HUAWEI MU609 HSPA LGA Module
Application Guide
Internal Protocol Stack Application Scenarios
Issue 02 (2013-09-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
38
Notes:
IPSEND
and mode 0 of
IPSENDEX
can send displayable characters only. Mode 1 and
mode 2 of
IPSENDEX
can send all characters.
In Mode 2 of IPSENDEX (length restriction mode), except the port that receives data
entered by the user, all other ports are unavailable before the user finishes entering the
user data.
5.4.2
Troubleshooting
Scenario
Possible Error
Information
Solution
AT^IPSEND=1,"data"
+CME ERROR: The
network has not been
opened yet
Before sending data, initialize
the protocol stack or accept the
link as a server.
AT^IPSEND=1,"data"
+CME ERROR:
Remain data is
sending
The module is exiting
transparent transmission mode
and cannot send data. Wait
until the module completely
exits transparent transmission
mode.
AT^IPSEND=1,"data"
+CME ERROR: The
link has not been
established yet
Before sending data, create a
link or accept the link as a
server.
AT^IPSEND=1,"data"
+CME ERROR:
Normal error
The module failed to send the
data. Ensure that the current
network's signal strength is
good.
AT^IPSENDEX=1,2,<d
atalen>
+CME ERROR: Too
many data to be sent
The length of the data entered
by the user exceeds the length
specified by the command.
Ensure that the length of the
data is equal to the data length
specified by mode 2 of
IPSENDEX
.
5.5 Closing TCP/UDP Links
5.5.1
Reference Process
Command
Description
AT^IPCLOSE=<link_id>
Close the specified link, server, or network, and
at the same time release the corresponding
resources. For details about the parameters,
refer to the related AT command document.
