一种免费开源的事实多任务操作系统CoOS，胆小精悍，与UcOSII各有千秋，本例是移植在NXP LPC17xx系列下的CoOS-The fact that a free, open-source multi-tasking operating system CoOS, lean and timid, and UcOSII different, in this case is a transfer in the NXP LPC17xx series under CoOS