【導(dǎo)讀】系統(tǒng)實(shí)現(xiàn)按鍵輸入數(shù)據(jù)保存至E2PROM后,可通過(guò)USB接口傳送至上位機(jī)。通過(guò)對(duì)系統(tǒng)的仿真及實(shí)物調(diào)試,完成了系統(tǒng)設(shè)計(jì),實(shí)現(xiàn)了課程設(shè)計(jì)的要求。USB接口芯片集成了MCU·················2. 2.系統(tǒng)設(shè)計(jì)原理·························3. 3.單元模塊設(shè)計(jì)·························4. USB硬件電路設(shè)計(jì)·······················4. 單片機(jī)最小系統(tǒng)模塊···················5