Real-time control software design mechanism separating time from function

Because of the request of both function and time, the design of real-time control software become complex. This paper discusses a real-time control software design method based on time and function separating mechanism, which constructs two kind of pseudo-code :"function code" and "scheduling code", accompany with two executing engine - function machine and scheduling machine. We introduce the instruction of them and finally give an example program which is based on time and function separating mechanism.