baseband-devel August 2011

baseband-devel@lists.osmocom.org

31 participants
50 discussions

by Marcin Mielczarczyk

Hi All! That's true, I managed to run U-Boot on MT6235, but linux kernel is not fully functional yet (it's fresh stuff as I managed to ran it on Tuesday and then I was off to conference). For MT6235 development I chose Sciphone G2, which is pretty cheap. After some time I managed to download code to SRAM (just 64KB) using MTK's FlashTool. MTK FlashTool communicates over UART directly with MT6235 bootloader and sends its own chunk of code (about 58KB) which is executed in SRAM and communicates with FlashTool. I found on pudn.com some pack to customize code loaded by FlashTool, thanks to which I could download my own code to SRAM (without JTAG). The problem was that it had to be linked with some security libraries which occupied about 56KB and not much memory left for my own code. Then I decided to try find JTAG pins to get all control on MT6235. That took me sometime, but finally I succeeded. The other bigger issue was initializing DRAM controller to be able to download bigger code (linux kernel + uboot) to external RAM. In sciphone there is problem that all interesting chips are under metal shield which is pretty havily soldered. In this case I couldn't read what kind of RAM memory is mounted without destroying the board (I don't have such soldering machine which could unsolder so big metal shield). Thanks to JTAG I could attach to target and then dump DRAM controller registers from processor running MTK's software, but setting these values after processor start and configuration of PLL didn't work. I decided to disassemble bootloader which could show me how DRAM controller is initialized and how code fron NAND is loaded (to be able to flash U-Boot and kernel to NAND so MT6235 will start my code automatically and I will not have to use JTAG). Currently I have knowledge how internal MT6235 bootloader is loading code from memory during startup and I also extracted procedure of DRAM controller initialization. Thanks to that I'm able to run U-Boot from the very begining of processor startup. The problem is that I have just one piece of Sciphone G2 and I don't want to flash it yet to not break existing code in it. Thanks to running device I'm able to attach with JTAG and check how peripherals are configured (i.e. LCD, MMC, etc.). I have backup of flash, but I'm not 100% sure if I will flash it back, phone will startup. That's why I bought second piece of Sciphone G2 and should receive it today or on Tuesday (this Monday is holiday in Poland). In this case I'll flash U-Boot to NAND and try to make it working. Then we could load the rest of code from U-Boot (to RAM or NAND over serial). You can see how my setup looks on attached picture. The good thing about it is that the same bootloader is used in MT622x, so it should be fairly easy to do the same on phones based on that SoCs (but unfortuantely it's just ARM7). If it comes to code, of course I can share it on "git.osmocom.org". Currently it's just basic port of U-Boot and not much for linux kernel, but I'm working on this now so I'll push it when it'll be ready. Currently I'm working on driver for NAND memory for U-Boot, so we could flash linux kernel. When that will be ready I'll push the code. Then I'll switch to linux kernel and when it'll be functional I also push the code. At this stage you will not need to have JTAG and you could load the code over serial in U-Boot. If it comes to GSM I didn't work with it before. I actualy worked 6 months in L2/3 team for LTE (on RRC) but it's different story. That could be really outstanding thing if we could run first phone ever with whole code open (from BB up to APP). BR, Marcin

13 years, 5 months

calypso SIM driver on c139 (also: l1ctl SIM APDU)

