Peripheral-component interface express (PCIE)-based multi-channel data acquisition unit
A data acquisition and multi-channel technology, applied in data acquisition and recording, electrical digital data processing, instruments, etc., to reduce transmission pressure, facilitate design, and protect integrity
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[0021] First, the PCIE interface used in the present invention will be described. The PCIE interface can realize high-speed data transmission and is a popular data interface in the current personal computer motherboard. The full name of the PCIE interface is PCI Express, which adopts the current popular point-to-point serial connection method in the industry. Compared with the PCI interface and the shared parallel architecture of the earlier computer bus, each device has its own dedicated connection and does not need to connect to the entire bus. Requesting bandwidth can increase the data transfer rate to a very high rate, reaching the high bandwidth that the PCI interface cannot provide. Moreover, compared with the traditional PCI bus that can only realize one-way transmission in a single time period, the dual-simplex connection of PCIE can provide higher transmission rate and quality. The interface of PCIE varies according to the bus bit width, including X1, X4, X8 and X16 ...
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