摘要本文研究的是作为探雷系统重要组成部分的通信与接口电路。为了实现电脑和多个雷场之间顺利完成信号传输，电路设计了多个和雷场连接的接口，这样就能同时对多个雷场进行扫描，加快了扫描的进度。而单片机则选择了宏晶科技生产的 STC12C5A60S2 系列单片机，该系列单片机是高速、低功耗、超强抗干扰的新一代8051单片机，信号传输速度是普通的 8-12 倍，这对传输雷场信号非常有利。同时本文对串口扩展也做了相应的研究和对比，由于有声音信号和雷场坐标信号，单片机串口显然不够用，这就要求扩展串口以便实现信号的传输。由于单片机和电脑、雷场之间传输需要的电平不同，这就需要一个电平转换的芯片，即MAX232，这样能使电路顺利工作。最后使用 Cadence软件画了原理图，用PADS软件实现了PCB 设计。64589
毕业论文关键词 雷场 单片机 串口 Cadence Pads
毕业设计说明书（论文）外文摘要
Title Mine detection simulation training system - communication interface circuit
Abstract This study as an important part of mine detection system communications and interface circuit. In order to achieve minefields between multiple computers and the successful completion of signal transmission, circuit design and minefields connect multiple interfaces, so you can simultaneously scan multiple minefields, to speed up the progress of the scan. The chip select STC production STC12C5A60S2 series microcontroller, the microcontroller is a high speed, low power consumption, a new generation of super anti-jamming 8051, the signal transmission speed is 8-12 times more common, which is transmitted minefields signal is very favorable. At the same time this paper also made the corresponding serial expansion of research and comparison, because sound signals and minefields coordinate signal, microcontroller serial obviously not enough, which requires extended serial signal transmission in order to achieve. As SCM and computer, minefields transferred between different desired level, which requires a level converter chip, which MAX232, so that the circuit can work smoothly. Finally use Cadence software drew a schematic diagram, using PADS PCB design software.
Keywords Minefields SCM Serial ports Cadence Pads
目录
1 绪论 1
1.1 地雷 1
1.2 探雷器介绍 1
2 探雷器及整体系统设计 2
2.1 探雷器结构 2
3 通信与接口电路硬件设计 4
3.1 STC12C5A60S2单片机介绍 4
3.2 通用异步串口扩展芯片GM8123 6
3.2.1 串口扩展方法与比较 6
3.2.2 GM8123功能描述与引脚说明 8
3.2.3 GM8123系统结构与工作模式 10
3.2.4 GM8123优点 13
3.3 MAX232芯片引脚分布与功能介绍 14
3.4 DB9串口引脚分布与功能介绍 15
3.4.1 RS232接口标准 15
3.4.2 DB9接口 17
3.4.3. DB25接口 STC12C5A60S2模拟探雷训练系统-通信接口电路+PCB电路:http://www.youerw.com/tongxin/lunwen_71862.html