在LCD屏幕上显示秒表计时，并利用按键控制秒表的开始与暂停及清零。同时LED灯呈跑马灯闪烁-Displayed on the LCD screen stopwatch timer, and stopwatch using buttons control the start and pause and clear. LED lights were also flashing marquees

针对嵌入式开发板上面的LED灯进行编程控制，实现LED灯的闪烁，开光。需要用到内核态函数，可以参考修改，实现各式各样的显示要求！-Development board for embedded LED lights above program control, the realization of LED flashing lights, the light. Needed core state function, can be edited to achieve a wide range of