A kind of arbitration method and system of i2c bus
A technology of bus arbitration and arbitration method, which is applied in the arbitration method and system field of I2C bus, can solve the problems of lowering the normal level, wasting bus resources, affecting bus stability, etc., and achieves increased speed, improved stability and quality, The effect of saving bus resources
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[0037] In order to make the technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.
[0038] An I2C bus arbitration method of the present invention is applied in network equipment, and the network equipment includes at least two main control devices. The I2C bus is equipped with a bus arbitration unit, and the bus arbitration unit is configured with a status register, and the status register defines a BUSY flag, a WAIT flag and an ERROR flag, wherein the BUSY flag is used to indicate that the I2C The bus occupation state, the WAIT flag are used to indicate the I2C bus waiting for release status, and the ERROR flag is used to indicate the I2C bus failure state; the arbitration method of the I2C bus comprises the following steps S1-S4:
[0039] Step S1, the bus arbitration unit receives the I2C bus control request sent by the c...
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