File list (Check if you may need any files):
very_good_schematic_diagram_for_MCU51\课设.ddb
.....................................\来电显示.Ddb
.....................................\羚羊61板.DDB
.....................................\抢答器.ddb
.....................................\窃听器.ddb
.....................................\数字电压表.ddb
.....................................\数字钟11.DDB
.....................................\双1875立体声功放.ddb
.....................................\液晶.ddb
.....................................\正交信号源.DDB
.....................................\串行信号发生器.DDB
.....................................\电子琴.ddb
.....................................\电子小闹钟.ddb
.....................................\多串口模块.ddb
.....................................\键盘识别.ddb
very_good_schematic_diagram_for_MCU51