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Cellular forums Home > Archive > Cellular GSM Technology > February 2008 > SIM READER problem
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SIM READER problem
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| designer 2008-02-07, 7:33 am |
| I have written a sim reader in Verilog. And testing it on FPGA Board
(SIM CARD is inserted on the slot provided on the BOARD).
I have got the ATR,PPS Response. Then I am sending Command(Select File
Command) Header .To which i am not getting a acknowledge.
I don't know what is the problem. Any ideas?
The ATR sequence i got is: 3B 17 11 1A 01 01 10 01 41 37.
Then the PPS Request/Response happened correctly : FF 10 11 FE
Then I sent a Select File (5 bytes) Command: A4(CLA) A0(INS) 00(P1)
00(P2) 02(P3/Length)
After this we didn't get a Acknowledge byte from the SIM. We didn't
get any byte at all.
Please help on this
Thanks,
Vittal
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| designer 2008-02-07, 7:33 am |
| Sorry the CLA and INS bytes were interchanged.
CLA sent is A0 and INS sent is A4
designer wrote:
> I have written a sim reader in Verilog. And testing it on FPGA Board
> (SIM CARD is inserted on the slot provided on the BOARD).
> I have got the ATR,PPS Response. Then I am sending Command(Select File
> Command) Header .To which i am not getting a acknowledge.
> I don't know what is the problem. Any ideas?
>
> The ATR sequence i got is: 3B 17 11 1A 01 01 10 01 41 37.
> Then the PPS Request/Response happened correctly : FF 10 11 FE
> Then I sent a Select File (5 bytes) Command: A4(CLA) A0(INS) 00(P1)
> 00(P2) 02(P3/Length)
> After this we didn't get a Acknowledge byte from the SIM. We didn't
> get any byte at all.
>
> Please help on this
> Thanks,
> Vittal
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