[subexp-daq] UCESB - follow-up question on CAEN V767

[Weber, Guenter Dr.]

Dear friends,


one thing I don't understand yet:


  MEMBER(DATA24 data[VME_CAEN_V767x_NUM_CH] ZERO_SUPPRESS_MULTI(128));


This generate a 2D array with 64 x 128 fields, right? I just copied the code from the V1n90 module. But in the manual of V767, I did not find a restriction on how many hits for each channel can be stored. The only limitation I came accross is right on the first page: the FIFO buffer is 32k words deep. 32.000 hits sounds like a crazy amount to me, but ok.


Would it be better to put the data into a list of unspecified length, coding the channel number with higher bits that are not used by the hit time? Otherwise we have a problem if (in a very hypothetic case) the 129th hit for a given channel appears in the data.





Best greetings

Günter


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