使用定时器Timer5，设定44B0定时器Timer5工作在中断方式,在Micetek板的led上依次循环显示10进制数9，8，……,0,每隔1秒,更新显示一个数字-Timer5 use timer set 44B0 Timer5 timer interruption in work, Micetek plate in the cycle were led on the 10-band show a few 9, 8, ..., 0, every one seconds, updated figures show a