[Halld-cal] Draft f250 data words for comments

[Elton Smith]

Hi Beni,

Yes. This would be necessary if the integral uses a variable number of 
samples. From Mark's studies it appears that an integral over about 16 
samples may be optimal at least for the bcal.

Thanks, Elton.

Elton Smith
Jefferson Lab MS 12H3
12000 Jefferson Ave STE 4
Newport News, VA 23606
(757) 269-7625
(757) 269-6331 fax

On 7/22/15 9:00 AM, Beni Zihlmann wrote:
> unless the pedestal sum contains the same number of samples as the 
> integral
> it would be necessary to also store the sample numbers in the pedestal sum
> and/or integral.
>
> cheers,
> Beni
>
>
>> Dear colleagues,
>>
>> We have been discussing various considerations for the next f250 
>> firmware upgrade. Based on the size of the spring data with mode 7, 
>> we see that the data volume is dominated by header words and not the 
>> "content" per se. Therefore, it appears that we should be able to 
>> handle the GlueX rate with 3 words for the calorimeter "content". 
>> However, it would be desirable to separate the pedestal into one 
>> word, which could be dropped if size becomes an issue. Attached is a 
>> draft scheme for discussion that achieves these goals.
>>
>> Feedback is welcome.
>>
>> Cheers, Elton.
>>
>>
>>
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>
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