摘要
为了满足目前对数据处理速度的需求,设计了一种基于FPGA+DDS的控制系统。根据AD9910的特点设计了控制系统的硬件部分,详细阐述了电源、地和滤波器的设计。设计了FPGA的软件控制流程,给出了流程图和关键部分的例程,并对DDS AD9910各个控制寄存器的设置与时序进行详细说明,最后给出了实验结果。实验结果证明输出波形质量高、效果好。对于频率源的设计与实现具有工程实践意义。
In order to meet the demands of data processing speed, a kind of control system based on FPGA＋DDS was designed. In the paper, hardware of the control system was designed based on the characteristic of AD9910 and the design of the power, ground and filter was described particularly. The software control flow of FPGA was designed and the correlative software examples were given. It described the setting of each control-register and require of timing of DDS AD9910 in detail. At last, the test result was given. The result proves that the wave is high quality and good effct. It will be with realistic meaning and usable value in the design and implement of frequency synthesis source.
出处
《电子设计工程》
2011年第2期150-153,共4页
Electronic Design Engineering
基金
国家重大专项(2010ZX03006-002)
