WM620 AT
Command Manual
Copyright © Neoway Technology Co., Ltd
25
2.15 Enabling the Flow Control Function: +IFC
Description
To enable the flow control function
Format
AT+IFC=<n1>,<n2><CR>
AT+IFC=?<CR>
AT+IFC?<CR>
Parameter
<n1>: TX flow control
0: None, Transmit data flow control disabled.
2: Hardware, Use RTS (Request To Send) /CTS (Clear to Send) signal
<n2>: RX flow control
0: None, Receive data flow control disabled.
2: Hardware, Use CTS (Clear To Send) signal (default)
Return Value
See the Example.
AT+IFC=2,2
OK
Enable the hardware flow control.
AT+IFC=0,0
OK
Disable the flow control function.
AT+IFC=?
+IFC: (0,2),(0,2)
OK
Query the valid parameter value
ranges.
AT+IFC?
+IFC: 0, 0
OK
Query the current status of flow
control.
Remarks
The setting of this command will not be saved after the module is powered
off.
This command is applicable to E9C33425 and later versions.
The flow control function is disabled by default.