The ULMTrigger is intended to control a LeCroy 2367 ULM situated in a crate controlled by a CC-USB. It is the counterpart to the CBDULMTrigger driver that lives in the VMUSBReadout framework. In this case, the ULMTrigger does not need to be registered first to a CamacCrate, though it still can be. Instead, it can be directly registered to a stack.
Two options need to be specified to function properly. The first is firmware which defines the location of the firmware file to load. The second is the slot number in the camac crate it lives in. This will only work properly if running the usbtrig.bit firmware that Daniel Bazin has written.
On initialization the module will always be cleared and the GO bit set to 1.
At the end of the run, the GO bit is set to 0.
During stack execution initiated by an event trigger, the following logic is carried out:
if "-registerRead" is true
Read the register
if "-eventwiseClear" is true
Clear the register
By default, both -registerRead and -eventwiseClear are set to false.
Specifies the slot of the CAMAC crate the target module is occupying. Default is 1.
The path to the firmware file usbtrig.bit. Default is "".
Specifies whether to add a hit register read into the event stack. Defaults to true.
Specifies whether to send a clear command via the CAMAC dataway at the end of the event. Defaults to true.
By default, the ULM will only load the firmware if it fails to validate the configuration. This occurs always after a bad firmware load or after a crate has been power cycled. Firmware loads take a bit of time so it is worthwhile to skip reloading the firmware on every run. However, sometimes it may be considered useful. This option causes the firmware to be loaded at the start of EVERY run. Defaults to false.
Specifies the number that will be used to validate a successful firmware configuration. This number is compared to the value returned by the function A=15 F=0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Unknown. Default is 0.
Example 1. A simple setup of a single ULM
# Define values for each parameter in TRIGGER array
ULMTrigger create sclr -slot 23
ULMTrigger config ulm firmware /user/s800/server/fpga/usbtrig.bit
ULMTrigger config ulm -pcDelay $TRIGGER(PCDelay) \
-pcWidth $TRIGGER(PCWidth) \
-scDelay $TRIGGER(SCDelay) \
-scWidth $TRIGGER(SCWidth) \
-psDelay $TRIGGER(PSDelay) \
-ccWidth $TRIGGER(CCWidth) \
-ssDelay $TRIGGER(SSDelay) \
-bypasses $TRIGGER(Bypasses) \
-pdFactor $TRIGGER(PDFactor) \
-sdFactor $TRIGGER(SDFactor) \
-triggerBox $TRIGGER(TriggerBox) \
-inspect1 $TRIGGER(Inspect1) \
-inspect2 $TRIGGER(Inspect2) \
-inspect3 $TRIGGER(Inspect3) \
-inspect4 $TRIGGER(Inspect4) \
-adcWidth $TRIGGER(ADCWidth) \
-qdcWidth $TRIGGER(QDCWidth) \
-tdcWidth $TRIGGER(TDCWidth) \
-coincWidth $TRIGGER(CoincidenceWidth) \
-configuration $TRIGGER(configuration)
ULMTrigger config trig -forceFirmwareLoad off
ULMTrigger config trig -readRegister on
ULMTrigger config trig -eventwiseClear off
Sets up a ULM module in slot 23.