Manufacturing method of PCI Express data collection card
A technology of data acquisition card and production method, which is applied in the input/output process of data processing, electrical digital data processing, instruments, etc., and can solve the problems of few processing channels, no external analog and digital channels, high cost, etc.
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[0007] In the following detailed description, specific details are described in order to provide a thorough understanding of the present invention. Those skilled in the art will recognize, however, that the invention may be practiced with other similar details.
[0008] The invention is composed of A / D conversion module, digital signal processing module, RAM and PCI Express interface module. The external analog signal is converted by the A / D conversion module to obtain a digital signal, and the digital signal is stored in the memory RAM through the digital signal processing module; the external digital signal is directly handed over to the digital signal processing module and stored in the memory RAM, and then The required results are handed over to the computer for processing via the PCI Express bus. Due to the high-speed data transmission capability of PCI Express, the RAM used in this system can be very small and only needs to be used as a data cache.
[0009] The inventi...
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