A fundamental data acquisition saving block

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2005

Autores

Loureiro, CFM (Autor) Outra; Martins, VMG (Autor) Outra; Clemencio, FMC (Autor) Outra; Correia, CMBA (Autor) Outra

Ata de Conferência Internacional

Título: 2005 IEEE Nuclear Science Symposium Conference Record, Vols 1-5

Páginas: 685-686

Nuclear Science Symposium/Medical Imaging Conference

Fajardo, PR, OCT 23-29, 2005

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 3 Citações

Outras Informações

ID Authenticus: P-000-72E

DOI: 10.1109/nssmic.2005.1596351

Abstract (EN): A general data acquisition architecture, allowing a clean conceptual separation of the fundamental blocks in a data acquisition setup, is presented. The approach taken surfaced from a study of several modern architectures and from experience acquired while developing an object-oriented programming solution for a previously developed high-speed architecture. This process of software development leaded naturally to a concept where a net separation between data transfer, and control and trigger signals, suggested a similar general decomposition of the data acquisition hardware, in such a way that the same fundamental hardware blocks can be used in several different configurations. In this paper we report on the strategy and results obtained while developing in VHDL such an important and fundamental unit of the data acquisition chain as the data acquisition saving block. The solution proposed for the data saving block, tested using field programmable gate arrays, implements pre- and post-trigger functionality, supports continuous data streams up to hundreds of MHz, has a large memory pool (hundreds of megabytes), and has an interface capable of providing, upon request, a block of data from a specified address without interfering with the data saving process.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 2