Abstract: According to the static time triggered schedule of time trigged controller area network(TTCAN),this paper presents a time triggered schedule for controller area network(CAN)by the use of hardware periodical interrupt of micro controller,software programming technique,and the bit arbitration of CAN bus.And the evaluation experiments for bandwidth utilization and message error ratio are carried out.The results show that time triggered application and very high bandwidth utilization can be implemented with CAN 2.0 and hardware periodical interrupt of micro controller.The method is suitable for some applications in which much periodical data exchange and a few of non periodical messages are required,such as distributed data acquisition system.