src/j1.md

J1 
==

Initialization of CAMAC/VME
------------------------

The ADC/TDC modules in the CAMAC or VME crate
need to be initialized when the power is turned on.  

VME initialization:
1. login babar   (just type "babar" from dat2 machine).
2. You should be at ~/exp/????, ???? is the directory of the current experiment. 
Do "cd vsta" there.
3. 
 - The VME modules can be initialized by "vmestat all.vsta",
if you prepared "all.vsta".
 - The vsta file could be made by a perl script, makevsta.pl.
In that case, run "vmeinit.sh". (This is the usual case.)  
4. On the execution of vmestat, the LEDs on the modules should flash.

- "makevsta.pl" overwrites "all_auto.vsta".
- You can change the settings by editing the first part of "makevsta.pl".
 + \@modules...specify ADC/TDC, GEO number, and adress. 
 + \@disable...You can specify unnecessary channels for each module.
 + $fsr...TDC's Free spectral range parameter. (See Baba-san's web page.) 
 + $thres...Common ADC threshold (All channels become the same.)
-vmeinit.sh is a shell script which call "makevsta.pl" and "vmestat all.vsta".

CAMAC initialization:
1. Login to dat. (It is not dat2 or babar!). Username is "rips", and the password is "o********".
2. Do "cd 3351_init".
3. Execute "init.sh".
4. Make sure the station no. etc. are correctly configured.
5. If if fails (it often fails), try the following:
 rerun the script, send "clear" by the switch at the CAMAC crate,  turn off and on the crate,  
 
Files:
 - generate_ccsta.pl...  Perl script to generate ccsta file
 - gc_3351.ccsta, gc_3371.ccsta...  ccsta files generated.
 - check.sh...script to check the configurations.
 - init.sh... shell-script to execute "ccstat"  and "check.sh".