7-手机模块的数据交互AT+CRSM

最新推荐文章于 2023-08-08 21:10:45 发布

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最新推荐文章于 2023-08-08 21:10:45 发布

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分类专栏： Modem&Module

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本文详细解析了Android设备如何通过RIL接口与SIM卡进行通信，介绍了特定AT指令如AT+CRSM的功能及其在读取SIM卡信息如ICCID、IMSI的作用。同时，提到了Osmocom项目在开源移动通信领域的重要性。

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没有听说Android与SIM卡直接通信的，只知道SIM通过Modem于Android通信，这样的话就得看看RIL了。Android可以通过RIL接口访问SIM卡，貌似也是唯一的

AT+CRSM

AT+CRSM=[,[,,,[,[,]]]]

may be

176 READ BINARY (B0)
178 READ RECORD (B2)
192 GET RESPONSE (C0)
214 UPDATE BINARY (D6)
220 UPDATE RECORD (DC)
242 STATUS (F2)

may be

12258 meaning ICCID file (2FE2)
28471 meaning ACMmax file (6F37)
28423 meaning IMSI file (6F07)
28473 meaning ACM file (6F39)
28481 meaning PUKT file (6F41)
28482 meaning SMS file (6F42)

正常的ICCID数据交互

=>00 A4 08 04 02 
<=A4
=>2F E2
<=61 19
=>00 C0 00 00 19
<=62178202412183022FE28A01058B032F06018002000A880110
=>00 B0 00 00 0A
<=98 68 60 71 80 00 53 39 60 52

AT+CRSM=164,12258,0,0,2
AT+CRSM=192,12258,0,0,27

AT+CRSM=164,28423,0,0,2
AT+CRSM=192,28423,0,0,27

AT+CSIM=192,12258,0,0,25
CRSM的ICCID交互

AT+CRSM=192,12258,0,0,25
+CRSM: 144,0,"62178202412183022FE28A01058B032F06048002000A880110"

OK

AT+CRSM=176,12258,0,0,10
+CRSM: 144,0,"98686071800053396052"

OK

176：B0
12258：2F E2
144,0：90 00

正常的IMSI数据交互

=>00 A4 08 04 04
<=A4
=>7F 20 6F 07
<=61 18
=>00 C0 00 00 18
<=62168202412183026F078A01058B032F0604800200098800
=>00 B0 00 00 09
<=08 49 06 60 53 89 10 92 26

CRSM的IMSI交互

AT+CRSM=176,28423,0,0,9
+CRSM: 144,0,"084906605389109226"

OK

176：B0
28423：6F 07
144,0：90 00

Osmocom项目是一个关于开源移动通信的总体项目,这包括实现各种移动通信标准的软件和工具，包括GSM，DECT，TETRA等。
https://osmocom.org/projects/

java card:

https://osmocom.org/projects/cellular-infrastructure/wiki/Shadysimpy
git clone http://git.osmocom.org/sim/sim-tools/
git clone http://git.osmocom.org/sim/hello-stk/
git clone https://github.com/lizhiwei/sim-tools.git

py card:

https://pyscard.sourceforge.io/
http://osmocom.org/projects/osmo-sim-auth/wiki

git clone https://git.osmocom.org/osmo-sim-auth
git clone https://git.osmocom.org/pysim