Cinterion
®
EHS6 AT Command Set
4.7 AT+IPR
EHS6_ATC_V03.001 15/12/3
Confidential / Released
Page 109 of 513
4.7 AT+IPR Bit Rate
AT+IPR allows to query and set the bit rate of the EHS6's asynchronous serial interface (UART).
The test command returns the values of supported automatically detectable bit rates and the values of the sup-
ported fixed bit rates.
The read command returns the bit rate currently used on the interface.
The write command specifies the bit rate to be used for the interface. If using a fixed bit rate, make sure that both
EHS6 and TE are configured to the same rate.
In case of Autobaud mode (AT+IPR=0) the detected TE bit rate will not be saved and, therefore, needs to be
resynchronized after any restart of the ME (for details refer to Section 4.7.1, Autobauding).
It is not recommended to set bit rates lower than 9600 bps in order to avoid timing problems (see Section 1.6,
Communication between Customer Application and EHS6 for details about timing).
Syntax
Parameter Description
Bit rate per second (bps)
0 Autobauding See Section 4.7.1, Autobauding for further details.
1200
2400
4800
9600
19200
38400
57600
115200
(D)
Test Command
AT+IPR=?
Response(s)
+IPR: (list of supported auto-detectable <rate>s), (list of supported fixed-only <rate>s)
OK
Read Command
AT+IPR?
Response(s)
+IPR: <rate>
OK
Write Command
AT+IPR=<rate>
Response(s)
OK
ERROR
+CME ERROR: <err>
PIN Last
- + +
<rate>
(num)(&V)(NV)
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