Keil编辑器自带的内核的配置文件，需要在设置Target时勾选RTX内核，即可以使用多任务系统，可以满足简单的多任务需要，代码量小，功能够用。-Keil editor that comes with the kernel configuration file, you need to check the RTX kernel when setting Target, multi-tasking system that can be used to meet the needs of a simple multi-tasking, a small amount of code, functional enough.