基于小型操作系统RTX51-Tiny设计实现的无线终端

为了使分布在不同位置的现场控制器联系在一起,达到更广区域的监视和控制,本文介绍了一种使用小型多任务实时操作系统RTX51-Tiny开发的无线控制终端,通信模块使用了nRF401芯片,它与微控制器相连的部分只是简单的串口,此模块用来与下位机无线通信实现数据交换。本文描述了硬件部分和软件部的设计过程,给出了硬件电路图、软件程序框图、部分串口通信程序。此系统具有测点多、便于扩展、抗干扰性强等优点,并通过试验取得了良好效果,为构建高性能的实时数据平台起到了借鉴作用。

Design and implementation of a wireless terminal based on RTX51-Tiny

To connect control equipment located at different places for remote monitoring and control,this paper mainly describes a wireless terminal design based on RTX51-Tiny,which is a miniature,multitasking and real-time operating system.The nRF401 based wireless communication module is developed,and it offers the microcontroller a simple serial port interface.This module is used to realize wireless communication between slave computer and single chip computer to with data exchanged.Both hardware and software design are discussed.The hardware circuit,communication protocol,program flowchart and part serial communication program are also given.It has many advantages such as abundant measuring points,easy to expand,and high interference immunity;and its effect is testified by experiments,which will set a good example for developing a real-time data platform with high performance.