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/* SPU HLSW V10.0 - WHAT'S NEW !!

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/* Project: 	HSO/PACS, SPU HLSW

/* Contact:	spuhlsw@prip.tuwien.ac.at 

/* Date:	19-05-2004

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SPU HLSW 10.0 is positioned as an upgrade of SPU HLSW 10.0, containing the following new features:

* Glitch detection is optional in photometry (40 Hz rate).

* Arithmetic Coding is no used in photometry for CPU workload reasons.

* Validity flag check is disactivated in photometry.



This will be explained in the specific sections that follow.



The required Decompression SW version is:



- Decompress10 (Ground Decompression Software in Java) The SPU HLSW Development Team.





Glitch detection is optional in photometry (40 Hz rate)

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The user may now choose via parameter (write detector constant in photometry) if on-board glitch detection has to be performed. In the default state, the glitch detection is not used. When the glitch detection option is chosen, the software counts the possible radiation hits according to a certain threshold (commandable parameter). The glitch are not removed on-board. 



Arithmetic Coding is no used in photometry for CPU workload reasons

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The required compression ratio is already achieved by the Rzip algorithm. Therefore, arirthmetic encoding is not used in the lossless compression to the critical CPU workload for blue SPU in photometry.



Validity flag check is disactivated in photometry

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Actually, all frames are considered valid while reduction in photometry. Therefore, the validity flag in the photometry DEC/MEC header is no more checked in this software version to save CPU power





The following c/h files has been changed since HLSW version 9.0:



- average.c

- genspu.h

- llc.c

- supervs.c

- write.c

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