【正文】 ................................. 2 摘要 ................................................................................................................................................. 4 Abstract ........................................................................................................................................... 5 第一章 緒論 ................................................................................................................................... 6 課題的背景和意義 ........................................................................................................... 6 課題設(shè)計(jì)的思路簡介 ....................................................................................................... 6 設(shè)計(jì)任務(wù)及要求 ............................................................................................................... 7 第二章 系統(tǒng)結(jié)構(gòu)設(shè)計(jì) ................................................................................................................... 8 系統(tǒng)的總體設(shè)計(jì) ............................................................................................................... 8 各模塊的設(shè)計(jì) ................................................................................................................... 8 核心控制模塊的設(shè)計(jì) ............................................................................................ 8 光筆設(shè)計(jì) ................................................................................................................ 9 點(diǎn)陣屏設(shè)計(jì) ............................................................................................................ 9 LCD 顯示設(shè)計(jì) ....................................................................................................... 9 按鍵設(shè)計(jì) ............................................................................................................... 9 系統(tǒng)作用 ........................................................................................................................... 9 第三章 STM32 系統(tǒng) .................................................................................................................... 11 STM32 概述 .................................................................................................................... 11 STM32F103 功能概述 ................................................................................................... 11 主要特點(diǎn) ............................................................................................................. 11 引腳圖及功能概述 ............................................................................................. 12 主控模塊原理圖 ............................................................................................................ 13 第 四章 硬件設(shè)計(jì) ......................................................................................................................... 15 光筆的設(shè)計(jì) .................................................................................................................... 15 光敏三極管功能概述 ......................................................................................... 16 LM393 電壓比較器功能概述 ............................................................................. 17 32 X 32 LED 點(diǎn)陣的連接 .............................................................................................. 19 LED 點(diǎn)陣顯示屏概述 ......................................................................................... 20 32 X 32 LED 點(diǎn)陣的驅(qū)動(dòng)控制電路 .............................................................................. 21 74HC154 簡介 ..................................................................................................... 21 74LS273 簡介 ...................................................................................................... 23 S8550 三極管概述 ............................................................................................... 23 顯示部分設(shè)計(jì) ................................................................................................................. 24 1602A 液晶屏概述 .............................................................................................. 25 接口說明 .............................................................................................................. 26 原理簡圖 ............................................................................................................. 26 鍵盤的使用及設(shè)計(jì) ...............................