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STM32中基于DMA的频率信号采集
资料介绍
以意法半导体的STM32F4系列单片机为例,针对嵌入式实时系统实现了一种基于DMA的频率信号采集方法。该方法与周期任务配合后不用中断CPU,也不需要配合外部可编程逻辑芯片,就能实现频率信号采集,且可采集的频率信号范围较宽,更适合在资源较少的实时系统中使用,可以降低系统成本,极大地提高系统的运行效率。同时试验表明,该方法具有很高的精度,可以广泛应用于实时控制系统。
Realized a method to acquire frequency signal based on DMA for embedded real-time systems,using STM32F4.In cooperation with periodic task,this method can acquire frequency signal without interrupting the CPU or using FPGA.This method can acquire a wide range of frequency signal,fit for real-time systems with less resource,reduce the system cost,improve the efficiency of the system.Test shows that this method has high precision and can be widely used for real-time control systems.
部分文件列表
文件名 | 大小 |
STM32中基于DMA的频率信号采集.pdf | 4M |
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