3 中心控制模块··············································4
三、软件设计······················································5
1 控制模块程序设计··········································6
2 显示译码程序设计··········································6
3 分频模块程序设计··········································6
4 按键去抖程序设计··········································6
四、系统仿真测试··················································7
1 控制模块仿真··············································7
2 显示译码模块仿真··········································9
3 按键去抖模块仿真··········································9
4 分频模块仿真··············································9
附录一 使用说明··················································10
附录二 电路原理图················································10
附录三 程序清单··················································10
一、系统设计
1、设计要求
1．洗衣机的状态为待机 5s→正转 60s→待机 5s→反转 60s→，并用 3 个
LED 灯和 7 段显示器分别表示其工作状态和显示相应工作状态下的时间。
2．可自行设定洗衣机的循环次数，这里设置最大的循环次数为 15 次。
3．具有紧急情况的处理功能。当发生紧急情况时，立即转入待机状态，紧
急情况解除后，继续执行后续步骤；
4．洗衣机设定循环次数递减到零时立即报警，以表示洗衣机设定的循环次
数已经结束
2、总体设计方案
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