A new communication model for multi-tasks in VxWorks

With the development of embedded Real- Time Operation System(RTOS), researches on how to improve the performance and efficiency of RTOS are hot nowadays. Big programs are often composed of several traffic modules while the communication between them has close concern with the system efficiency. In this paper, a new communication model for multi-tasks in VxWorks operation system is proposed which is based on UDP transmit mode and concept of virtual device. It overcomes the shortages of traditional communication theory and satisfies the real-time performance as well as system resource requirement. The paper analyses the principle, possibility and superiority of the model.