Log entry time 03:56:01 on September 06, 2009

Entry number 288238

The following lines have been added to the respective boot files:

Right arm: happex7.boot

#

#set adc18 gains

# Set integrator gain factor.

# note: a gain of '3' is minimum, '0' is max (in terms of result per volt)

adc18_intgain(0,3);

adc18_intgain(1,3);

adc18_intgain(2,3);

adc18_intgain(3,3);

adc18_intgain(4,3);

# Set V-to-C conversion. The gain is linear in 'conv'

adc18_setconv(0,0);

adc18_setconv(1,0);

adc18_setconv(2,0);

adc18_setconv(3,0);

adc18_setconv(4,0);

#

#

Left arm: hallavme14.boot #

#set adc18 gains

# Set integrator gain factor.

# note: a gain of '3' is minimum, '0' is max (in terms of result per volt)

adc18_intgain(0,3);

# Set V-to-C conversion. The gain is linear in 'conv'

adc18_setconv(0,0);

#

#

Counting House: halladaq6.boot

#set adc18 gains

# Set integrator gain factor.

# note: a gain of '3' is minimum, '0' is max (in terms of result per volt)

adc18_intgain(0,2);

# Set V-to-C conversion. The gain is linear in 'conv'

adc18_setconv(0,0);

#

#

This is not a very good way of presetting the adc gains, but it does the job. It sets the adc gains to appropriate levels, so that we are not at the mercy of shift workers' capacity to set the gains properly every time the crates are rebooted. If the adc18s are added or removed from the crates, then one needs to modify the gain parameters in the respective boot files. This is only meant to be a temporary solution until we come up with a better one.

A copy of this log entry has been emailed to: dalton@jlab.org, paschke@jlab.org, mercado@jlab.org, rom@jlab.org