【正文】 CAN 網(wǎng)絡(luò)通訊實(shí)驗(yàn)板課程設(shè)計(jì) 目 錄 1 前言 .................................................................................................................. 1 2 系統(tǒng)設(shè)計(jì) .......................................................................................................... 2 硬件設(shè)計(jì) ...................................................................................................... 2 硬件方案比較 ........................................................................................ 2 硬件方案論證 ........................................................................................ 3 硬件方案選擇 ........................................................................................ 4 硬件設(shè)計(jì) ....................................................................................................... 4 軟件設(shè)計(jì)方案 ........................................................................................... 7 3 系統(tǒng)硬件設(shè)計(jì) ................................................................................................... 8 CAN 總線介紹 ........................................................................................... 8 從站 CAN 總線接口電路 ........................................................................... 8 硬件模塊說明 .............................................................................................. 9 CAN 電路接線 .......................................................................................... 10 CAN 總線控制器 SJA1000....................................................................... 10 CAN 控制器接口 PCA82C250................................................................. 10 4 系統(tǒng)軟件設(shè)計(jì) ................................................................................................. 11 程序流程圖 ................................................................................................. 11 主程序流程圖 .......................................................................................11 初始化子程序流程圖 ...........................................................................11 發(fā)送數(shù)據(jù)子程序流程圖 ..................................................................... 12 接收數(shù)據(jù)子程序流程圖 ..................................................................... 13 軟件實(shí)現(xiàn)過程 ............................................................................................ 13 核心源程序 ................................................................................................. 15 5 系統(tǒng)調(diào)試 ......................................................................................................... 21 PC 機(jī)與下位機(jī)的通訊調(diào)試 ...................................................................... 21 CAN 總線調(diào)試 .......................................................................................... 21 單片機(jī)最小系統(tǒng)電路的調(diào)試 .................................................................... 21 綜合調(diào)試 .................................................................................................... 22 最終實(shí)現(xiàn)效果 ............................................................................................ 22 測試儀器 ................................................................................................... 22 6 結(jié)果分析及心得體會(huì) ..................................................................................... 23 結(jié)果分析 .................................................................................................... 23 心得體會(huì) .................................................................................................... 23 CAN 總線的其他應(yīng)用 ....................................................................... 23 7 參考文獻(xiàn) ........................................................................................................ 25 附錄：系統(tǒng)設(shè)計(jì)原理圖 ...................................................................................... 26