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Tom Schouten tom at zwizwa.beHi List, This might be of interest to folks here. A couple of days ago I found out the Saleae Logichas an SDK that allows you to live stream raw sample data straight into a C++ application. Quite neat, as it can go to fairly high sample rates. Here is a proof of concept version of a live APDU protocol sniffer using the SL: https://github.com/zwizwa/sl-apdu Essentially it's just a UART state machine with some hardcoded ATR parsing (for the specific SIM card I have) which calls into apdu_split from git://git.osmocom.org/simtrace.git after the ATR handshake. I had a look at the ISO7816 parser in the SIMtrace firmware, but it's fairly tied to the hardware. With some refactoring it's probably easy to reuse. ( The sl-apdu repo has a first attempt to a dirty stub approach to run the original AT91 code. Probably not be the way to go.. ) Cheers Tom