摘要
DDS(直接数字频率合成,direct digital frequency synthesis)是一种全数字化设计信号发生器的方法。基于PSOC(programming system on chip)芯片技术,以Creator集成环境作为设计开发平台,实现DDS信号发生器各个模块的功能。根据DDS的结构和原理,推导得到参考频率与输出频率间的关系。利用Creator提供的固件元件,给出了元件的属性配置和使用方法。该设计充分体现了PSOC集成度高,图形化编程在嵌入式系统设计中的优势。
DDS（Direct Digital Synthesizer）is a fully digitized resolution to design the signal generator.Based on PSOC（programming system on chip）technology,the functions of each module in DDS signal generator have been implemented with the IDE—PSoC Creator—as the development platform.According to the structure and principles of DDS,the relationship between the reference frequency and the output frequency has been deduced.Besides,with the help of firmware components provided by Creator,the configuration for properties and the using mode are given.This design fully demonstrates the advantage of high integration level and graphical programming method in embedded system design.
出处
《电测与仪表》
北大核心
2012年第3期85-88,共4页
Electrical Measurement & Instrumentation
基金
国家自然科学基金资助项目(61170244)
