AT+i Programmer's Manual - SE Spezial-Electronic AG

General Format
Command Function Parameters/Description
STCP:, Socket TCP
Socket Interface
Opens and connects a TCP socket. If iChip is not
[,]
online, it is connected. The responding system is
assumed to be a server listening on the specified
socket. Returns a handle to the socket.
SUDP:
Socket UDP Opens, connects, and optionally binds a UDP
,
socket. If iChip is not online, it is connected.
[,]
Returns a handle to the socket.
LTCP:
Listening socket Opens a TCP listening socket on . Allows a
,
maximum of concurrent connections.
Returns a handle to the socket. Up to two listening
sockets are supported.
LSST: Listening socket Returns a list of active socket handles accepted for
status
a listening socket identified by handle .
SST: Single socket status Returns status of a single socket identified by
handle . A subset of RP4 report.
SCS: Socket connection Returns status of a single socket identified by
status
handle . A subset of RP4 report. Does not
report number of buffered characters.
SSND[%]:
Socket send Sends a byte stream of size to the socket
,:
identified by handle . The % flag indicates
automatic socket flush.
SRCV: Socket receive Receives a byte stream from the socket identified
[,]
by handle . Accepts up to bytes. If
is not specified, all available bytes are
retrieved.
GPNM: Get peer name Retrieves peer name (:) of a remote
connection to the TCP/UDP socket specified by
socket handle .
SDMP: Dump socket buffer Dumps all buffered data currently accumulated in a
socket‘s input buffer. The socket remains open.
SFSH[%]: Flush socket‘s Flushes (sends immediately) data accumulated in a
outbound data socket‘s outbound buffer. If the flush-andacknowledge
flag (!) is specified, iChip waits for
peer to acknowledge receipt of the TCP packet.
[!]SCLS: Close socket Closes a TCP/UDP socket. If that socket is the only
socket open and the stay online flag (!) is not
specified, iChip terminates the Internet session and
goes offline.
SSL: SSL3/TLS1 socket Negotiates an SSL3/TLS1 connection over an
connection active TCP socket.
AT+i Programmer‘s Manual Version 8.21 2-4