NiosⅡ软核在数字式超声探伤系统中的应用

Application of NiosII Soft Processor in the Ultrasonic Flaw Detecting System

阐述了一种基于NiosⅡ软核处理器技术的数字式超声探伤系统设计方案,与传统数字式超声探伤系统进行了比较,讨论了数字式超声探伤系统的工作原理及NiosⅡ软核处理器设计过程。结合SOPC灵活配置的特点,定制了硬件系统。实验表明,将微处理器模块和信号采集处理模块集成到单片FPGA上,设计出的系统集成度高、稳定性好、扩展性强。

This paper describes an original design of ultrasonic flaw detecting system based on NIOSⅡ soft processor technology,and it is compared with traditional ultrasonic flaw detecting system.It particularly discusses the principle of ultrasonic flaw detecting system and the design course of NIOSⅡ soft processor.With flexibility enabled by SOPC Builder,it builds a NIOSⅡ hardware system.And it has been proved by the experiment that integrating the MCU module and the signal sampling and processing module on a single FPGA chip.So the performances such as integration,stability and expansibility have been improved much.