摘要
以微控制器和FPGA为核心,基于RTX51编写软件系统,结合必要的外围电路,完成正弦信号发生器的设计,该系统由红外控制模块、键盘输入模块、LCD显示模块,直接数字频率合成模块,信号调制模块组成,根据输入的频率字,能自动产生1kHz^10MHz的正弦波,实现了幅度调制(AM),频率调制(FM)以及二进制信号PSK、ASK等功能。
This paper designs the sinusoidal signal generator through developing software system based on RTX51,combing necessary peripheral circuit,and microcontroller and FPGA is its nucleus.The system is made of infrared ray controlling module,keyboard entry module,LCD showing module,digital frequency synthesizer module,and signal modulation module.Basing on the frequency of input signals,the system can generate sinusoidal with 1kHz to 10MHz,achieving AM,FM,and binary signal＇s PSK,ASK and so on.
出处
《信息技术》
2010年第10期31-33,37,共4页
Information Technology
