baseband-devel August 2011

baseband-devel@lists.osmocom.org

31 participants
50 discussions

Bug in frequency list generation of libosmocore

by Dieter Spaar

Hello, there is a small bug in the calculation of the "Range 1024" format frequency list. A patch is appended. I post it here because I found it while working with OsmocomBB. Best regards, Dieter Dieter Spaar, Germany spaar(a)mirider.augusta.de

14 years

Fwd: i got C115 device . now i am searching for the cable to flash the Build on to the device.

by Alvin Schurman

---------- Forwarded message ---------- From: Alvin Schurman <alvin.schurman(a)gmail.com> Date: Tue, Aug 9, 2011 at 5:37 PM Subject: Re: i got C115 device . now i am searching for the cable to flash the Build on to the device. To: nagesh reddy <karnatinagesh(a)gmail.com> I too have a C115 at home. I ordered it to flash and so I could experience a little hands-on learning with GPRS. The first thing I noticed was that there was no usb port or data cable input of any kind on the phone. After a little digging, I found that it has a line of JTAG pads under the battery. I wasn't equipped or trained to tackle JTAG so I stopped where you are. Hopefully, you'll get an answer so I can pick up where I left off when I'm back home with my C115. Cheers, Al On Tue, Aug 9, 2011 at 9:48 AM, nagesh reddy <karnatinagesh(a)gmail.com>wrote: > Hi Guys, > > > i got the Motorola C115 device and i want to flash the Build into the > device. from where can i get the cable > so that i can flash the stack and seee. > > > > regards, > nagesh. > > >

14 years

i got C115 device . now i am searching for the cable to flash the Build on to the device.

by nagesh reddy

Hi Guys, i got the Motorola C115 device and i want to flash the Build into the device. from where can i get the cable so that i can flash the stack and seee. regards, nagesh.

14 years

RRLP support in osmocombb

by Akib Sayyed

i am bit new to GSM and osmocombb. does osmocombb support RRLP protocol. @herald i saw in your presentation that we can send custom time advance. does that related to RRLP. also can we fake position using osmocombb? -- Akib Sayyed Matrix-Shell akibsayyed(a)gmail.com akibsayyed(a)matrixshell.com Mob:- +91-966-514-2243

14 years

Issue with GSM1800/1900

by Dieter Spaar

Hello Andreas, there is a small issue with GSM1800/1900 in the mobile application: When a location update is performed, the wrong power capability is set in Mobile Station Classmark 1. As a workaround I fixed it this way: --- ./host/layer23/src/mobile/gsm48_mm.c Mon Jul 25 15:40:50 2011 +++ r:./host/layer23/src/mobile/gsm48_mm.c Thu Aug 04 13:15:09 2011 @@ -2321,7 +2321,11 @@ gsm_print_mcc(subscr->mcc), gsm_print_mnc(subscr->mnc), subscr->lac); /* classmark 1 */ +#if 0 pwr_lev = gsm48_current_pwr_lev(set, rr->cd_now.arfcn); +#else /* cd_now not yet set, take selected cell ARFCN !? */ + pwr_lev = gsm48_current_pwr_lev(set, rr->ms->cellsel.sel_arfcn); +#endif gsm48_encode_classmark1(&nlu->classmark1, sup->rev_lev, sup->es_ind, set->a5_1, pwr_lev); /* MI */ The reason for the the wrong power capability comes from the fact that "rr->cd_now" is not yet set and so the ARFCN is 0 which causes the GSM900 power capability to be used. It is set to "Class 4" in the configuration file per default, however this value is not defined for GSM1800/1900. I am not sure if my workaround is perfect, you are the expert for "mobile" ;-) Although this might sound like not that important (networks with OpenBSC or OpenBTS don't care at all about the value) there are some real networks out there which don't like it. On a related note: The default TX power calibration curve for GSM900 causes too less TX power for GSM1800/1900, expecially for low power settings. I will try to improve my current workaround for this and provide a patch. Best regards, Dieter -- Dieter Spaar, Germany spaar(a)mirider.augusta.de

