Chengdu Ebyte Electronic Technology Co,.Ltd E810-DTU User Manual
Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co,.Ltd
Function: query/set serial port corresponding to SOCKET B1 cache clearing function.
Format: query
Send: AT+ UARTCLRB1 <cr>
Return: <cr><lf>+OK=< sw ><cr><lf>
Set up the
Send: AT+ UARTCLRB1 =< sw ><cr>
Returns: < CR > < LF > + OK < CR > < LF >
Parameters:
Sw switch
ON clears the cache data of the SOCKET B1 link, but does not clear the serial cache data.
OFF does not clear the cached data of the SOCKET B1 link.
Example: AT+ UARTCLRB1=ON<cr>
7.4.30 AT+CONMAXA1: query/set the maximum number of connections allowed for TCP Server
Function: query/set the maximum allowable connections of TCP Server.
Format: query
Send: AT+ CONMAXA1 <cr>
Return: <cr><lf>+OK=< num ><cr><lf>
Set up the
Send: AT+ CONMAXA1 =< num ><cr>
Returns: < CR > < LF > + OK < CR > < LF >
Parameters:
Num TCP Server maximum number of connections allowed, range from 1 to 6.
Example: the AT + CONMAXA1 = 5 < CR >
7.4.31 AT+KEPALVA1: query/set the keep-alive parameter of SOCKET A1 corresponding to the serial port
Function: query/set the keep-alive parameter of SOCKET A1.
Format: query
Send: AT + KEEPALIVEA1 < CR >
Returns: < CR > < LF > + OK = < time, intv, the probes > < CR > < LF >
Set up the
Send: AT + KEEPALIVEA1 = < time, intv, the probes > < CR >
Returns: < CR > < LF > + OK < CR > < LF >
Parameters:
Time TCP link after how many seconds no datagram transmission starts probe message
0: turn off KeepAlive
2~7200: KeepAlive function is enabled with intv,probes, and time parameters in effect
Unit S in seconds
The time interval between the previous probe message of intv and the next probe message of intv
2~7200, unit S (seconds)
The maximum number of probe failures to which the TCP connection is disconnected when the probes fails
2~255, unit: times
Example: the AT + KEEPALIVEA1 = 10,5,20 < CR >