Huawei MU609 - Troubleshooting; Setting Hardware Flow Control; Reference Process

HUAWEI MU609 HSPA LGA Module
Application Guide
Serial Port Configuration Application Scenarios
Issue 02 (2013-09-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
25
AT&C1
Set the DCD pin to be valid when there are ongoing
data services and invalid after data services are
disconnected.
OK
3.3.2 Troubleshooting
Scenario
Possible Error
Information
Solution
AT&C2
ERROR
Unsupported parameter value
3.4 Setting Hardware Flow Control
3.4.1 Reference Process
Command
Description
AT+IFC=0,0
Turn hardware flow control off. After hardware flow
control is turned off, communication between the UE and
the DTC is not restricted by flow control.
OK
AT+IFC=2,2
Turn hardware flow control on. After hardware flow
control is turned on, communication between the UE and
the TE is restricted by flow control: Data transmission
stops when UE's or TE's buffer level exceeds 80% and
resumes when the buffer level is below 20%.
OK
Note:
If hardware flow control is enabled, no AT commands can be executed.
3.4.2 Troubleshooting
None