A SHARC DSP cluster as HERA-B DAQ building block

Author

Lüdemann, J. ; Ressing, D. ; Wurth, R. ; Zweizig, J.

Author_Institution

DESY, Hamburg, Germany

Volume

44

Issue

3

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

403

Lastpage

406

Abstract

The CP violation experiment HERA-B at DESY requires highly selective on-line filtering of data due to high interaction rates and low signal to background ratio. This demands a hierarchical trigger system and data acquisition with high bandwidth. A complete level of the trigger hierarchy and the DAQ chain can be built from a single unit type: a single slot 6U VME unit carrying six ADSP21060 (SHARC) DSPs. The six SHARCs communicate via the common bus or via their link ports, which are all accessible from the front panel. Up to 350 units will be used in the experiment. Prototype units have been built and are operating successfully

Keywords

data acquisition; detector circuits; digital signal processing chips; high energy physics instrumentation computing; nuclear electronics; system buses; trigger circuits; ADSP21060 DSPs; CP violation experiment; DESY; HERA-B DAQ building block; SHARC DSP cluster; common bus; hierarchical trigger system; high bandwidth data acquisition; high interaction rates; highly selective on-line data filtering; link ports; low signal to background ratio; single slot 6U VME unit; Control systems; Data acquisition; Detectors; Digital signal processing; Filtering; Hardware; Mesons; Production; Prototypes; Switches;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.603680

Filename

603680