文件名称:trafficlight
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1.带复位功能;
2.红灯亮30秒à红灯闪烁6秒(1秒灭-1秒亮)à绿灯亮30秒à黄灯亮6秒à(下一个循环);
3.分别用3个发光二极管代表红绿黄灯;
4.在一个数码管上显示倒计时;
5.时钟输入建议不要直接采用1Hz,而采用其它高频时钟,例如1KHz。
-1. With reset function 2. The red light flashes a red light 30 seconds à 6 seconds (1 second to eliminate second-liang-1) à 30 seconds the green light is bright yellow six seconds à à (a cycle) 3. 3, respectively on behalf of yellow red and green light-emitting diodes 4. in possession of a digital countdown display 5. clock input directly is not recommended the use of 1Hz, and the use of other high-frequency clock, for example, 1KHz.
2.红灯亮30秒à红灯闪烁6秒(1秒灭-1秒亮)à绿灯亮30秒à黄灯亮6秒à(下一个循环);
3.分别用3个发光二极管代表红绿黄灯;
4.在一个数码管上显示倒计时;
5.时钟输入建议不要直接采用1Hz,而采用其它高频时钟,例如1KHz。
-1. With reset function 2. The red light flashes a red light 30 seconds à 6 seconds (1 second to eliminate second-liang-1) à 30 seconds the green light is bright yellow six seconds à à (a cycle) 3. 3, respectively on behalf of yellow red and green light-emitting diodes 4. in possession of a digital countdown display 5. clock input directly is not recommended the use of 1Hz, and the use of other high-frequency clock, for example, 1KHz.
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trafficlight.doc