Re: [Alibava-general] Select strip for calibration pulse

[Ricardo M. <rm...@if...>]

  Hi Alexander,

As you say, the way to select single channels or a pattern for the 
calibration pulses in the Beetle ASIC is the TpSelect register. This 
register configures whether each one of the 128 input channeles is open 
or not to the calibration pulse. The register is configured by slow 
control and it must be wirtten 16 times with a given pattern of 8 bits, 
that is, the channels are grouped in groups of eight.

However, this is done automatically by the Alibava system at FPGA level 
in the calibration run. The system opens the 128 channels of each Beetle 
when enters in the calibration state, then performs the calibration run, 
and it closes the 128 channels of each Beetle after the calibration run 
is finished. So currently, there is no way to select a single channel or 
a pattern for the calibration run.

Best regards,

Ricardo.

El 14/09/2010 10:41, Alexander Dierlamm escribió:
> Hi
>
> Is there a way to select single channels (or a pattern) for the
> calibration pulses in a calibration run? I found in the Beetle manual
> something about a TpSelect register. Does this do what I want? Can the
> board control this register?
> What do I have to do to use it?
>
> Thanks,
> Alexander
>
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-- 
Ricardo Marco Hernández
Departamento de Electrónica
IFIC-Instituto de Física Corpuscular
Edificio Institutos de Investigación
Apartado de Correos 22085
46071 Valencia-Spain.
Tel:+34963543699
Website: http://ific.uv.es/