14 years

Invitation to connect on LinkedIn

by Nageswara Reddy

I'd like to add you to my professional network on LinkedIn. - Nageswara Nageswara Reddy Sr Tech Leader at Aricent Technologies Bengaluru Area, India Confirm that you know Nageswara Reddy: https://www.linkedin.com/e/-5d8k6r-gqxioekp-57/isd/3755268124/Ee1Qtm6Z/ View Nageswara's profile: http://www.linkedin.com/e/-5d8k6r-gqxioekp-57/LawAMDCaoL5bNI_JVaTOJ82bmKOYl… -- You are receiving Invitation to Connect emails. Click to unsubscribe: http://www.linkedin.com/e/-5d8k6r-gqxioekp-57/LawAMDCaoL5bNI_JVaTOJ82bmKOYl… (c) 2011 LinkedIn Corporation. 2029 Stierlin Ct, Mountain View, CA 94043, USA.

14 years

returning twice in lapdm.c

by screaming-pain

Dear all, in the if starting at line 1591 in lapdm.c there are two return, maybe you want to fix this 1591 if (!mctx.dl) { LOGP(DLAPDM, LOGL_NOTICE, "Received frame for unsupported " "SAPI %d!\n", sapi); return -EINVAL; msgb_free(msg); return -EIO; 1597 } Regards, Loretta -- View this message in context: http://baseband-devel.722152.n3.nabble.com/returning-twice-in-lapdm-c-tp321… Sent from the baseband-devel mailing list archive at Nabble.com.

14 years

small bug?

by Job

Hi, I noticed in src/target/firmware/calypso/dsp.c: static void dsp_pre_boot(const struct dsp_section *bootcode) { dputs("Assert DSP into Reset\n"); calypso_reset_set(RESET_DSP, 1); if (bootcode) { dputs("Loading initial DSP bootcode (API boot mode)\n"); dsp_upload_sections_api(dsp_bootcode, DSP_BASE_API_MIRROR); It seems that the intention is to pass bootcode to dsp_upload_sections_api, but it is still using the hardcoded dsp_bootcode. No functional impact as it is nowhere used with any other bootcode. Best regards, Job

14 years

where is the gprs part source in the osmocom source tree?

by John Wu

Hi all, I need the GPRS source code for reference, where is it in osmocom source tree?

14 years

C115 using loader.compalram.bin

by Bruce, Bryan

Hello, I am using a C115 with a t191 cable. We have completed the "Getting Started" steps and have compiled all the necessary code. I are currently trying to run osmocon to download code onto the phone. The following output appears when we run the script: bruceb@ubuntu:~/osmocom-bb/src/host/osmocon$ ./osmocon -p /dev/ttyUSB0 -m c123xor ../../target/firmware/board/compal_e88/loader.compalram.bin got 1 bytes from modem, data looks like: 2d - got 1 bytes from modem, data looks like: 34 4 got 1 bytes from modem, data looks like: 29 ) got 1 bytes from modem, data looks like: 28 ( got 1 bytes from modem, data looks like: 32 2 got 1 bytes from modem, data looks like: 39 9 got 1 bytes from modem, data looks like: 30 0 got 1 bytes from modem, data looks like: 20 got 1 bytes from modem, data looks like: 2d - got 1 bytes from modem, data looks like: 34 4 got 1 bytes from modem, data looks like: 29 ) got 1 bytes from modem, data looks like: 0a . got 1 bytes from modem, data looks like: 0d . got 1 bytes from modem, data looks like: 02 . These lines continue and no script indicates anything is being downloaded, as shown on the wiki site. I have unlocked the phone and put it in "earphone" mode beforehand. I have also tried to press the power button as directed to. Are there any suggestions on how to fix this problem? Thank you, Bryan Bruce

14 years

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baseband-devel August 2011