基于STM32的新型信号发生器设计  

Design of New Signal Generator Based on STM32

作　　者：姜建国[1] 王梦谦 王海星[1] 

机构地区：[1]东北石油大学电气信息工程学院

出　　处：《化工自动化及仪表》2017年第3期273-276,共4页Control and Instruments in Chemical Industry

摘　　要：给出信号发生器的硬件组成,阐述DDS芯片AD9833的工作原理,SPI通信过程,正弦波、三角波、方波3种信号的软件实现方法。搭建控制平台验证信号发生器的性能,结果表明:该信号发生器信号输出高频噪声少、频率精度高。The hardware structure of the signal generator was presented and the working principle of AD9833 chip （DDS） was expounded, including the SPI communication process and the software implementation of sine signals, triangle signals and square wave signals. Verifying the performance of waveform generator on the con- trol platform established shows that, this signal generator has less high-frequency noise in signals output and higher frequency accuracy.

关 键 词：信号发生器 STM32 DDS芯片AD9833 C语言 

分 类 号：TH89[机械工程—仪器科学与技术]