摘要
电子设备系统时常要进行电源检测,判断电源好坏,但较大系统的电源种类较多,并且分布在各分机,距离比较远,统一引线到检测电路板需要大量的导线,增加了分机间连接的复杂度。针对存在的问题,本文提出了一种解决方法。采用单总线(One-Wire)芯片,使用单根导线连接各分机,运用NXP单片机通过这根导线把各分机的电源检测结果统一送回单片机,由单片机通过RS-232串行总线传送到主控计算机进行显示。
Electronic equipment system often have to power detection,to determine the power is good or bad,but the larger system has kinds of power types,and distributed in the extension,the distance is far,uniform lead to the detection circuit board requires a large number of wires,increase the complexity of the connection between devices.Based on this consideration,this paper presents a solution:use the one-wire protocol chip,use a single wire to connect the devices,and the NXP microcontroller through the wire to obtain the power test results and through the RS-232 serial bus to send it to the host computer to display.
作者
董鹏琳
罗胤
张德平
DONG Penglin;LUO Yin;ZHANG Deping(Liuzhou Vocational&Technical College,Liuzhou Guangxi 545006)
出处
《河南科技》
2021年第19期40-43,共4页
Henan Science and Technology
基金
2020年度广西高校中青年教师基础能力提升项目“基于PUF的无线体域网安全技术研究”(2020KY31022)。
关键词
电源检测
单线协议
NXP单片机
power detection
one-wire protocol
NXP microcontroller
