Multi-host arbitration method and device and readable storage medium

Abstract

The invention discloses a multi-host arbitration method and device and a readable storage medium, and belongs to the technical field of communication. The method comprises the steps: under the condition that a first host uses a serial data line of a bus to conduct data transmission, generating a first clock signal of the first host, the duration time of a first high-level signal in the first clock signal being larger than the duration time of a second high-level signal, the first high-level signal corresponding to a first bit of a byte in data transmitted by the first host, and the second high-level signal corresponding to a bit except the first bit in the byte; and in the duration of the first high-level signal, if it is detected that the data sent by the second host to the serial data line is the data of the repeated start bit or stop bit and the level signal of the serial data line is matched with the data sent by the second host, controlling the first host to stop transmitting the data; and controlling the second host to retransmit the data or stop transmitting the data, so that the error rate of the bus is reduced.

Description

technical field [0001] The present application belongs to the technical field of communication, and in particular relates to a multi-host arbitration method, device and readable storage medium. Background technique [0002] The integrated circuit (Inter-Integrated Circuit, referred to as I2C) bus is a two-wire serial bus that allows multi-host access. ) line transfers information between devices connected to the bus. It is a special form of synchronous communication. It has the advantages of less interface lines, simple control methods, small device packaging, and high communication speed. It has become widely used in the field of microelectronics communication control. A bus standard. Since the I2C bus does not have any customized priority, and there is no central master to set the priority, the I2C bus needs to achieve priority arbitration through competition among different masters. [0003] In the prior art, when a host is using the I2C bus to transmit data, and anothe...

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Problems solved by technology

[0004] The purpose of the embodiment of the present application is to provide a multi-master arbitration method, device and readable storage medium, which can solve the possibility of the level transition of the serial data line of the existing I2C bus and the level transition of the serial clock line At the same time, the problem that the I2C bus may go wrong

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