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基于单片机的数据采集系统在工业控制和实验室研究方面的应用相当广泛,模数转换是以单片机为核心的数据采集系统中关键环节之一。本文介绍了AT89S52单片机和串行A/D芯片TLC0834的主要特点,设计了基于AT89S52单片机和串行A/D芯片TLC0834接口电路并利用C语言进行了软件程序设计。该系统适用于多种数据采集场合,支持ISP技术,具有精度高、速度陕、体积小的特点。
Microcontroller-based data acquisition system in industrial control and laboratory research is widely used, analog-to-digital conversion is one of the key aspects of the data acquisition system with the microcontroller as the core. This article introduces the main features of the AT89S52 microcontroller and the serial A / D chip TLC0834, designs the TLC0834 interface circuit based on the AT89S52 microcontroller and serial A / D chip and software programming using C language. The system is suitable for a variety of data acquisition occasions, support for ISP technology, with high precision, speed Shaanxi, small size.