摘要
采用NiosⅡ作为系统控制单元,辅以适当的软、硬件资源完成以FPGA为核心的等精度频率计设计。利用FP-GA对同步门的控制,使被测信号和标准信号在实际闸门时间内同步测量,实现了等精度频率测量,提高了测量精度。利用NiosⅡ技术开发的频率计具有硬件结构简单、性能稳定可靠的特点,并且可以灵活地实现定制应用。
The equal precision frequency meter with FPGA is designed by control unit Nios Ⅱ in the system,which is supported by appropriate software and hardware resources, the system controls the synchronous door through FPGA so that the measured signal and standard signal can be measured synchronously at the real gate- time, so the equal precision measurement is realized and precision is improved. The frequency meter system based on Nios Ⅱ technology has features such as simplified hardware structure,stable and reliable performance,it can be achieved at custommade applications flexibly.
出处
《现代电子技术》
2010年第5期84-85,88,共3页
Modern Electronics Technique
