摘要
直接数字频率合成技术是一种新型的信号产生方法,是现代信号源的发展方向。该系统由FPGA控制模块、键盘、LED显示组成,结合DDS的结构和原理,采用SOPC和DDS技术,设计出具有频率设置功能的多波形信号发生器。以Altera公司的CycloneⅡ的核心器件EP2C35为例,NIOSⅡCPU通过读取按键的值,实现任意步进、不同波形的输出显示功能。
The direct digital frequency synthesis technology is a new kind of signal generation method and is a development direction of modern signal sources. The system consists of FPGA controller module, keyboard, LED display module. In combination with DDS strueture and principle, the multi-waveform signal generator which has a function of frequency setting was designed with SOPC and DDS technology. Taking the core device EP2C35 of ALTERA＇s Cyelone II as an example, NIOS Ⅱ CPLT can realize the arbitrary step and the output display of different waveforms by reading the key values.
出处
《现代电子技术》
2011年第1期107-109,共3页
Modern Electronics Technique
