User's Manual

HF-A21-SMT Embedded WiFi Module User Manual
Shanghai High-Flying Electronics Technology Co., Ltd
www.hi-flying.com
47
This Instruction only effective for HF-A21-SMT works as AP. After HF-A21-SMT module boots up
again, the setting will be effective. But user can set this command when module configured as
STA.
4.2.2.23. AT + DHCPDEN
 Function: Enable/Disable LAN DHCP server function;
 Format:
 Query Operation
AT+DHCPDEN<CR>
+ok=<sta><CR>< LF ><CR>< LF >
 Set Operation
AT+ DHCPDEN=<sat><CR>
+ok<CR>< LF ><CR>< LF >
 Parameters:
 sta. if Enable/Disable LAN DHCP server function;
 on: Enable LAN DHCP server function.
 off: Disable LAN DHCP server function.
4.2.2.24. AT+ DHCPGW
 Function: Set/Query DHCP gateway address;
 Format:
 Query Operation
AT+ DHCPGW<CR>
+ok=<address><CR>< LF ><CR>< LF >
 Set Operation
AT+ DHCPGW=<address ><CR>
+ok<CR>< LF ><CR>< LF >
 Parameters:
 address: DHCP gate address;
4.2.2.25. AT+ TCPTO
 Function: Set/Query TCP timeout;
 Format:
 Query Operation
AT+ TCPTO<CR>
+ok=<time><CR>< LF ><CR>< LF >
 Set Operation
AT+ TCPTO=<time ><CR>
+ok<CR>< LF ><CR>< LF >
 Parameters:
 time: TCP timeout time.
 <= 600, (600s);
 >=0, (0 means no timeout);
 Default, 300s;
4.2.2.26. AT+ MAXSK
 Function: Set/Query maxima TCP connection;
 Format:
 Query Operation
AT+ MAXSK<CR>
+ok=<num><CR>< LF ><CR>< LF >
 Set Operation
AT+ MAXSK =<num ><CR>
+ok<CR>< LF ><CR>< LF >
 Parameters: