The Hardware Designing of Protocol Conversion Based on DS80C320

Aiming at the equipment produced by different manufacturers,the difference of communication pro-tocol leads to the problem that devices couldn’t communicate with each other. The paper designed the hardware part of protocol conversion system which was composed of single-chip microcomputer system. It constructed the whole hardware frame and designed the circuit of communication protocol by using the interface communication of DS80C320 single-chip microcomputer,completing the data communication between different equipment. The design can convert shanghai nanzi protocol into standard Modbus protocol in order to improve the universality of the system.