基于CPLD的数据远程传输接收端逻辑控制设计

针对自主研发的脉冲辐射剂量探测系统,首先介绍了其光纤远程实时传输链路的组成.然后在分析数据接收单元电路结构和主要信号特点的基础上,设计并实现了基于CPLD的数据接收与上传的逻辑控制.CPLD一方面要从解码芯片接收并识别数据和同步信号,对数据包进行传输扩展,另一方面则要完成对USB接口模块数据传输的控制.辐射探测系统的整体测试与应用验证了CPLD逻辑控制电路设计的正确性.

Design of Logic Control for a Remote Data Transmission Receiver Based on CPLD

According to a self-designed pulsed radiation dose detection system,firstly,the optical fiber remote real time transmission link is introduced.Then,based on the analysis of the circuit structure of data receiving unit and the main signal characteristics,the logic control of data receiving and uploading based on CPLD is designed and implemented.On one hand,the CPLD chip receives and distinguishes data and the synchronization signal from a decoding chip,and handles with the data packet transmission extension.On the other hand,it is responsible for the USB data transmission logic control.The radiation detection system has been tested and applied,which verifies the correctness of the CPLD logic control circuit design.