Re: MSCB

[Steven Clayton <smclayto@npl.uiuc.edu>]

Hello Francoise and Julia,

I would suggest that you first try the program called msc
provided with the Midas distribution.  It is in the directory
$MIDAS_ROOT/mscb.  It may require root privileges to access
the USB port (as with mscb_scs900_frontend).  Within msc,
do "addr 1" to address the node, then commands such as "info",
"write 9 3.14", etc., to make sure the the computer and MSCB
bus are properly communicating.  The mscb_scs900_frontend
should probably be stopped before running msc.

As far as the mwpc_hv_frontend, it does seem to run for me
(logged in as "data").  It started, anyway, and the ODB was
not wiped out in the process.  You are using
"CHAMBER=EPC1 ./mwpc_hv_frontend" to start it, right?
Regardless, if the CHAMBER environment variable is not set
it should calmly exit after writing a message to midas.log.
I corrected the log file path in recover.odb and also in the
present ODB, so you can check the midas.log file to see if
there are any helpful messages.

Good luck.

Steven


On Sat, Jul 30, 2005 at 10:29:39PM +0200, Francoise Mulhauser wrote:
> Hi Steven,
> 
> Thanks for your answer. However, I don't understand why the
> main frontend is not working. What do we have to do to make
> it working properly.
> I have load the recover.odb. I have even changed the logger
> dir to be ok on this machine. 
> --> I try to start the mwpc, but the program fail and even
> destroy the content of the odb, because at the next odbedit,
> the entire experiment is gone.
> 
> I believe it has something to do with the main program not
> working.
> 
> Julia will be in front of the computer on Tuesday, totally
> alone. I don't know what advice I have to give to her now. 
> 
> I am wondering if the system is really talking to the mscb
> or if we have to change something in the system. I have
> writen an elog about all details (run9 preparation).
> 
> Thanks for anyone's help!
> 
> best regards
> 
> Francoise