[Halld-level1] Pulse raw readout mode

[Alexander Somov]

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
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>> Halld-level1 at jlab.org
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>
> -- 
> -------------------------------------------------------------------------------
> 		 Bryan Moffit
> 	  email: moffit at jlab.org
>       web page: http://www.jlab.org/~moffit
>
> Sent from my Dell Precision T5500 running Linux.
>