Hardware Design Of Data Acquisition Module Based On USB3.0

The data acquisition module is a very common test and measurement instruments, which based on USB data acquisition module, portable, plug and play advantages of wide application and promotion. In the past most of the products based on USB2.0 interface design, with the rapid development of electronic technology, now the USB3.0 interface began to spread, So a research based on USB3.0 interface of data acquisition modules on the domestic market has a certain significance.This paper introduce a data acquisition module hardware system design based on USB3.0 interface. Focus on the design of data acquisition and waveform generator, USB3.0 platform and how to achieve high-speed data interface design based on the USB3.0.Specific contents of this paper are as follows:1.Data acquisition and storage and control circuit design. Data acquisition module converts the analog signal into a digital signal to be measured. After processing control module finally stored in the memory. In this article, data collection and storage and control circuit is implemented by FPGA.2.Arbitrary waveform generator design. The waveform data is written to memory through the USB interface, and then through the FPGA design DDS, through d/a converter to generate the waveform, finally through the signal conditioning channel output waveform of the user need.3.USB3.0 interface circuit design. Introducing use CYUSB3014 chip implement USB3.0 interface design, and discussed two configurations of the interface, finally focuses on how to use GPIF II to complete the high-speed data read.After debugging and testing, USB3.0 data acquisition module reached the design requirements to achieve the collection and storage of data, and arbitrary waveform generator module can normally produce 0.1Hz ~ 20 MHz waveform ultimately measured USB3.0 interface real-time data Transmission rate up to 100 M.