create new tag
, view all tags

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
nb_tx_antennas: number of Tx antennas (usually 2 for CBMIMO1)
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.


A proc filesystem is created by the openairinterface modules.


The best way to use it is to use "watch -n.1 cat /proc/openair1/bch_stats".


The messages generated by the modem are output the the fifo /dev/rtf63. You can read them using

cat /dev/rtf63

-- FlorianKaltenberger - 08 Oct 2009

Topic attachments
I Attachment Action Size Date Who Comment
PDFpdf Scope.pdf manage 266.6 K 10 Mar 2010 - 09:04 FlorianKaltenberger Description of Scope
Topic revision: r5 - 01 Jun 2011 - FlorianKaltenberger
Copyright 2004-2010 Institut Eurecom & all contributing authors.