篮球记分器

1.系统设计

本次实训的内容为设计一个篮球计分器。

1.1设计要求

按照题目要求独立设计系统所需电路，并完成硬件电路的制作及调试。

发挥部分：能够进行减分的操作。

1.2性能指标要求

（1）结合硬件能够正常计分；

（2）能够正常显示分值；

（3）分值满100后会有灯亮；

（4）能够正常修改工作模式；

（5）24秒倒计时；

（6）24秒倒计时能够自动复位；

（7）24秒倒计时结束时会有蜂鸣器报警。

-Basketball scoring device

1 System Design

The training content for the design of a basketball scoring device.

1.1 Design requirements

Accordance with the subject required for independent circuit design system, and complete the circuit of production and debugging hardware.

Play a part: the ability to reduce points of operation.

1.2 Performance requirements

　(1) combined with the hardware to the normal points　

(2) the normal display scores　

(3) will score at least 100 after the lights　

(4) to modify the normal operating mode　

(5) 24-second countdown　

(6) 24 second countdown to automatically reset　

(7) 24-second countdown will end buzzer alarm.