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Cinterion
®
EHS6 AT Command Set
4. Serial Interface Control Commands
EHS6_ATC_V03.001
15/12/3
Confidential / Released
Page 102 of 513
4.
Serial Interface Control Commands
The AT Commands described in this chapter allow the external application to determine various settings related
to the EHS6's serial interface.
4.1
AT\Q Flow Control
allows to configure flow control on the asynchronous serial interfaces ASC0 and ASC1 (UARTs). It is
strongly recommended to always use RTS/CTS hardware flow control. In particular, when using SLEEP mode
(see
) or Multiplex mode (see
), ensure that both ME and TE have RTS/CTS hardware flow
control enabled.
The
setting is always common for all interfaces and can be changed, for compatibility reasons, on each
interface, but is only applicable to the ASC0 and ASC1 interfaces.
settings have no effect on the USB ports
because the USB protocol integrates a flow control mechanism of its own.
Syntax
Parameter Description
[0]
Disable flow control
1
XON/XOFF software flow control
Value 1 can be set on ASC0 and ASC1, but XON/XOFF software flow control
takes effect only on ASC0. On ASC1, RTS/CTS hardware flow control remains
effective even though value 1 has been selected.
2
This value is not supported and will be mapped to RTS/CTS hardware flow
control
3
(&F)(D)
RTS/CTS hardware flow control
Note
• When using XON/XOFF flow control (
1) in online mode,
should not be used while the data trans-
mission is paused with XOFF. Before entering the command mode with
the paused transmission should
be resumed using the XON character.
Exec Command
AT\Q
]
Response(s)
OK
PIN
Last
-
+
-
<n>
(num)(&V)(&W)