# HG changeset patch # User Mychaela Falconia # Date 1695279709 0 # Node ID f8c27c2bde0ec75c97495e8db56006af352965b0 # Parent 7e87b03dd57d3bdd318068960c7cb7d04c3d554d README: project rename diff -r 7e87b03dd57d -r f8c27c2bde0e README --- a/README Thu Sep 21 06:47:03 2023 +0000 +++ b/README Thu Sep 21 07:01:49 2023 +0000 @@ -1,11 +1,17 @@ -Welcome to FreeCalypso SIMtrace3 -================================ +Welcome to FreeCalypso SIMsniff +=============================== -FC SIMtrace3 (aka SIMtrace-ice) is an alternative implementation of Osmocom -SIMtrace principal idea, using an iCE40 FPGA instead of AT91SAMx MCU as the ISO -7816-3 sniffing receiver. Aside from this change from an MCU to an FPGA and -thus from firmware to gateware, the other principal difference is that SIMtrace3 -is electrically clean and proper: +FreeCalypso SIMsniff is an alternative project to Osmocom SIMtrace, created in +response to technical limitations of the latter. Both tools seek to solve the +same problem (trace or sniff all communication between a phone, modem or other +interface device and a SIM card) and use some passive hardware components in +common (the FPC adapter cable that goes into the phone's SIM socket), but use +different active components: Osmocom SIMtrace uses an AT91SAMx MCU as the ISO +7816-3 sniffing receiver, whereas FC SIMsniff uses a voltage translating buffer +followed by an iCE40 FPGA instead. + +The principal practical difference between the two tools is that FC SIMsniff is +electrically clean and proper: * The sniffing apparatus makes a strictly Hi-Z connection to the SIM bus being sniffed; @@ -17,7 +23,7 @@ * The sniffing apparatus supports all 3 voltage classes that can be put out by the ME or other interface device: 1.8V, 3V and 5V are all good. -The hardware setup of SIMtrace3 consists of: +The hardware setup of FC SIMsniff consists of: * The same SIMtrace FPC cables (going from a SIM socket to the 6-pin FPC connector) that were originally developed for SIMtrace1/2 and are sold by