Cinterion
®
ENS22-E AT Command Set
3.7 AT+IPR
ENS22-E_ATC_V01.000
19/02/11
Page 56 of 189
3.7
AT+IPR Bit Rate
allows to query and set the bit rate of the
Cinterion
®
ENS22-E's asynchronous serial interface (UART).
The test command returns the values of supported fixed bit rates.
The read command returns the current bit rate of the interface.
The write command determines the bit rate to be used for the interface.
It is not recommended to set bit rates lower than 9600 bps in order to avoid timing problems (see Section
Communication between Customer Application and
for details about timing).
It is highly recommended to use
as a standalone AT command, i.e. better do not combine with
other commands on the same AT command line.
will be preserved after firmware download (i.e. a firmware update does not
restore the factory setting), or in the event of power failure.
Syntax
Parameter Description
Bit rate per second (bps)
1200
2400
4800
9600
19200
38400
57600
115200
(D)
230400
Test Command
AT+IPR=?
Response(s)
+IPR:
( ) , (list of supported selectable
s)
OK
Read Command
AT+IPR?
Response(s)
+IPR:
OK
Write Command
AT+IPR=
Response(s)
OK
ERROR
+CME ERROR:
<err>
PIN Last
Reference(s)
-
-
V.250
<rate>
(num)(&V)(NV)