Method for realizing MDB bus protocol by embedded single-chip microcomputer and MDB device

The invention provides a method for realizing an MDB bus protocol by an embedded single-chip microcomputer and MDB equipment. The method comprises the steps that an application platform sends an instruction to the embedded single-chip microcomputer, the instruction comprises a mode instruction, the mode instruction is used for setting the working mode of the embedded single-chip microcomputer, and the working mode comprises a master mode and a slave mode; the embedded single-chip microcomputer responds to the instruction, the embedded single-chip microcomputer works according to the working mode, and when the working mode is a main mode, the embedded single-chip microcomputer actively manages an MDB bus and distributes the bus for use in a polling mode; and when the working mode is a slave mode, the application platform communicates with other MDB equipment through the embedded single-chip microcomputer. According to the invention, the embedded single-chip microcomputer realizes the MDB bus protocol, and the