Parameterizing an I/O interface for substantially writing unlimited data into a buffer and directly writing a determined amount of said data into a computer main memory

摘要

In a method and apparatus for data acquisition, parameterization of an interface is undertaken such that a substantially unlimited data stream is written into a buffer memory via an I/O interface, and such that at least one block of the data written into the buffer memory is written directly into a main memory of a processing computer via a DMA interface. The DMA quantity of the at least one data block written directly into the main memory is determined dependent on the data stream incoming at the I/O interface. As a result, both a continuous data stream with high data rate, as well as a small dataset of predetermined size, within a measurement can be read into the processing computer, respectively in real time.