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HUAWEI MC509 CDMA LGA Module
AT Command Interface Specification
Serial Port Control Commands
Issue 01 (2011-08-26)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
56
Automatic detection of the baud rate is not supported at present. Therefore, the first
returned parameter list is blank when the test command is executed. For example:
+IPR:(),(300,600,1200,2400,4800,9600,19200,38400,57600,115200,230400)
If the physical serial port baud rate is higher than the radio bearer rate, data may be lost
when being transmitted.
After the baud rate is changed, wait for a period of time (for example, 100 ms) before
continuing the communication.
5.5.3 Parameter Description
<rate>: Specifies the baud rate. It is a decimal integer. The values are as follows:
300,600,1200,2400,4800,9600,19200,38400,57600,115200,230400
AT+IPR without a parameter is equivalent to AT+IPR=115200.
5.6 +IFC–Command for Setting Flow Control
5.6.1 Syntax
Command
Possible Response(s)
+IFC[=<DCE_by_DTE>
[,<DTE_by_DCE>]]
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
+IFC?
<CR><LF>+IFC:<DCE_by_DTE>,<DTE_by_DCE><
CR><LF>
<CR><LF>OK<CR><LF>
+IFC=?
<CR><LF>+IFC:(supported <DCE_by_DTE> list),
(supported <DTE_by_DCE> list)<CR><LF>
<CR><LF>OK<CR><LF>
5.6.2 Interface Description
This command sets and queries bidirectional flow control.
5.6.3 Parameter Description
<DCE_by_DTE>:
0: none (default value after startup)