MC55 AT Command Set
4.7 AT+IPR s
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MC55_ATC_V01.05 Page 96 of 469 2/10/04
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4.7 AT+IPR Set fixed local rate
The command AT+IPR can be used to set or query the DTE-DCE interface bitrate.
Syntax
Command Description
The test command returns the values of the supported automatically detectable bitrates and the va lues of the
supported fixed-bitrates.
The read command returns the current bitrate of the interface.
The write command specifies the bitrate to be used for the interface. When you set a fixed-rate, make sure that
both DTE (TE) and DCE (TA) are configured to the same rate. When you select autobaudi ng, the DCE will auto-
matically recognize the bitrate currently used by the DTE.
A selected bitrate takes effect following the issue of any result code associated with this command (e.g. OK).
The setting is stored in the non-volatile memory and will be used whenever the engine is powered up again. How-
ever, in case of autobaud mode (AT+IPR=0) the detected DCE bitrate will not saved and, therefo re, will resyn-
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
PIN ASC0 ASC1 MUX1 MUX2 MUX3
! % § § § §
Reference(s)
V.25ter