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HC15 AT Command Set

12. SIM related Commands

HC15_ATC_V01.001 Page 192 of 234 2/16/07

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12. SIM related Commands

The AT commands described in this chapter are related to the Subscriber Identity Module (SIM) connected to

HC15.

Note:

If using data from the SIM please bear in mind that the content of all Elementary Files is subject to change at any

moment!

This is because the network can change the SIM's data in the background via the SIM Application Toolkit (SAT)

procedure "Data download to SIM". For a detailed description please refer to GSM 11.14, [15].

12.1 AT+CRSM Restricted SIM Access

AT+CRSM offers easy access of the Elementary Files on the SIM. Access to the SIM database is restricted to the

commands which are listed at <command>.

All parameters of AT+CRSM are used as specified by GSM 11.11 [12]. HC15 handles internally all required SIM

interface locking and file selection routines.

As response to the command, the HC15 sends the actual SIM information parameters and response data. Error

result code "+CME ERROR" may be returned if the command cannot be passed to the SIM, e.g. if the SIM is not

inserted. However, failure in the execution of the command in the SIM is reported in <sw1> and <sw2> param-

eters.

Please beware of possible changes to Elementary Files by the network at any time, refer Chapter 12., SIM

related Commands.

Syntax

Parameter Description

SIM command number.

176 READ BINARY

178 READ RECORD

192 GET RESPONSE

214 UPDATE BINARY

Test Command

AT+CRSM=?

Response(s)

Write Command

AT+CRSM=<command>[, <fileID>[, <P1>, <P2>, <P3>[, <data>]]]

Response(s)

+CRSM: <sw1>,<sw2>[,<response>]

ERROR

+CME ERROR: <err>

Reference(s) PIN USB0-MDM USB0-APP Last

3GPP TS 27.007 - + + -

(num)

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