baseband-devel May 2015

baseband-devel@lists.osmocom.org

4 participants
14 discussions

Baseband: MS '1' is up, service is limited
by Hoàng Mạnh Hùng 22 May '15

22 May '15

Hi all, *I connected, sent and made call successful with osmocombb (with real IMSI and IMEI). But, now, I get error, always be rejected:* OsmocomBB# show ms MS '1' is up, service is limited IMEI: 357337016773249 IMEISV: 3573370167732490 IMEI generation: fixed automatic network selection state: A0 null cell selection state: PLMN search radio ressource layer state: idle mobility management layer state: MM idle, PLMN search OsmocomBB# % (MS 1) % Trying to registering with network... *in my config file (/root/.osmocom/bb/mobile.cfg)**:* ! ! OsmocomBB () configuration saved from vty !! ! line vty no login ! gps device /dev/ttyACM0 gps baudrate default no gps enable ! no hide-default ! ms 1 layer2-socket /tmp/osmocom_l2 sap-socket /tmp/osmocom_sap sim reader network-selection-mode auto imei 357337016773249 0 imei-fixed emergency-imsi 452040399998391 sms-service-center +84980200030 no call-waiting no auto-answer no force-rekey no clip no clir tx-power auto no simulated-delay no stick location-updating neighbour-measurement codec full-speed prefer codec half-speed no abbrev support sms a5/1 a5/2 p-gsm e-gsm r-gsm gsm-850 dcs pcs class-900 4 class-850 4 class-dcs 1 class-pcs 1 channel-capability sdcch+tchf+tchh full-speech-v1 full-speech-v2 half-speech-v1 min-rxlev -106 dsc-max 90 no skip-max-per-band exit test-sim imsi 001010000000000 ki xor 00 00 00 00 00 00 00 00 00 00 00 00 no barred-access no rplmn hplmn-search foreign-country exit no shutdown exit ! Anyone help me???, thanks a lot! -- Thanks and Best Regards -- From: Hoàng Mạnh Hùng

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c139 nuttx bringup - irq problem?
by Craig Comstock 12 May '15

12 May '15

Hi, I'm working on bringing up nuttx on the c139. I am running this as I described previously by jumping from 0x2000 to 0x10000 with a small firmware image there and then nuttx is configured to run from flash at 0x10000. I configured nuttx RAM to live at 0x800100 to skip the exception vectors area that the compal loader sets up. NuttX is coming up somewhat but getting stuck on an unregistered interrupt #21 which seems strange since there are 21 interrupts and I thought they might be 0-based so not sure what's going on here. Was wondering if there was some state that the compal loader setup that is giving me problems or if there is some other issue going on. If anyone has an idea off-hand let me know. If I take a DEBUGASSERT() out is when I get the info about irq 21. With the DEBUGASSERT() in it seems I'm trying to do initialization during interrupt handling somehow? "This API should not be called from interrupt handlers" is the comment near the assert in sem_wait(). Attached is a serial log from the phone booting up. I've added a lot of debug logging beyond what is normally in NuttX. I included first a log with DEBUGASSERT() included and then one without. Thanks,Craig

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patch on jolly/menu for jumper app
by Craig Comstock 08 May '15

08 May '15

Here is a patch for a simple "jumper" app which loads at 0x2000 and which disables the irqs (thought it might help with the nuttx startup error I have) and jumps to 0x10000 (where I have flashed nuttx). I'm submitting a patch to nuttx as well for building nuttx.bin for running in compal_e86 flash. I may have fouled up the patch due to being on jolly/menu. Wasn't sure if you wanted to pull in those changes as well? I've certainly used the menu app with the flashing_new instructions and it seems to work great on my c139. -Craig

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nuttx, menu, loader, running from flash
by Craig Comstock 07 May '15

07 May '15

Hi, I'm trying to get nuttx running on my C139 compal_e86(88?) phone. I have been reading some emails and loader scripts but am a bit unexperienced with this area of software. I've managed to use the "menu" app with flashing successfully but so far am unable to get nuttx to run either due to the compal loader not letting me load more than 128k into highram or the flash setup not being quite right in terms of loader scripts. I think what I would like is this (based loosely on LINKAGE.txt in osmocom-bb/.../compal_e88) - keep compal loader at 0x0- put something custom at 0x2000, either the menu app or a simple 2nd stage loader- put nuttx at 0x10000 The "menu" app option (http://bb.osmocom.org/trac/wiki/flashing_new) would require me to modify that code a bit so that I wasn't copying nuttx into highram but instead just running it "in-place" in flash. So maybe two header options: "highram:APPNAME" and "flash:APPNAME"? I suppose I could try running nuttx in highram as menu currently intends, by copying it from flash to ram but that seems sort of "wrong" if nuttx is my main goal. The "other" option would be to write some simple loader for 0x2000 which did whatever setup might be required (none?) and simply jump to 0x10000. That way the ideas in LINKAGE.txt about safety and what-not are preserved. If I need to flash a new nuttx image I don't have to worry about ruining page 0 and compal loader and bricking the phone. Another option would be to replace the compal loader but I'd rather get to nuttx sooner than later and don't see much immediate advantage to an entirely custom bootloader. If I preserve the compal loader then all the normal osmocom-bb functionality is preserved in terms of being able to load layer1, rssi if you want to in highram while nuttx could be living in flash for booting into "normally" to use as a consumer-style device. I think I prefer the "other" option I mention above to keep things fairly simple. Do you think I can just use the flash.lds from compal_e88, modify slightly for e86 (bigger IRAM I think is the only change) and simply put a jump at 0x2000 to 0x10000? Would that take care of exception vectors, setup and all the other stuff I don't currently understand about bringing things "up"? Just FYI, I am working off the latest nuttx code and not nuttx-bb since nuttx-bb seems pretty out of date. Not sure what folks want to do with that. Thanks,Craig

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baseband-devel May 2015