本设计通过按S3、S4和S5功能键实现对时间的调整。

其中，S3键为小时/分钟调整选择键；S4键为加1键；S5键为减1键。

时间调整的具体实现过程如下：

S3键功能是判断是否进行时间调整。当按一次S3键后，进入小时调整。再通过按S4、S5键进行对小时的具体调整；当按二次S3键后，进入分钟调整。再通过按S4、S5键进行对分钟的具体调整，直至和当前北京时间一直为止。

然后根据按下S2功能键的情况判断是否显示时间。若是，则将当前时间数据送8155经LED显示器显示。

进行传送。其优点是传送速度快，缺点是数据有多少位，就需要多少根传输线，适合于近距离传输-adopted by the design of S3, S4 and S5 function keys to achieve the right time to adjust. Among them, S3 Key to hours / minutes adjustment selection key; S4 a key to the Canadian bond; S5 key to a reduced bond. Time to adjust to the realization process is as follows : S3 key function is to judge whether the time to adjust. When S3 according to a bond after entering the hour adjustment. Passed by the S4, S5 Key for hours on the specific adjustments; When the second by S3 Key, enter minute adjustments. Passed by the S4, S5 key for the specific right-minute adjustments, and until the current Beijing time has been so far. S2 according to press the function keys of the judgment showed. If so, the current time data will be sent to 8,155 by the LED display shows. Transmitted. The advantage is spe