基于STC系列单片机的开发板设计教程方案.doc

STC12系列单片机开发板设计 摘 要 单片机自从70年代出现以后迅速发展起来，目前功能更加完善，广泛用于各种控制系统中。开发板以某一单片机为控制核心，集成一些基本硬件模块，可以作为主控模块在各种设备中实现控制功能，也可以用作实验板供初学者练习实践，使用方便，能加快产品开发速度。对自动化专业的学生来说，拥有一块单片机开发板，不管是用来开发产品或学习单片机都非常必要。所以，我设计了一个基于STC12C5410AD单片机的开发板。 本文以STC12C5410AD单片机为控制芯片，设计了一个开发板最小系统，主要包括电源模块、DS1302时钟模块、矩阵键盘和独立键盘模块、LCD1206和12864液晶显示模块、数码管显示模块、步进电机模块、RS232串行通信模块、DS18B20温度检测模块及存储器扩展模块，同时编写了相应的软件程序。 关键词：单片机，开发板，STC12C5410AD  Design of Development Board Based on STC12 Series MCU ABSRACT Single chip microcomputer has been developed rapidly since the 1970s, at present, its function is more perfect, and it is widely used in various control systems. Development board use a single chip processor as the core, integrate some basic hardware modules, can be used as a main control module to control functions in a variety of devices, can also be used as the experimental plate for beginners to practice exercises, easy to use, can accelerate product development.For automation professional students, having a microcontroller development board, whether to develop products or learn microcontroller, is very necessary. So, I designed a development board based on STC12C5410AD MCU. This paper designed a development board minimum system based on STC12C5410AD microcontroller, mainly including power supply module , DS1302 clock module, matrix keyboard and independent keyboard module, LCD1206 and 12864 liquid crystal display module, digital tube display module, stepper motor module, RS232 serial communication module, DS18B20 temperature detection module and memory expansion module, also write the corresponding software program. KEY WORDS: Single Chip Microcomputer, Development Board, STC12C5410AD 目　录 前　言 1 第1章　系统方案 2 1.1总体设计方案 2 1.2设计原则 2 第2章 硬件电路设计 4 2.1硬件整体结构框图 4 2.2硬件电路设计 5 2.2.1 STC12C5410AD单片机主控制模块 5 2.2.2 键盘电路设计 7 2.2.3 DS1302时钟模块 8 2.2.4 测温模块 10 2.2.5 RS232串行通信模块 11 2.2.6 显示模块 12 2.2.7 步进电机模块 17 2.2.8 存储器扩展模块 17 第3章 软件设计 19 3.1 整体程序设计 19 3.2 各模块程序设计 19 3.2.1 键盘模块程序设计 19 3.2.2 DS1302时钟模块程序设计