Import all content from twiki. authored by Cedric Roux's avatar Cedric Roux
This was done by copying by hand. There might be errors or missing materials.

It might be better to redo the import using source material coming directly
from the harddisk of twiki.eurecom.fr. To see with IT department.

There still remains to convert those files to MarkDown format.
---+ Graphical Scope
There is a graphical scope that allows to debug signals on the physical layer. It is located in openair1/USERSPACE_TOOLS/SCOPE. It can be compiled using "make chbch".(Note: compiling the Scope requires the libforms libraries - _sudo apt-get install libforms-dev_)
The usage is
./chbch_scope transport_channel nb_tx_antennas chsch_index
transport_channel: 0=CHBCH 1=RACH 2=DCCH/SACH 3=MRBCH<br />nb_tx_antennas: number of Tx antennas (usually 2 for CBMIMO1)<br />chsch_index: only used when transport_channel==0 (CHBCH)
For the LTE branch use the LTE scope. Use "make lte" for the UE and "make lte_ul" for the eNb. Start it with "./lte_scope" and "./lte_scope_ul" (no arguments needed). See attachement on this page for a description of the scope.
---+ Proc
A proc filesystem is created by the openairinterface modules.
/proc/openair1/bch_stats<br />/proc/openair1/openair1_state<br />/proc/openair2/lchan_stats
The best way to use it is to use "watch -n.1 cat /proc/openair1/bch_stats".
---+ fifo
The messages generated by the modem are output the the fifo /dev/rtf63. You can read them using
cat /dev/rtf63
-- User.FlorianKaltenberger - 08 Oct 2009