【正文】 碼管 include include include /******************************************************************** * function : sbit 及 相應(yīng)變量的定義 * explain : * add : ********************************************************************/ sbit LS138_A = P2^5 。 } 流水燈模式選擇 include include include include /******************************************************************** * function : sbit * explain : 開關(guān)位定義 * add : ********************************************************************/ sbit Key2 = P3^3 。 uchar yiwei = 0x40 。 // fe 是 1111 1110 P2 = temp 。 y)。 if( Key1 == 0 ) { count++。 delay_1ms(10)。在本課題的 設(shè)計(jì) 過程中，通過老師耐心的指導(dǎo)和 隊(duì)友 李曉穎 、 劉書全 的通力合作 ，受到很多的啟發(fā) ， 并學(xué)到許多單片機(jī)的理論實(shí)踐 知識(shí)。測(cè)試時(shí)一個(gè)數(shù)碼管有一段接觸不良，通過修補(bǔ)數(shù)碼管的排母得到解決。異步串行通信中，有 1+8+1 和 1+8+1+1 兩種幀格式，多機(jī)通信是特殊的通信方式。 數(shù)碼管內(nèi)部結(jié)構(gòu) 實(shí)驗(yàn)板使用的兩位一體的共陰極發(fā)光數(shù)碼管，其內(nèi)部引腳已經(jīng)連好 ，引腳如圖 4 所示（正面朝自己，小數(shù)點(diǎn)在下方）。 2. 學(xué)生根據(jù)課程設(shè)計(jì)的任務(wù)書，設(shè)計(jì)出合適的方案，制定焊接與調(diào)試步驟，進(jìn)行元器件的焊接。 關(guān)鍵詞： STC89C52，實(shí)驗(yàn)平臺(tái)，數(shù)碼管，流水燈 ，串口通信 I 52 series microcontroller prehensive experimental board development design ABSTRACT In this paper the design principle and implementation method on STC microcontroller experimental platform. This experiment is to design process as the main line, respectively from two aspects of hardware and software described the design process, from the hardware circuit of welding technology to realize the required function of software. This experiment platform is of low cost, small volume, high reliability, multifunction, low power consumption, convenient operation, etc. Design the report introduces the development process of the development board and related hardware design. Experimental plate STC89C52 microcontroller as the core controller, resource module mainly includes the buttons on the digital tube, LED module, module, LCD module, etc. Experiment board can be installed in the control system as the main control module control tasks, also can be used in college teaching, can do LED lights, buttons, digital tube, liquid crystal, such as most mon experiment, the operation is simple, costeffective, has certain practical value. KEYWORDS: STC89C52, prehensive experimental board, LCD, button, software and hardware bined with, and the program development design II 目 錄 摘 要 .................................................................................................................................. 目 錄 ................................................................................................................................ II 前 言 ................................................................................................................................ 0 第 1 章 系統(tǒng)概述 ............................................................................................................ 1 設(shè)計(jì)題目 ............................................................................................................ 1 設(shè)計(jì)目的 .................................................................................................. 1 設(shè)計(jì)內(nèi)容 .................................................................................................. 1 設(shè)計(jì)要求 .................................................................................................. 1 設(shè)計(jì)步驟 .................................................................................................. 1 第 2 章 整體設(shè)計(jì)方案 .................................................................................................... 2 開發(fā)板整體外觀 ................................................................................................ 2 整板電路 PROTUES 仿真電路 ........................................................................ 2 軟件功能描述 .................................................................................................... 3 仿真軟件 PROTUES 中的效果圖 .................................................................... 3 第 3 章 硬件電路設(shè)計(jì) .................................................................................................... 4 兩位一體共陰數(shù)碼管 ......................................................................................... 4 數(shù)碼管概述 .............................................................................................. 4 數(shù)碼管內(nèi)部結(jié)構(gòu) ...................................................................................... 4 兩位一體共陰數(shù)碼管和 74LS373 鎖存器接口電路 ............................. 5 LCD1602 液晶 .................................................................................................... 5 LCD1602 液晶簡(jiǎn)介 .................................................................................. 5 LCD1602 液晶引腳介紹 .......................................................................... 5 LCD1602 液晶外圍接口電路 .................................................................. 6 串口通信 ............................................................................................................ 7 串口通訊概述 .......................................................................................... 7 MAX232 接口電路 .................................................................................. 7 第 4 章 軟件設(shè)計(jì) ............................................................................................................ 8 程序整體流程圖 ................................................................................................. 8 程序清單 ............................................................................................................. 8 第 5 章 調(diào)試及故障分析 ................................................................................................ 9 焊接準(zhǔn)備階段元器件測(cè)試、電路原理圖故障分析 ........................................ 9 電路焊接過程中的故障分析 ............................................................................ 9 程序編寫過程中的故障分析 .............................................