adc create name base
caenv965 create name base
adc config name option value ...
caenv956 config name option value ...
adc cget name
caenv956 cget name
This command creates, configures and retrieves the configuration of CAEN V775, V785, V792, and V862, V965 digitizer modules.
Use the create subcommand to create a new adc
providing it with a unique name that will
be used to identify it in future commands. The base
parameter is the base address of the module as set in the module rotary
switches.
Use the config subcommand to configure
a module named name the option
options and legal values are described in the section OPTIONS below.
The cget subcommand returns as its value the configuration
of the module name. The configuration is
returned as a list of two element sublists where each sublist
contains, in order, an option from OPTIONS below, and its value.
Note that some values may themselves be lists.
When used with the CAEN V965 or other dual range digitizers via the
caenv956 command, each parameter specified in the adcChannels
array will result in two SpecTcl channels and corresponding raw spectra.
The first will have
.h appended to the name and will be the high range
conversion while the second will have .l appended to the
name and will be the low range value.
Allows you to reconfigure the base address of a module.
The value is a list of 32 values that are the module
thresholds. Unless -smallthresholds has been
configured to be true, these values
are multiplied by 16 before being applied as the channel
threshold values.
The value is a boolean (e.g. on or off). A true boolean means that the threshold is applied as is a false boolean means the threshold value is multiplied by 16 and then applied.
The interrupt priority level the module should use to request a VME bus interrupt. This defaults to 6 and should be set to zero to disable interrupts. Normally interrupts will be used to trigger an interrupt triggered stack. The default of 6 is historical in nature, in most cases for, the default should be overridden to zero.
The interrupt vector the module should use. This is an integer and defaults to 0x80. The vector value is ignored if the module interrupts are disabled.
Defines how many events the module should accumulate before
it interrutps. A value of zero also disables interrupts.
The default value is 24 evetns. This is best suited for
singles applications where allowing the module to accumulate
a few events before being read is a good thing.
This value will be ignored if the -ipl option
has been configured to zero as that also disables module interrupts.
Defines the geographical address that will be set in the module. If the module has a PAUX connector, this must be set to be the module's physical location in the crate. This option must be correctly programmed in order to help SpecTcl form a mapping between data values and parameter names.
Defines the fast clear window for the module.
If true the module will supress overflows and underthreshold conversions. If not all channels will supply data for an event. In most cases, this should be set to false.
Sets the full scale range of the module if it is a V775.
If the module is not a V775 TDC, this configuration parameter
is silently ignored (the hardware allows the software to
determine the module type). ns is the
range of the TDC in nanoseconds and must be between
140 and 1200.
Sets the Iped register. See section 4.34 of e.g. the CAEN V965 manual. This register controls the amount of charge initially injected into the conversion circuit and is used to compensate for leakage current that may lower the conversion of a signal during the gate. The default value is 180. Valid values are 0 - 255, however see the description of the Iped register and pedestal injections in the manual.
Example 1. Sample ADC commands
adc create adc1 0x04000000
adc config adc1 -geo 12 -supressrange off -ipl 0 -vector 0
Defines a module with base address 0x04000000 to be in geographical address 12. Range supression and interrupts are disabled.