通过对定时器输出比较功能的应用和S12单片机LED管脚联合，产生精准十秒一个循环的LED流水，对于LED点亮机制，流水如何实现以及定时器如何设置都有着很高的学习应用价值。(The foot joint output compare function application of the timer and the S12 microcontroller LED, to produce accurate ten seconds a circulating water LED, for the LE