摘要
本文主要介绍了系统的工作原理,并给出了系统的硬件电路及软件设计。该数据采集系统以SPI总线技术为基础,以P89V51RD2为控制核心,对低频缓变信号进行模/数转换,存储并进行处理、显示,实现了灵活、实时、低成本的特点,在低频缓变信号领域展现了很好的应用前景。
The paper mainly introduces the working principle of system, and gives the hardware circuit and software design. In the data collecting system based on SPI bus, the low-frequency analogical signals are converted digital signals, then the results are stored, processed and displayed, the system has the features of flexible, real-time and low-costing, and shows good application prospecting in low-frequency area.
出处
《机床电器》
2008年第1期5-8,共4页
Machine Tool Electric Apparatus
关键词
数据采集
SPI总线
低频缓变信号
data collecting
SPI bus
low-frequency and slow-changing signals
