One Design of Communication Bridge for Profibus-DP Bus and CAN Bus

摘要

This paper introduces one kind of bus interface between Profibus-DP and CAN .It gives the detail of hardware design ,includes dual-port RAM, two CPU and field bus protocol controller chips SPC3 and SJA1000. The paper also describes the design of CAN node circuit, and data communication processing etc. This king of interface could implement basis data communication between these two field buses.