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At+ipr set fixed local rate, Autobauding, 45 at+ipr set fixed local rate – Siemens MC35 User Manual

Page 38

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AT Command Set

MC35_ATC_01_V03.02

Page 38 of 228

13.03.2002

2.45 AT+IPR Set fixed local rate

Test command

AT+IPR=?

Response

+IPR:

(list of supported auto-detectable s), (list of supported fixed-only

s

) OK

Parameter

See write command

Read command

AT+IPR?

Response

+IPR: OK

Parameter

See write command

Write command

AT+IPR=

This command specifies the DTE-DCE bitrate. When you set a fix rate, make sure
that both DTE (TE) and DCE (= TA) are configured to the same rate. When you
select autobauding the DCE will automatically 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. However, in case of autobaud mode (+IPR=0) the
detected DCE bitrate will not be saved and, therefore, needs to be be re-
synchronized after restarting the GSM engine (see Chapter 2.45.1).

Response

OK or if error is related to ME functionality: ERROR / +CME ERROR:

Parameter

bit rate per second

0 (Autobauding, see Chapter 2.45.1)
300
600
1200
2400
4800
9600
14400
19200
28800
38400
57600
115200

Reference

V.25ter

Note

Your current setting of AT+IPR will be preserved
• when you download new firmware (i.e. a firmware update does not restore the

factory setting);

• in the event of power failure.

Generally, AT+IPR=x should be used as a standalone command. If nevertheless
combinations with other commands on the same line cannot be avoided, there are
several constraints to be considered:
• Avoid combinations with the AT commands listed in Chapter 1.5.2.