HC25 AT Command Set - Portech.com.tw

HC25 AT Command Set
4. Serial Interface Control Commands s
4. Serial Interface Control Commands
The AT Commands described in this chapter allow the external application to determine various settings related
to the HC25's serial interface.
4.1 AT^SQPORT Query Port Type
AT^SQPORT enables the host application to query the type of virtual COM port it is connected to. Further details
on the different types of virtual HC25 interfaces can be found in Section 1.4, HC25 AT Command Interpreter.
Syntax
Test Command
AT^SQPORT=
Response(s)
OK
Read Command
AT^SQPORT
Response(s)
OK
Exec Command
AT^SQPORT
Response(s)
OK
Reference(s) PIN USB0-MDM USB0-APP Last
Siemens - + + -
Parameter Description
(str)
“Modem“
“Application“
The virtual COM port is defined for use as a modem, mainly intended for dialup
connections. Using AT commands is not recommended except for the dialing
command ATD.
The virtual COM port is defined as application interface. It is recommended that
this interface be used for controlling the HC25, e.g. for entering AT commands,
receiving URCs, or sending and receiving short messages. URCs are indicated
only on this interface, no matter which of the two interfaces was used to send
the AT commands for activating their presentation. For further detail on URCs
please refer to Section 1.8, Unsolicited Result Code Presentation.
HC25_ATC_V01.200 Page 63 of 290 7/25/07
Confidential / Released