基于PIC单片机的多路数据采集系统

Multi-channel data acquisition system based on microchip PIC

提出了一种以PIC16F877单片机作为核心器件的多路数据采集系统的设计和实现方法.该系统利用PIC单片机自身具有的8路10位A/D转换模块及多种输入输出端口,以最小的硬件开销,实现了对8路数据的循环采集、固定通道采集、实时处理及显示的功能.具有电路简单、精度高、功耗低、抗干扰能力强、通用性强的特点.

This article introduces the designing method of the multi-channel data acquisition system with PIC16F877 as its kernel processor chip.Based on the eight channel 10 bit A/D and various I/O ports of the microchip PIC,this system can realize collecting data of eight-channel circularly or collecting data of fixed channel as well as processing and displaying the data in real-time at the lowest hardware cost.The system has these merits such as simple hardware,higher precision and lower power.And it has the abilit...