by Gianni Tedesco

The SIM and the SIM reader in the phone and the mechanical contact between them are definitely working because the SIM can be accessed from the motorola firmware, from another phone and from a PC smartcard reader with no PIN or anything. However, under simtest firmware no data is received by the phone, even the ATR is zero bytes... Anybody had this problem? Also, is l1CTL SIM APDU command not implemented in the layer1 firmware? How are people making calls without a SIM? :P Gianni ----------------SIMTEST----8<----------------- Initializing driver: SIM: Registering interrupt handler for simcard-interface ====================== CALYPSO SIM REGISTER DUMP ===================== Reg_sim_cmd register (R/W) - FFFE:0000 |-REG_SIM_CMD = 0000 | |-REG_SIM_CMD_CMDCARDRST = 0 ==> SIM card reset sequence disabled. | |-REG_SIM_CMD_CMDIFRST = 0 | |-REG_SIM_CMD_CMDSTOP = 0 | |-REG_SIM_CMD_CMDSTART = 0 | |-REG_SIM_CMD_MODULE_CLK_EN = 0 ==> Clock of the module disabled. |-REG_SIM_STAT = 000b | |-REG_SIM_STAT_STATNOCARD = 1 ==> No card! | |-REG_SIM_STAT_STATTXPAR = 1 ==> Parity ok! | |-REG_SIM_STAT_STATFIFOFULL = 0 | |-REG_SIM_STAT_STATFIFOEMPTY = 1 ==> Fifo empty! |-REG_SIM_CONF1 = 000c | |-REG_SIM_CONF1_CONFCHKPAR = 0 ==> Parity check on reception disabled. | |-REG_SIM_CONF1_CONFCODCONV = 0 ==> Coding convention is direct (normal). | |-REG_SIM_CONF1_CONFTXRX = 1 ==> SIO line direction is in transmit mode. | |-REG_SIM_CONF1_CONFSCLKEN = 1 ==> SIM clock in normal mode. | |-REG_SIM_CONF1_reserved = 0 ==> ETU period is CONFETUPERIOD. | |-REG_SIM_CONF1_CONFSCLKDIV = 0 ==> SIM clock frequency is 13/4 Mhz. | |-REG_SIM_CONF1_CONFSCLKLEV = 0 ==> SIM clock idle level is low. | |-REG_SIM_CONF1_CONFETUPERIOD = 0 ==> ETU period is 372/8*1/Fsclk. | |-REG_SIM_CONF1_CONFBYPASS = 0 ==> Hardware timers and start and stop sequences are normal. | |-REG_SIM_CONF1_CONFSVCCLEV = 0 ==> SVCC Level is low (Only valid when CONFBYPASS = 1). | |-REG_SIM_CONF1_CONFSRSTLEV = 0 ==> SRST Level is low (Only valid when CONFBYPASS = 1). | |-REG_SIM_CONF1_CONFTRIG = 0x0 (FIFO trigger level) | |-REG_SIM_CONF1_CONFSIOLOW = 0 |-REG_SIM_CONF2 = 0940 | |-REG_SIM_CONF2_CONFTFSIM = 0x0 (time delay for filtering of SIM_CD) | |-REG_SIM_CONF2_CONFTDSIM = 0x4 (time delay for contact activation/deactivation) | |-REG_SIM_CONF2_CONFWAITI = 0x9 (CONFWAITI overflow wait time between two received chars) |-REG_SIM_IT = 0000 | |-REG_SIM_IT_SIM_NATR = 0 ==> On read access to REG_SIM_IT. | |-REG_SIM_IT_SIM_WT = 0 ==> On read access to REG_SIM_IT. | |-REG_SIM_IT_SIM_OV = 0 ==> On read access to REG_SIM_IT. | |-REG_SIM_IT_SIM_TX = 0 ==> On write access to REG_SIM_DTX or on switching | | from transmit to receive mode (CONFTXRX bit) | |-REG_SIM_IT_SIM_RX = 0 ==> On read access to REG_SIM_DRX. |-REG_SIM_DRX = 0100 | |-REG_SIM_DRX_SIM_DRX = 0x0 (next data byte in FIFO available for reading) | |-REG_SIM_DRX_STATRXPAR = 1 ==> Parity Ok. |-REG_SIM_DTX = 00 (next data byte to be transmitted) |-REG_SIM_MASKIT = 003f | |-REG_SIM_MASKIT_MASK_SIM_NATR = 1 ==> No-answer-to-reset interrupt is masked. | |-REG_SIM_MASKIT_MASK_SIM_WT = 1 ==> Character wait-time overflow interrupt is masked. | |-REG_SIM_MASKIT_MASK_SIM_OV = 1 ==> Receive overflow interrupt is masked. | |-REG_SIM_MASKIT_MASK_SIM_TX = 1 ==> Waiting characters to be transmit interrupt is masked. | |-REG_SIM_MASKIT_MASK_SIM_RX = 1 ==> Waiting characters to be read interrupt is masked. | |-REG_SIM_MASKIT_MASK_SIM_CD = 1 ==> SIM card insertion/extraction interrupt is masked. |-REG_SIM_IT_CD = fffe0010 |-REG_SIM_IT_CD_IT_CD = 0 ==> SIM card insertion/extraction interrupt is unmasked. Power up simcard: * Power enabled! * Clock enabled! * Reset released! SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Character underflow! (0 bytes) Reset simcard: * Reset pulled down! * Reset released! SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Character underflow! (0 bytes) SIM-T0: Transceiving APDU-Header: (a0 a4 00 00 02) SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-T0: Case 2: No input / Output of known length (See also GSM 11.11 Page 34) SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Character underflow! SIM-T0: T0 Protocol error: Missing ACK byte -- aborting! SIM-T0: Transceiving APDU-Header: (a0 c0 00 00 0f) SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-T0: Case 4: Input / No output (See also GSM 11.11 Page 34) SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Character underflow! SIM-T0: T0 Protocol error: Incorrect or missing answer -- aborting! e0 73 d7 b9 ae ea bf 7e f7 3b 7f 6f 32 fe 25 (15 bytes) Test Phase 1: Testing bare sim commands... * Testing SELECT: Selecting MF SIM-T0: Transceiving APDU-Header: (a0 a4 00 00 02) SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-T0: Case 2: No input / Output of known length (See also GSM 11.11 Page 34) SIM-ISR: Interrupt caught: Waiting characters to be read... SIM-ISR: Interrupt caught: Character underflow! SIM-T0: T0 Protocol error: Missing ACK byte -- aborting! ==> Status word: ffff * Testing SELECT: Selecting DF_GSM SIM-T0: Transceiving APDU-Header: (a0 a4 00 00 02) SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-ISR: Interrupt caught: Waiting for character to transmit... SIM-ISR: Interrupt caught: Waiting for character to transmit... At this point it hangs "forever" - well at least half hour.

