摘要
介绍了一种基于现场可编程门阵列的嵌入式高能工业CT同步控制系统。该系统将现场可编程门阵列作为系统时序控制的核心,其内部集成了UART、指令解码、LCD显示、EEPROM读写和同步时序产生等模块。系统采用有限状态机设计了指令解码模块,具有良好的可扩展性。同时,设计了基于查找表结构的频率计数值产生模块,提高了系统处理速度,减少了逻辑资源的占用。最后,采用VC++设计了控制软件,并通过实验得到了清晰的图像数据。
An embedded synchronization system based on FPGA for high energy industry CT is introduced.FPGA is the main unit of the system,including UART,decoding module,LCD module,reading/writing EEPROM module,synchronization timing module,and so on.Decoding module is designed with finite state machine,and has good expansibility.Look-up table is adopted in the counter of frequency module to increase processing speed and decrease resource consumption.The control software is designed by VC++,and high quality images have been acquired through experiments.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2011年第9期2499-2502,共4页
High Power Laser and Particle Beams
基金
国防科技基础研究基金项目
关键词
高能工业CT
同步系统
现场可编程门阵列
查找表
high energy industry CT
synchronization system
field programmable gate array
look-up table