Design of data transmission system for high-energy X-ray industrial CT

Aiming at the characteristics of high-energy X-ray industrial computerized tomography(CT), a data transmission system based on USB2.0 was developed. The system consists of a USB2.0 interface and a transmission control unit. The USB20 interface unit uses Cypress’s EZ-USB FX2-CY7C68013A chip, which is set as the slave FIFO interface model to transfer data to host computer by bulk transfer mode. The transmission control unit uses Altera’s Cyclone- EP1C6Q240C8N chip which defines buffer to receive the data from detecting part, generate logic control signals and timing sequence signals, and send the data to the endpoint buffer of USB. The data transmission system was tested well and can meet the requirements of high-energy X-ray industrial CT. Also it can expand easily and take up a few sys