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2013-01-10-WikiStart » History » Version 84

nion, 02/19/2016 10:49 PM
Name changed from WikiStart to 2013-01-10-WikiStart

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{{>toc}}
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h1. 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 [[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 [[PreliminaryRequirements]] and then [[SoftwareGettingStarted]]
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h2. 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 [[HardwareCalypso]]/[[Iota]]/[[Rita]] 
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GSM baseband chipset.  The main target is the [[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 [[ProjectRationale]]
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* [[SoftwareAreasOfWork]] -- What needs to be done and who wants to do it
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* Information about the [[TypicalCalypsoModemDesign]]
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** [[HardwareCalypso]] -- The HERCROM digital baseband chip (DSP+ARM7)
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*** [[HardwareCalypsoDSP]] -- The DSP inside the Calypso DBB
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** [[Iota]] -- The TWL3025 analog baseband chip (ADC/DAC)
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** [[Rita]] -- The TRF6151C GSM transceiver (VCO, up/down-conversion)
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* Information about the [[SciphoneDreamG2]], a [[MT6235]] based phone (not supported!!)
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* Old/obsolete plan/spec of the [[GsmDevelBoard]] (note: This project is on hold right now!
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* Description of our own GSM Stack
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** [[L1A_L23_Interface]] -- How the Layer1 interfaces with Layer2 and Layer3 of the stack
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* Notes on the [[TSM30Layer1|TSM30 Layer1]] as it can be found in the TSM30 source
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* [[Glossary]] -- The weird terms used in the phone baseband world
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* [[LegalAspects]] -- Important legal aspects of this project
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* [[CommunityPeople]] -- The people behind the project
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* [[PressCoverage]] -- What the press is writing about us
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h2. Mailing List/IRC Chat
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We offer [[CommunityMailing_lists|Mailing Lists] and hang out on [wikiCommunityIRC IRC]].
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h2. 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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* [[SoftwareGettingStarted]] -- Getting Started with the Software for the target and host.
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* [[SoftwareOverview]] -- Overview how all the parts below fit together
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h3. Host programs (running on the PC)
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h4. General Purpose
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* [[osmocon]] -- A tool for Compal phones; to load code into RAM and execute it
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* [[mobile]] -- An application implementing a regular GSM mobile phone (and more)
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* [[WiresharkIntegration]] -- How to use [[OsmocomBB]] with wireshark protocol analyzer
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* [[libosmocore]] -- A library with utility functions
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h4. Advanced / special purpose tools
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* [[osmoload]] -- A tool for flashing and examining phones
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* [[calypso_pll]] -- A tool to calculate Calypso DPLL multiplier+divider
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* [[rita_pll]] -- A tool to calculate the Rita PLL multiplier/divider
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* [[layer23]] -- An implementation of GSM Layer2 and upwards.
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h3. Target programs (running on the phone baseband chip)
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* 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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** [[layer1bin]] -- The actual Layer1 software as it is to be used with [[layer23]]
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** [[loaderbin]] -- Our flash loader, dumper and second stage bootloader
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** [[compal_dsp_dumpbin]] -- A program to dump the ROM of the DSP inside the [[HardwareCalypso]]
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** [[rssibin]] -- Receive signal strength monitor with spectrum display
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h2. Supported Phone hardware
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Please see [[HardwarePhones]] for a list of supported phones.
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h3. Accessories
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You will need a [[HardwareSerialCable]] to connect the phone to a PC
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h2. Random bits and pieces
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* SIM related
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** [[RebelSIM]] How the Rebel SIM card cand be used as SIM proxy
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** [[RebelSIM_Scanner]] to scan/trace communication between SIM and phone (rubbish)
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** [[SIMtrace]] -- our custom hardware / firmware / software to get SIM-ME traces into wireshark
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** [[SIMReader]] How to connect to network using provider SIM
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** [[softSIM]] How to do software SIM
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* a collection of phone [[TerminalProfile|Terminal Profiles]]
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* [[Sniffing|Notes on sniffing]]
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* [[dct3-gsmtap]] A tool to obtain GSMTAP messages for SIM and GSM from Nokia DCT3 (eg, 3310) phones
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* [[HardwareFilterReplacement]] How to replace filters on Motorola phones
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* [[PotentialCalypsoTargets]] Potential phone hardware to use with osmocom-bb
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h2. References ==
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 Related projects ===
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* [[nuttx-bb]] -- Port of nuttx on the osmocom-bb comaptible phones.
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* "airprobe":https://svn.berlin.ccc.de/projects/airprobe/ -- Free Software GSM protocol analyzer 
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* "Other Osmocom Projects":http://osmocom.org/ -- Osmocom Projects
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* "OpenBTS":http://openbts.sourceforge.net/ -- Free Software Um-to-SIP gateway
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h3. Recommended reading
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* "-- Introduction to contemporary GSM cellphone hardware
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* [http://www2.informatik.hu-berlin.de/~goeller/":http://laforge.gnumonks.org/papers/gsm_phone-anatomy-latest.pdf] -- Homepage of Dr.-Ing. Joachim Goeller, lots of GSM tutorials
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* "-- 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":http://sourceforge.net/projects/plabs/]
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* "Article covering [[OsmocomBB]] at h-online, from July 2012":http://www.h-online.com/open/features/How-free-is-my-phone-1634071.html
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For a complete list of local wiki pages, see [[TitleIndex]].
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