Total number of sockets (TCP and UDP)
Range: 1-172 (default value: 8)
7 WIP_NET_OPT_BUF_MAX
Total number of network buffers
Range: 4-42 (default value: 32)
8 WIP_NET_OPT_IP_MULTI_MAX
Total number of multicast group
Caution: The option WIP_NET_OPT_IP_MULTI_MAX is a read only
parameter.
9 WIP_NET_OPT_IP_ROUTE_MAX
Size of IP routing table
Range: 0-2730 (default value: 0)
10 WIP_NET_OPT_RSLV_QUERY_MAX
Maximum number of DNS resolver queries
Range: 1-511 (default value: 4)
11 WIP_NET_OPT_RSLV_CACHE_MAX
Size of DNS resolver cache
Range: 1-292 (default value: 4)
<action> Requested operation on TCP/IP stack parameter management
0 Configuration storage (when existing) is freed
1 Stores the configuration parameters
<value> Value range for different configuration options
<XX.YY.ZZ> WIP soft release version
<A.B> Open AT® OS release version
Parameter Storage: Only one IP stack configuration set can be saved into the FLASH memory.
AT+WIPCFG=4,1 is used to store the TCP/IP stack configuration
parameters into the FLASH memory
AT+WIPCFG=4,0 is used to free the TCP/IP stack configuration storage
Executing AT+WIPCFG=1 will apply default parameters when existing. Still, it is
possible to change option values at run time using
AT+WIPCFG=2,<optnum>,<optvalue>.
Possible Errors: The possible error message is displayed only if “AT+CMEE=1” is activated else
“ERROR” is displayed.
+CMEE AT error code Description
800 invalid option
801 invalid option value
802 not enough memory left
820 error writing configuration in FLASH memory
821 error freeing configuration in FLASH memory
844 stack already started
850 initialization failed
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