Hello,
I am trying to load helloworld firmware into my phone (Motorolla C118) using sysmocom CP2102-25 cable by executing the following command
sudo ./osmocon -p /dev/ttyUSB0 -m c123xor ../../target/firmware/board/compal_e88/hello_world.compalram.bin
But I am not getting any response on pressing power button briefly. The command keeps on executing without any message. What can be the issue and how to deal with/debug this issue.
I have also attached a cu terminal by using following command.
$ sudo cu -l /dev/ttyUSB0 -s 115200
The cu terminal displays this message on pressing power button.
��A@ftmtoolerror
Hi all,
Somoene shared what looks like a quite useful datasheet for MT6260 at the kosagi/fernvale forum. I have downloaded it and looked a bit and it looks very helpful.
I have linked to it in the wiki at: https://osmocom.org/projects/baseband/wiki/MT6260
Original post at kosagi forum: https://www.kosagi.com/forums/viewtopic.php?pid=3313#p3313
I hope to rejoin my effort on porting layer1 firmware to fernvale in about 1 month.
Cheers,
Craig
Hello Andreas,
sorry for late response.
> I set up a network with Virtual Um and multiple OsmocomBB
> phones. They register, they can send and receive SMS
> and I wanted to try voice calls.
First of all, it should be noted that voice support in OsmocomBB
is experimental and undocumented. I have been working on GAPK
back-end integration, and it seems you've already found some
branch, but I would recommend to use 'fixeria/audio' instead of
'fixeria/mncc'.
> calls can be established, but GAPK is never initialized and
> again, I never see voice data appearing as an MNCC message.
Please check out the configuration examples [1] for mobile app.
There you should find the new 'audio' section, where:
io-target hardware
means that audio I/O (by default) should be handled by the
hardware (i.e. by Calypso phone). GAPK is not enabled by default.
In order to use GAPK based back-end, use 'gapk':
io-target gapk
It probably makes sense to rename 'gapk' to 'alsa', because
at the moment 'gapk' enables both voice playback and capture
using the audio system of the host that running mobile.
> I never seem to receive a GSM_TCHF_FRAME-message on
> the MNCC socket.
This can also be configured:
io-target socket
In this case GAPK is not used, and all TCH frames are being
forwarded to the MNCC handler 'as-is'.
See [2] commit description for details.
Please also note that audio I/O target != MNCC handler, that
actually implements the Call Control logic. See [3] for details.
[1] https://git.osmocom.org/osmocom-bb/tree/doc/examples/mobile/default.cfg?h=f…
[2] https://git.osmocom.org/osmocom-bb/commit/?h=fixeria/audio&id=bdb2854503afd…
[3] https://git.osmocom.org/osmocom-bb/commit/?h=fixeria/audio&id=22edbf3f846b1…
With best regards,
Vadim Yanitskiy.
Hi,
I set up a network with Virtual Um and multiple OsmocomBB phones. They
register, they can send and receive SMS and I wanted to try voice calls.
I looked around and found a repository [1] with an MNCC example
application which sends voice samples. Calls are established and can be
picked up, but on the other end, but I never seem to receive a
GSM_TCHF_FRAME-message on the MNCC socket.
I then checked out the fixeria/mncc branch [2] which includes GAPK
integration which can use ALSA devices for audio, because that's what I
need anyway at some point for my project I'm working on.
Again, calls can be established, but GAPK is never initialized and
again, I never see voice data appearing as an MNCC message.
The GAPK audio backend is supposed to be initialized [3] when a CHANNEL
MODE MODIFY message is received from the network. I never see the
network request a channel mode modify though. I don't know enough about
GSM to find out if that message is always supposed to be sent when a
call is established or not.
Did anybody ever transport audio with two OsmocomBB instances over the
Virtual Um interface?
Thanks,
- Andy
[1]: https://github.com/GerardPinto/call-control-mncc-sap
[2]: https://git.osmocom.org/osmocom-bb/log/?h=fixeria/mncc
[3]:
https://git.osmocom.org/osmocom-bb/tree/src/host/layer23/src/mobile/gsm48_r…
== OsmoCon 2018 ==
OsmoCon (Osmocom Conference) 2018 is the technical conference for
Osmocom users, operators and developers!
We are happy to announce the date of OsmoCon 2018. It has been scheduled
on October 18 + 19, 2018 and will happen in Berlin, Germany.
For the second time, the Osmocom Conference brings together users,
operators and developers of the Osmocom Open Source cellular
infrastructure projects, such as OsmoBTS, OsmoBSC, OsmoSGSN, OpenGGSN
and others.
Join us for two days of presentations and discussions with the main
developers behind Open Source Mobile Communications, as well as
commercial and non-profit users of the Osmocom cellular infrastructure
software.
You can find some initial information in our wiki at
http://osmocom.org/projects/osmo-dev-con/wiki/OsmoCon2018
which will be updated as more information becomes available.
== Call for Participation ==
We're also at the same time announcing the Call for Participation and
call on everyone with experiences to share around the Osmocom member
projects to submit talks, workshops, discussions or other proposals.
You can find the CfP at https://pretalx.sysmocom.de/osmocon2018/cfp
We are particularly looking for contributions about:
* updates on features/functionality/status of individual Osmocom projects
* success stories on how Osmocom projects are deployed in practice
* migration from OsmoNITB to the post-NITB architecture
* tutorials / workshops on how to setup / analyze Osmocom projects
* statistics, reporting, operations aspects of Osmocom projects
* third-party open source utilities to be used with Osmocom projects
Looking forward to meeting many existing and new Osmocom users at OsmCon
this October!
Regards,
Harald Welte
--
- 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)
hello there I would like to know how to connect more than to phone to the
transceiver in osmocombb. I tried with the -2 option of jolly/trx branche
and it don't work and there is no -3 option please tell me how to do thanks
in advance.
Bastien Baranoff
Hi all,
Gr-gsm's receiver currently relies on having SCH channel to keep
synchronization. I want to remove that requirement so it'll be more
usable in an SDR based burst transceiver for OsmocomBB.
To do this it would be great to know how normal mobile phones maintain
synchronization, something I don't know currently. Especially:
1. How often mobile station (MS) checks if the synchronization is kept?
2. What is usually used to check if synchronization is kept, especially
when a MS is on a traffic channel?
3. How MS regains synchronization? Does it always do full FCCH+SCH scan?
Thanks in advance,
Piotr Krysik