13 years, 7 months

Problems while building osmocomBB

by Begerad Stefan

Hi guys, I dunno if that is the right place for my concern about building the osmocomBB source. Here is what I already have done: - downloading the sources for osmocomBB and GNU toolchain for ARM, - setting the PATH for the arm-elf-* executables, - calling make in the src directory. Now, this appears as response of the make command in the terminal: cd shared/libosmocore/build-host && ../configure configure: error: cannot find install-sh, install.sh, or shtool in ".." "../.." "../../.." make: *** [shared/libosmocore/build-host/Makefile] Error 1. If you need details about my system, you can look at the following snippet from the config.log file: This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. It was created by libosmocore configure UNKNOWN, which was generated by GNU Autoconf 2.65. Invocation command line was $ ../configure ## --------- ## ## Platform. ## ## --------- ## hostname = ubuntu-stefan uname -m = x86_64 uname -r = 2.6.32-24-generic uname -s = Linux uname -v = #41-Ubuntu SMP Thu Aug 19 01:38:40 UTC 2010 /usr/bin/uname -p = unknown /bin/uname -X = unknown /bin/arch = unknown /usr/bin/arch -k = unknown /usr/convex/getsysinfo = unknown /usr/bin/hostinfo = unknown /bin/machine = unknown /usr/bin/oslevel = unknown /bin/universe = unknown PATH: /usr/local/sbin PATH: /usr/local/bin PATH: /usr/sbin PATH: /usr/bin PATH: /sbin PATH: /bin PATH: /usr/games PATH: /home/stefan/osmocomBB/gnuarm-4.0.2/bin ## ----------- ## ## Core tests. ## ## ----------- ## configure:2032: error: cannot find install-sh, install.sh, or shtool in ".." "../.." "../../..". So, I would be very glad, if someone could give me a hint to solve the problem. Thank you in advance. Regards, begy

