文件名称:fenxiyushejki
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（一）要求：用PROTEUS画出原理图和PCB图，并完成下列任务：
⑴ 用4只LED数码管输出显示时和分。
⑵ 可通过按键设置闹钟功能，且停闹无须手工操作。
⑶ 可通过按键设置分校时。
(4) 写出详细的设计报告。
(5) 给出电路的原理图、PCB图和源程序。
（二）优秀要求：根据PCB图制作PCB板，并焊接元件调试
-(A) requires: The PROTEUS draw schematic and PCB plans and complete the following tasks: ⑴ with four LED digital tube display and sub output. ⑵ can set the alarm button, and stop trouble without manually. ⑶ by pressing a button when setting campus. (4) write a detailed design report. (5) gives the circuit schematic, PCB diagrams and source code. (B) of the outstanding requirements: According to the PCB Mapping PCB, and soldering device debugging
⑴ 用4只LED数码管输出显示时和分。
⑵ 可通过按键设置闹钟功能，且停闹无须手工操作。
⑶ 可通过按键设置分校时。
(4) 写出详细的设计报告。
(5) 给出电路的原理图、PCB图和源程序。
（二）优秀要求：根据PCB图制作PCB板，并焊接元件调试
-(A) requires: The PROTEUS draw schematic and PCB plans and complete the following tasks: ⑴ with four LED digital tube display and sub output. ⑵ can set the alarm button, and stop trouble without manually. ⑶ by pressing a button when setting campus. (4) write a detailed design report. (5) gives the circuit schematic, PCB diagrams and source code. (B) of the outstanding requirements: According to the PCB Mapping PCB, and soldering device debugging
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数字钟电路的分析与设计.doc