一．基于51单片机制作的数字钟QQ：415264859有问题可以问我。本程序保证正确。近期还要上传另外的关于51单片机毕业设计程序和原理图。
1设计任务
⑴时间显示上电后系统自动进入时钟显示从000000开始计时此时可以设定当前时间⑵时间调整：按下k1，k2，k3键可以顺序设置秒、分、时并在相应数码管上显示设置值直至6位设置完毕。
2数字钟原理图
f42数字钟元件清单
43数字钟源程序
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