13 years, 8 months

Re: where is the gprs part source in the osmocom source tree?&In-Reply

by or_ora＠ovi.com

13 years, 9 months

[PATCH 0/2] Adding embedded and utilities to configure options

by Job

Hi, Attached are the patches to update configure.ac and some Makefile.am to use more default option selection style. I commented the docdir var in the main Makefile.am. The second patch contains the addition of --disable-utilities and --enable-embedded options. I never made a patch mail before so let me know if anything is missing. Best regards, Job ==== job (2): Adapted configure options to autoconf default behaviour Added autoconf option for utilities and embedded Makefile.am | 2 +- configure.ac | 55 ++++++++++++++++++++++++++++++++++++++-------------- utils/Makefile.am | 2 + 3 files changed, 43 insertions(+), 16 deletions(-) -- 1.7.4.1

13 years, 10 months

Re: Bug in frequency list generation of libosmocore

by Dieter Spaar

Hello, appended is another patch for fixing a bug in the calculation of the frequency lists. This time the patch is for the "Range 256 format". The problem is that the operand for the "smod" operation might be negative, in this case the simplified version won't work as expected. In the patch I introduced a separate function for "smod" which takes care of the sign. I have not yet checked if the other formats are also affected, this would be the case if the "smod" operand can be negative. There might be other solutions to fix the problem without the need for a separate function, however I have not thought further about it. A test vector is the following frequency list ("Range 256 format", first byte is the length): 09 8b 1c 83 8c 15 ef 02 2d 30 The correct ARFCNs are 569 571 576 578 586 608 712 715 719 The uncorrected version would instead return: 444 457 460 464 569 576 578 586 608 This means four ARFCNs are wrong which will cause problems if for example the frequency list contains the ARFCNs for hopping. Best regards, Dieter Dieter Spaar, Germany spaar(a)mirider.augusta.de

13 years, 10 months

Re: GRPS decode - trying to download firmware to C123

by smithmr103＠gmail.com

13 years, 10 months

GRPS decode - trying to download firmware to C123

by smithmr103＠gmail.com

Hello list, I'm newbee so excuse me for my very basic question. I follow all the instructions on srlabs.de/gprs given by Karsten I have a C123 and a USB / jack 2.5mm - pl2303 based :( All steps are fine until I try to programm the compal ram ;) ./host/osmocon/osmocon -m c123xor -p /dev/ttyUSB0 ./target/firmware/board/compal_e88/layer1.compalram.bin I get : ... PROMPT1... ... PROMPT2... handle_write(): xxxx bytes (xxxx/yyyy) ... ... handle_write(): xxxx bytes (xxxx/yyyy) Received 1 byte : xx Received 1 bytes : yy ... ... Finally I received e.r.r.o.r (byte by byte) NOT ACK RECEIVED... I can also get (not with the same firmware...) : ... PROMPT1... ... PROMPT2... handle_write(): xxxx bytes (xxxx/yyyy) ... ... handle_write(): finished and then... nothing... I'm going to test the cable, as Philipp has told to Pavel. I also bought a RS232 / Jack unlocking Motorola (C123) cable and I own a BlackBox FTDI based USB/RS232 cable... So I'll test it as soon as I receive the cable. Do you think is a matter of cable, who is supposed to be osmocom compatible, or a phone issue or even the USB port... ? Thank you very much for your help and excuse me again with this kind of 'stupid' question about cable. I read almost all the subjects, I did a lot of experimentations in a lot of git branch (master, testing, burst_ind - of course not working with PL2303 ... + d1cb8ea9b784c7acbafbb2fdcedbdf4655c2f6f5 not working too) I think it must work at least in the master branch... Smith

13 years, 10 months

Suggestion from the PR department

by Ingo Albrecht

Hey guys I've been noticing the neverending stream of serial cable issues popping up here. To end this, I have a suggestion: how about checking the cable type via sysfs? Greets prom

13 years, 10 months

GPRS decode:FTDI cable

by list_mailing＠libero.it

Please, can someone suggest a model for the FTDI cable? I have found different types on internet, but I'd like to buy one it will be definitively ok. Thanks in advance.

13 years, 10 months

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baseband-devel August 2011