Rhydo SIM 900 SIM 900 -TTL UART Spezifikationen PDF herunterladen (Seite 41)

SIM900 AT Commands Set

SIM900_ATC_V1.01 41 23.06.2010

Response

This parameter setting determines the serial interface character framing

format and parity received by TA from TE.

Write Command

AT+ICF=<forma

t>,[<parity>]

Parameters

<format> 1 8 data 0 parity 2 stop

2 8 data 1 parity 1 stop

3 8 data 0 parity 1 stop

4 7 data 0 parity 2 stop

5 7 data 1 parity 1 stop

6 7 data 0 parity 1 stop

<parity> 0 odd

1 even

3 space (0)

Reference

V.25ter

Note

z The Command is applied for Command state;

z In <format> parameter, “0 parity” means no parity;

z The <parity> field is ignored if the <format> field specifies no parity

and string “+ICF: <format>,255” will be response to AT+ICF?

Command.

2.2.40 AT+IFC TE-TA Local Flow Contro

AT+IFC TE-TA Local Flow Control

Response

+IFC: (list of supported <dce_by_dte>s), (list of supported

<dte_by_dce>s)

Test Command

AT+IFC=?

Parameters

See Write Command.

Response

+IFC: <dce_by_dte>,<dte_by_dce>

Read Command

AT+IFC?

Parameters

See Write Command.

Write Command

AT+IFC=<dce_b

y_dte>[,<dte_by

_dce>]

Response

This parameter setting determines the data flow control on the serial

interface for data mode.

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