CY8C29666芯片的高精度频率测量系统设计  

Design of High Accuracy Frequency Measurement System Based on CY8C29666

作　　者：赵浩[1] 纪平鑫[1] 周加永[1] 李会营[1] 吕启元[1] 

机构地区：[1]西北机电工程研究所,咸阳712099

出　　处：《单片机与嵌入式系统应用》2015年第1期43-45,共3页Microcontrollers & Embedded Systems

摘　　要：针对目前脉冲频率测量中存在的频率范围窄、精度低等问题,提出了一种以PSoC芯片CY8C29666为核心的信号频率测量系统。设计中以改进的多周期同步测频法为理论基础,结合PSoC芯片集成度高、系统资源丰富、稳定抗干扰的优点,实现了对0.1Hz^10 MHz信号频率的高精度测量,并结合实验结果进行了精度分析。Aiming at the problems of narrow frequency range and low accuracy existing in pulse frequency measurement at present, a signal frequency measurement system based on the CY8C29666 is proposed. Based on the theory of the improved multi-cycle synchronous frequency measurement, combining with the advantages of PSoC chip such as high integration, abundant resources, stability and anti- interference,the system achieves high precision measurement of 0. 1 Hz- 10 MHz frequency signal. Combining with the experimental results, the measurement precision is analyzed.

关 键 词：PSOC 频率测量 多周期同步测频法 

分 类 号：TM935.1[电气工程—电力电子与电力传动]