PCI bus multi-acquisition board card data synchronous acquisition method based on FIFO

The invention relates to a synchronous parallel data acquisition method of acquisition board cards, in particular to an FIFO (First In First Out)-based synchronous data acquisition method of PCI (Peripheral Component Interconnect) bus multi-acquisition board cards, which is used for solving the defe...

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Bibliographische Detailangaben
Hauptverfasser: MIN HUIJIE, ZHANG XIAOSONG, ZHOU YAQI, WANG ZHIHENG, LEI JIAJIE, CAO YIFAN, CHENG MING
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention relates to a synchronous parallel data acquisition method of acquisition board cards, in particular to an FIFO (First In First Out)-based synchronous data acquisition method of PCI (Peripheral Component Interconnect) bus multi-acquisition board cards, which is used for solving the defect that when the data of the PCI bus multi-acquisition board cards are synchronously acquired by utilizing flag bits of FIFO, the number of data acquired by a plurality of acquisition board cards of the same model is difficult to be equal. According to the PCI bus multi-acquisition-board-card data synchronous acquisition method based on the FIFO, the number of data in the FIFO of each PCI acquisition board card and the number of acquisition channels are subjected to remainder calculation when the first half-full mark arrives, and only the data of the remainder part is recorded, so that the phenomenon of data dislocation in the PCI acquisition board cards is avoided, and the error is only one sampling point. 本发明涉及采集