SoLID DAQ » Telescope Cerenkov

h1. Wiki

h1. DAQ

h2. Starting CODA

DAQ is running on simonadaq computer in coda account in the vnc session number 1.

To open VNC, either start VNC from a computer at the counting house through ssh or make a ssh tunnel if you are offsite

Example :

   ssh -L5901:locahost:24567 username@hallgw.jlab.org     ( use a port number not in used on hallgw )

after from hallgw

   ssh -L24567:localhost:5901 cdaq@simonadaq 

then open a vnc locally on your computer : vncviewer -shared localhost:1 ( ask Junqi or Sylvester for the vnc password )

To start CODA from scratch, login as coda

type startcoda

that will open the CODA windows

If the ROC is not started alread, ssh root@hallcsc-1 and type ./startroc1

in Run Control GUI, go to platform and connect.

Then choose the FADC configuration and just start a run.

To change the FADC parameters,

ssh to hallcsc-1 as root

go to /root/linuxvme/fadc/rol

and edit fadc_list.c

once done compile with :

 make fadc_list.so

and redownload in CODA to take the changes into account

h2. Channel Map

I saw from time to time error in FADC ROC window about scanmask, usually stopping the run and redownloading fixes the issue.

h1. FADC data analysis

on cdaq account

go to /home/cdaq/tlgc/FADC_decode

and run FADCcom program

you need to copy the CODA file from simonadaq to /net/cdaq/cdaql1data/cdaq/tlgc/data ( from simonadaq : scp fadc_runnumber.dat cdaq@cdaql2:tlgc/data/ )

if you open the rootfile you will see the different directories corresponding to the channels decoded.