[Halld-level1] Pulse raw readout mode

[Bryan Moffit]

Seems like you need NSB+NSA = even number... otherwise you lose a 
sample.  Probably because the data is stored as 4 byte words?

Try 10+16 or 11+15 if you must have at least 25 samples.

On 01/26/2012 12:12 PM, Alexander Somov wrote:
>
> How are Nsa and Nsb implemented ?
>
> How many samples should I see for Nsb = 10 Nsa = 15
> (10 + 15 = 25 or 10 - 1 + 15 -1 + 1 = 24 )?
>
> I see 24 samples in data.
>
> An example from the flash readout:
>
> 0xb1800013 0x00850087 0x00870086 0x00860084 0x00860089 0x008a0090
> 0x00910088 0x00880085 0x008a0088 0x00820089 0x00840085 0x00870080
> 0x008c0083 0xb380000e (new channel)
>
> 0xb1800013 - pulse raw, ch 3, first sample number 19 (i.e., middle of
> the readout window)
>
> Thanks,
> Alex
>
>
>
>
>
>
> On Thu, 26 Jan 2012, Bryan Moffit wrote:
>
>> Translating the arguments for Hai and Ed:
>>
>> FA_SLOT: flash slot number
>> 2: Raw Pulse Mode
>> 170: Window Latency (in 4ns samples)
>> 50: Window Width (in 4ns samples)
>> 10: NSB
>> 15: NSA
>> 3: Number of pulses to process
>> 0: Ignored on v2.0
>>
>>
>> On 01/26/2012 11:47 AM, Alexander Somov wrote:
>>> Hi Hai, Ed,
>>>
>>> Quick question:
>>>
>>> I initialize the board in the pulse raw data
>>> faSetProcMode(FA_SLOT,2,170,50,10,15,3,0),
>>>
>>> i.e., Nsb = 10 Nsa = 15
>>>
>>> How many samples should i see in data ?
>>> I am getting 24 samples for pulses that crosses a threshold
>>> in the middle of the readout window. Is it correct ?
>>>
>>> Thanks,
>>> Alex
>>> _______________________________________________
>>> Halld-level1 mailing list
>>> Halld-level1 at jlab.org
>>> https://mailman.jlab.org/mailman/listinfo/halld-level1
>>
>> --
>> -------------------------------------------------------------------------------
>>
>> Bryan Moffit
>> email: moffit at jlab.org
>> web page: http://www.jlab.org/~moffit
>>
>> Sent from my Dell Precision T5500 running Linux.
>>

-- 
-------------------------------------------------------------------------------
		 Bryan Moffit
	  email: moffit at jlab.org
        web page: http://www.jlab.org/~moffit

Sent from my Dell Precision T5500 running Linux.
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