EASY5509 XP控制实验代码。则可看到板上发光LED L12开始闪烁，用户可根据自己想要的结果，来改变代码得到自己想要的闪烁时间。-EASY5509 XP control experiment code. You can see the board light-emitting LED L12 flashes, the user can according to their desired results, to change the code to get what they want

EASY5509 定时器实验 可看到板上发光LED L12开始闪烁闪烁。-EASY5509 timer experiment can be seen on-board light-emitting LED L12 flashes flashing.