电子钟C51(包含PCB与KEIL代码)

上传者: klqulei123 | 上传时间: 2023-01-14 18:06:30 | 文件大小: 1.69MB | 文件类型: RAR
一、 题目及功能要求 1. 制作一个电子日历时钟,使用汇编语言进行软件编程 2. 实现功能 (1) 显示北京时间并能校准 (2) 时、分、秒之间以及年、月、日之间以小数点隔开 (3) 显示公历日期并能校准,能够自动识别“闰年”以及“大月、小月” (4) 运动秒表,能够后台计时,秒表精确到0.05S (5) 闹钟功能,有闹钟开关,并能显示当前闹钟是否开启 (6) 整点报时提醒 二、 硬件方案 1. AT89S52最小系统 2. 显示电路采用动态扫描驱动电路,AT89S52的P0口连接74LS244总线驱动器,输出信号利用三极管8550进行放大,通过P1口对数码管进行段选扫描,AT89S52的P1.2~P1.7口对数码管进行位选扫描 3. 两个按键开关,分别接AT89S52的两个外部中断引脚 4. AT89S52的P2.0口输出经三极管9012放大,驱动有源蜂鸣器发声

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