MC75 AT Command Set

MC75 AT Command Set
4.9 AT+IPR
s
4.9 AT+IPR Set fixed local rate
The command AT+IPR can be used to set or query the TE-TA interface bit rate.
Syntax
Test Command
AT+IPR=?
Response(s)
+IPR: (list of supported auto-detectable s) , (list of supported fixed-only s)
OK
Read Command
AT+IPR?
Response(s)
+IPR:
OK
Write Command
AT+IPR=
Response(s)
OK
ERROR
+CME ERROR
Reference(s) PIN ASC0 ASC1 USB MUX1 MUX2 MUX3 Charge Last
V.250 ! % § ! § § § ! % !
Command Description
The test command returns the values of the supported automatically detectable bit rates and the values of the
supported fixed bit rates.
The read command returns the current bit rate of the interface.
The write command specifies the bit rate to be used for the interface. When you set a fixed-rate, make sure that
both TE (DTE) and TA (DCE) are configured to the same rate. When you select autobauding, the TA will automatically
recognize the bit rate currently used by the TE.
The setting is stored in the non-volatile memory and will be used whenever the engine is powered up again. However,
in case of autobaud mode (AT+IPR=0) the detected TA bit rate will not be saved and, therefore, needs to
be resynchronized after restarting the GSM engine (see Section 4.9.1, Autobauding).
Parameter Description
(num)(&V)
bit rate per second (bps)
0 (D) Activates autobauding. Not supported on ASC1. See Section 4.9.1, Autobauding
for further details.
300
600
1200
2400
4800
9600
MC75_ATC_V01.001 Page 94 of 475 6/2/05
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