baseband-devel

baseband-devel@lists.osmocom.org

2 participants
2003 discussions

Working on the documentation...
by Holger Freyther 20 Dec '10

20 Dec '10

Hi all, I have started a GettingStarted[1] page to cover the topics of getting the code, getting an ARM toolchain and pointing to the osmocon and layer23 pages for the details. I was also going through the search to update the names of the firmware binaries. The CalypsoRomloader[2] page deserves an update as well. It is referring to the GTA0X but then tries to flash a nonexistent E88 binary. I am not sure what to turn this page into. Do we also have a list of Milestones we want to accomplish (besides merging the sending code to master)? Do we have junior tasks for people that would like to get started on target and host firmware? regards z. [1] http://bb.osmocom.org/trac/wiki/GettingStarted [2] http://bb.osmocom.org/trac/wiki/CalypsoRomloader

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SIMtrace hardware
by ml＠mail.tsaitgaist.info 18 Dec '10

18 Dec '10

Hi, I made a lot of changes to the SIMtrace hardware schema. Here my v0.5 : https://gsm.tsaitgaist.info/SIMtrace/v0.5/SIMtrace.ps Some important point that are unclear, where I would like to have some comments : - I do not use USB_DP_PUP which I found in several at91sam7s design (and openPCD). I don't know if it will be useful or required. - I use npn transistor as switches (2 for I/O because bidirectional). Maybe (N/P/C)MOS is a better solution. I already bought most of the parts and would like to start drawing the PCB. Please tell me if you find some errors or have any advices. kevin

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got Simtrace to compile
by ste7an 17 Dec '10

17 Dec '10

I ordered a SAM7-P64 board for running Simtrace (received board today, but still waiting for the REBELSIm connectors). When compiling the code (using Gnuarm3.4.3) I got two errors: 1) the --g($DEBUGF) option was not understood; omitting this, made the Makefile (for dfu and main) working 2) in /lib/vsprintf.c I had to add #include <limits.h> in order to prevent errors related to MAX_INT etc. Are there any ideas for making a man-in-the-middle SIM device? One master interface to a real SIM, another slave interface providing a SIM interface towards a phone with the possibility to filter certain APDU's or to add files or commands on top of the real SIM. This would need an additional SIM master interface (to send and receive APDU's to the real SIM) on top of what already is in SIMtrace and the slave interface should be capable of sending messaged back to the real SIM master. I will look into it, first starting with implementing a simple SIM card master on the other UART.

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sciphone g2 connector
by Alexander Huemer 17 Dec '10

17 Dec '10

hi, i want to make a cable for the sciphone g2 that provides serial communication and charging with one connector. unfortunately the pictures at [1] aren't clear enough for me. i don't want to kill my phone. actually i count 15 pins in the picture, where mine has only 12. that's weird. i guess that 2 are just for aligning the case, but that still makes 13 vs. 12. i tried to ascii draw the connector from the back (soldering) side. the rounded half of the connector on the upper side. The pins i found described elsewhere on the internet are already marked. -------------------------- ( ) ( ) | ( ) | +-------------------------+ | | | | | | | | | / | | | | | | | | / +-------------------------+/ ^ ^ ^ ^ | | | | | | | +--- GND | | +----- GND | +----------- RX (PC -> Phone) +--------------- TX (Phone -> PC) could someone please mark the pins that have to be connected for charging ? i guess one of the two GND pins is involved. kind regards and thanks for your time -Alex [1] http://en.qi-hardware.com/wiki/Sciphone_Dream_G2

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Price Cheap of USRP for openbts and GSM
by 麦田守望 15 Dec '10

15 Dec '10

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MTK chip for GSM USRP
by 麦田守望 14 Dec '10

14 Dec '10

Hello everybody I want to develop USB Interface USRP Use MTK 6218 chip, But no Firmware Source Code 6218 is ARM Core 'USE it is a GSM Way of USRP .Friends if you Have to know Please contact me

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Qualcomm documentation
by Andreas Galauner 13 Dec '10

13 Dec '10

Hello everybody, last year I stumbled upon a PDF which describes all registers inside the Qualcomm MSM7200 series chipset. I now got a new mobile phone and remembered about that document because wanted to play a bit with my old one (HTC Magic/Sapphire/G2/Ion). I googled a few hours now and found several documents from Qualcomm, but I just found a whole svn repository full of Documentation [1]. Those Qualcomm chipsets are particularly interesting, because, due to Android, there already is a Linux kernel for the ARM11 core available. The missing part is a free implementation of the ARM9 baseband. My next goal is, as soon as I managed to solder cables to the JTAG pins covered in epoxy, to get own code running on the ARM9. I don't know how hard this will get, because this chipset has several security features like signature checking of code, fusebits for security configuration etc., but I will give it a try. JTAG definitely is still activated, because several people developed a method to unbrick their phones in case they have a bad ARM11 bootloader. And even if there is no chance to get own code running right away, I'm pretty certain that there somewhere is a buffer overflow which is exploitable. Either inside the baseband itself or in the serial console command parser of the early bootloaders provided by the OEM (OEMSBL). Time will tell. I hope I've got something to show you at the 27C3. My problem is that I don't have enough experience and knowledge about GSM yet to estimate if all this documentation is sufficient to implement a real baseband software on this chipset. If it's not, I think it's pointless to invest several days/nights of work to get own code running. Maybe somebody of you can have a quick look over the repository and the documents? Thanks, Andy [1]: http://code.google.com/p/ptwcdma/source/browse/

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Osmocom SIMtrace
by Simon Barnett 13 Dec '10

13 Dec '10

Hi All, I'm not 100% sure this is the right place to post this really, maybe someone can point me in the right direction if I'm in the wrong place. I'm trying to build the Osmocom SIMtrace firmware, but so far I'm not having much luck When I try to make it I get the following output: - make -f Makefile.dfu BOARD=OLIMEX -------- begin (mode: RUN_FROM_ROM) -------- arm-elf-gcc (GCC) 4.0.2 Copyright © 2005 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. scripts/mkcompile_h > include/compile.h svn: '.' is not a working copy svn: warning: '.' is not a working copy make: *** No rule to make target `src/simtrace/usb_strings_dfu.txt', needed by `src/simtrace/usb_strings_dfu.h'. Stop. Has anyone got any ideas how I might be able to fix this? Thanks, Simon

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Sciphone's Versions and European Shops
by luca bongiorni 12 Dec '10

12 Dec '10

Hi mates, i was thinking to start to work also on Sciphone and starting to learn as much as i can and contribute to the community (even if actually i'm a noob of phone firmwares, i worked only on MIPS router firmwares ). Have you some usefull books/wiki/etc to start on? These are the 3 versions identified of Sciphone: HY27XS08121M - 512Mb (64MB) NAND + 32MB RAM HY27XA081G1M - 1Gb (128MB) NAND + 32MB RAM TC58NVG0S3AFT - 1Gb (128MB) NAND + 64MB RAM How i could ask to sellers for the best version? (TC58NVG0S3AFT - 1Gb (128MB) NAND + 64MB RAM) Do you know an european shop where i can find it? Thankyou for attention folks Regards Luca

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[ADM] Please try to avoid merges in the git tree
by Harald Welte 11 Dec '10

11 Dec '10

Hi all, this is just a general request to everyone with git commit access on the OpenBSC / Osmocom repositories. I would appreciate to restrict the use of 'git merge' to the absolute minimum neccessarry, as it makes the commitlog and timeline much harder to understand. If you're working on some private branch on a particular feature, please rebase that private branch on current master before pushing the changes. Thanks! -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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