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2013-01-10-WikiStart » History » Version 66

laforge, 02/19/2016 10:48 PM
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[[PageOutline]]
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= Welcome to the OsmocomBB project =
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OsmocomBB is an Free Software / Open Source GSM Baseband software implementation.
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It intends to completely replace the need for a proprietary GSM baseband software, such as
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 * drivers for the GSM analog and digital baseband (integrated and external) peripherals
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 * the GSM phone-side protocol stack, from layer 1 up to layer 3
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In short: By using [wiki:OsmocomBB] on a compatible phone, you are able
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to make and receive phone calls, send and receive SMS, etc. based on Free Software only.
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Over the past 12 months, we've been making very good progress. Most of the hardware drivers have been
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written, and a relatively complete layer1, layer2 and layer3 exist.
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No work has yet been done on any sort of UI on the phone.  The only user interface is a telnet-based
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command line.
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To get started, checkout the [wiki:PreliminaryRequirements] and then [wiki:GettingStarted]
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== Directory ==
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[[BlogList(format=float,recent=5,max_size=350)]]
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This is the project page about our experiments (so far) only with phones based on the Ti [wiki:Calypso]/[wiki:Iota]/[wiki:Rita] 
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GSM baseband chipset.  The main target is the [wiki:MotorolaC123]. For more supported phones, check below.
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We originally intended to build an inexpensive GSM experimentation board built with/around that chipset, but right now
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are pursuing a slightly alternative course by using cheap off-the-shelf feature phones and write custom software for it.
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 * The [wiki:ProjectRationale]
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 * The big [wiki:MasterPlan]
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  * [wiki:AreasOfWork] -- What needs to be done and who wants to do it
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 * Information about the [wiki:TypicalCalypsoModemDesign]
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  * [wiki:Calypso] -- The HERCROM digital baseband chip (DSP+ARM7)
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   * [wiki:CalypsoDSP] -- The DSP inside the Calypso DBB
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  * [wiki:Iota] -- The TWL3025 analog baseband chip (ADC/DAC)
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  * [wiki:Rita] -- The TRF6151C GSM transceiver (VCO, up/down-conversion)
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 * Information about the [wiki:SciphoneDreamG2], a [wiki:MT6235] based phone (not supported!!)
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 * Old/obsolete plan/spec of the [wiki:GsmDevelBoard] (note: This project is on hold right now!
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 * Description of our own GSM Stack
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  * [wiki:L1A_L23_Interface] -- How the Layer1 interfaces with Layer2 and Layer3 of the stack
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 * Notes on the [wiki:TSM30Layer1 TSM30 Layer1] as it can be found in the TSM30 source
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 * [wiki:Glossary] -- The weird terms used in the phone baseband world
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 * [wiki:LegalAspects] -- Important legal aspects of this project
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 * [wiki:People] -- The people behind the project
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 * [wiki:PressCoverage] -- What the press is writing about us
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== Mailing List ==
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The development discussions regarding this project happen on the ''baseband-devel@lists.osmocom.org'' mailing list.
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General announcement of major steps and releases of the project are available on the ''osmocom-announce'' list.
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You can subscribe to any of those mailing lists at http://lists.osmocom.org/mailman/listinfo
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== IRC (Internet Relay Chat) ==
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We have an IRC channel where some developers and users hang out. You can find it at: irc.freenode.net/#osmocom
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== Software ==
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Documentation about software developed by this project.
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OsmocomBB source code is kept in the git repository at '''git://git.osmocom.org/osmocom-bb.git''', which you can browse
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best from http://cgit.osmocom.org/
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 * [wiki:GettingStarted] -- Getting Started with the Software for the target and host.
