ccusb (command)

Defines the start of the module internal gate and delay generator A. This can be one of: disabled, in1, in2, in3, event, eventend, usbtrigger, or pulser. Sections 3.3.6 and 3.3.7 of the CCUSB manual provide more information about the Gate and delay generators.

This option defaults to disabled

Same as -gdgasource, however the B gate and delay generator start is set. The same set of values accepted for -gdgasource are accepted for this option.

Sets the output width of the A Gate and delay generator. This can be a value from 0 through 0xffff and is in 10ns units.

Sets the output width of the B gate and delay generator.

Sets the output delay on the A gdg output. This can be in the range 0 through 0xffffffff. It winds up setting both a field in the DGG_A register and the DGG_Ext register.

Sets the output delay on the B gdg output.

Sets the signal that is reflected on the red LED on the module front panel. This is modified by the -redinvert and -redlatch options described below.

Legal values are event, busy, usboutnotempty and usbinnotfull

This boolean parameter, if true inverts the sense of the red front panel LED.

If true, this boolean parameter latches the red front panel LED on once the condition required to ligth it is met.

This enumerated parmeter, together with -greeninvert and -greenlatch, determines when the green LED should be lit. Valid values are: acquire, nimi1, nimi2, usbinnotemtpy and usbtrigger.

Inverts the sense of the green front panel LED.

Latches the green LED on when the condition to light it is met.

Together with -yellowinvert and -yellowlatch when the yellow front panel LED is lit. This can be one of the following values: nimi1, nimi3, busy or usbinfifionotempty.

Defines what makes the A scaler count. This can have any of the following values: disabled, nimi1, nimi2, nimi3, event, carryb, dgga or dggb. The carryb increments the scaler when the B scale overflows. This provides the ability to make the A scaler the most significant 24 bits of a 48 bit scaler with the B scaler the least significant 24 bits.

Defines what makes scaler B count. This can have any of the following values: disabled, nimi1, nimi2, nimi3, event, carrya, dgga or dggb. The carrya increments the scaler when the A scale overflows. This provides the ability to make the B scaler the most significant 24 bits of a 48 bit scaler with the A scaler the least significant 24 bits.

Together with -out1invert and -out1latch determines the condition that drives the O1 NIM output. This can be one of the following values: busy, event, gdga or gdgb.

Inverts the sense of the O1 NIM output.

Latches the state of O1 once the condition needed to make it a logic true has been detected.

Together with -out2invert and -out2latch determines when the NIM O2 signal is asserted. This can be one of the following values: acquire, event, gdga, or gdgb.

Inverts the sense of the O2 NIM output.

Latches the NIM O2 state when the condition to assert it has been met. This condition is determined by both -out2 and -out2invert.

Together with -out3invert and -out3latch determines the behavior of the NIM O3 output. This can be any of the following values: busyend, busy, gdga, or gdgb.

Inverts the condition that asserts O3.

Latches O3 in the asserted state when the condition to assert it is met.

Boolean that when true enables the readout of the A and B scalers in the stack this module is in. The A scaler is read first then the B scaler.

This boolean parameters only matters when -readscalers is true. It causes the scalers to be cleared once they have been read. Note that in general some counts may be lost as there is no way to atomically read and clear the scaler counters.