CAJ | 학술논문

为满足工业CT锥束扫描方式数据传输的高速高可靠性要求，设计出基于FPGA与USB2．0的数据采集系统。系统选取DDC264作为模数转换芯片。主控芯片FPGA控制数据采集的时序并缓存数据。 USB2．0接口芯片CY7C68013A工作在Slave FIFO模式，将数据上传给PC机，用于以后的图像重建。系统软件设计主要包括FPGA程序设计与上位机程序设计。 FPGA程序最后转换为数字硬件电路，使用Verilog HDL语言编写，上位机程序提供人机交互界面，使用C＃语言编写。该设计的采集系统适合在多通道的X射线工业CT中应用。
위만족공업CT추속소묘방식수거전수적고속고가고성요구，설계출기우FPGA여USB2．0적수거채집계통。계통선취DDC264작위모수전환심편。주공심편FPGA공제수거채집적시서병완존수거。 USB2．0접구심편CY7C68013A공작재Slave FIFO모식，장수거상전급PC궤，용우이후적도상중건。계통연건설계주요포괄FPGA정서설계여상위궤정서설계。 FPGA정서최후전환위수자경건전로，사용Verilog HDL어언편사，상위궤정서제공인궤교호계면，사용C＃어언편사。해설계적채집계통괄합재다통도적X사선공업CT중응용。
In order to facilitate the requirements of high speed and reliability of data transmission for cone beam industrial computed tomography (CBCT), a data transmission system based on FPGA and USB2.0 was de-signed .In this system , DDC264 is the modulus conversion chip and FPGA as the main controller controls data acquisition sequence and then caches data .USB2.0 CY7C68013A works with Slave FIFO mode, sending the data to host computer for image re -construction .The designed software of this system mainly based on FPGA and application program .FPGA program was converted to a digital circuit finally , written by Verilog HDL lan-guage .The human-computer interface of this PC program was written by C#language .This system can works in multi channels X-ray industrial computed tomography .