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 * [wiki:SoftwareOverview] -- Overview how all the parts below fit together
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=== Host programs (running on the PC) ===
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==== General Purpose ====
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 * [wiki:osmocon] -- A tool for Compal phones; to load code into RAM and execute it
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 * [wiki:mobile] -- An application implementing a regular GSM mobile phone (and more)
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 * [wiki:WiresharkIntegration] -- How to use OsmocomBB with wireshark protocol analyzer
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 * [wiki:libosmocore] -- A library with utility functions
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==== Advanced / special purpose tools ====
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 * [wiki:osmoload] -- A tool for flashing and examining phones
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 * [wiki:calypso_pll] -- A tool to calculate Calypso DPLL multiplier+divider
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 * [wiki:rita_pll] -- A tool to calculate the Rita PLL multiplier/divider
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 * [wiki:layer23] -- An implementation of GSM Layer2 and upwards.
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=== Target programs (running on the phone baseband chip) ===
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 * [wiki:firmware] -- The current staging/testing code base for our own software on the Calypso. From it we build a number of apps:
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  * hello_world.bin -- An actual 'hello world' application for LCD and serial port
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  * [wiki:layer1.bin] -- The actual Layer1 software as it is to be used with [wiki:layer23]
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  * [wiki:loader.bin] -- Our flash loader, dumper and second stage bootloader
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  * [wiki:compal_dsp_dump.bin] -- A program to dump the ROM of the DSP inside the [wiki:Calypso]
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== Supported Phone hardware ==
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Information specific to certain Calypso based phones that we support
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 * Designed + Manufactured by Compal, OEM by Motorola
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  * [wiki:MotorolaC115]/C117 (E87)
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  * [wiki:MotorolaC123]/C121/C118 (E88) -- our primary target
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  * [wiki:MotorolaC140]/C139 (E86)
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  * [wiki:MotorolaC155] (E99) -- our secondary target
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  * [wiki:MotorolaV171] (E68/E69)
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  * [wiki:SonyEricssonJ100i]
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 * Designed by Pirelli/Foxconn, manufactured by Foxconn
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  * [wiki:PirelliDPL10 Pirelli DP-L10]
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 * Designed by Openmoko, manufactured by FIC
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  * Neo 1973 (GTA01)
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  * Neo Freerunner (GTA02)
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=== Accessories ===
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You will need a [wiki:CalypsoSerialCable] to connect the phone to a PC
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== Random bits and pieces ==
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 * SIM related
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  * [wiki:RebelSIM] How the Rebel SIM card cand be used as SIM proxy
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  * [wiki:RebelSIM_Scanner] to scan/trace communication between SIM and phone (rubbish)
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  * [wiki:SIMtrace] -- our custom hardware / firmware / software to get SIM-ME traces into wireshark
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  * [wiki:SIMReader] How to connect to network using provider SIM
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 * [wiki:Sniffing Notes on sniffing]
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== References ==
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=== Related projects ===
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 * [https://svn.berlin.ccc.de/projects/airprobe/ airprobe] -- Free Software GSM protocol analyzer 
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 * [http://openbsc.osmocom.org/ OpenBSC] -- Free Software BSC/MSC/HLR/SMSC
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 * [http://openbts.sourceforge.net/ OpenBTS] -- Free Software Um-to-SIP gateway
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 * [http://tetra.osmocom.org/ OsmocomTETRA] -- Free Software TETRA related code
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=== Recommended reading ===
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 * [http://laforge.gnumonks.org/papers/gsm_phone-anatomy-latest.pdf] -- Introduction to contemporary GSM cellphone hardware
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 * [http://www2.informatik.hu-berlin.de/~goeller/] -- Homepage of Dr.-Ing. Joachim Goeller, lots of GSM tutorials
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 * [http://sourceforge.net/projects/plabs/] -- Source code of the firmware of the Vitelcom TSM30 phone (dead link)
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 * [http://svn.gnumonks.org/trunk/presentation/2010/osmocombb-sstic2010/osmocombb-security.pdf OsmocomBB presentation at SSTIC 2010]
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For a complete list of local wiki pages, see TitleIndex.
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