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.
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
关键词
PSOC
频率测量
多周期同步测频法
PSoC
frequency measurementi multi-cycle synchronous frequency measurement
