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Christian Schulte cs at saturn2.franken.deOh i am sorry. I think i got it. osmobts-trx was not running. There was simply no configuration being distributed from layer2 to layer1. (as far as i understand it) That guide is quite useful but also quite lengthy :D http://openbsc.osmocom.org/trac/wiki/network_from_scratch cheers, Christian On 01/29/2014 05:36 PM, Christian Schulte wrote: ..... > > Now i wanted to communicate with a second phone and > have tried setting up a BTS following this guide > > http://openbsc.osmocom.org/trac/wiki/network_from_scratch > (using a single phone) > > My problem is that the phone doesnt transmit anything. > Yes i have enabled the transmitter flag in the Makefile. ;) > When i use osmocon to load the TRX into the phone and start the > osmocom-transceiver i get this debug output from osmocon. > > ... > Synchronize_TDMA > =>FB @ FNR 26585 fn_offset=2002505 qbits=4924 > LOST 1910! > BTS MODE: 255 65535 {0,0,0,0,0,0,0,0} TX 0..7 RX 0..7 > > > After taking a look at the code the values seem weird > and they come from the transceiver function l1ctl_tx_bts_mode() > like that. > /host/layer23/src/transceiver/l1ctl.c:120 > > As a test i got the phone to transmit something by > overwriting the values on the TRX side. > > I havent gone further yet but wanted to ask if someone could > maybe point me to an obvious mistake i did before i > spend more hours on this issue. > A hint as to how i enable the different logging settings > would be great as well. > > > thanks, > best regards, Christian > > > >