Data communication method and apparatus

Abstract

The application belongs to the technical field of data communication, and discloses a data communication method and device, the method comprising: when the level state of the fault indication pin of the digital output driver chip jumps from high level to low level, the jump is identified as the start identification of the data receiving process; after the start identification is identified, the level state of the fault indication pin is detected in the preset sampling window in each bit time period in the unit of the preset bit time period, and the data bit corresponding to the level state is determined according to the detection result; in the decoding process, after the fault indication pin is detected to become low level, an invalid level signal is output to the enable pin of the digital output driver chip in the preset time interval, and after the fault indication pin is restored to high level, the valid level signal is restored to the enable pin. The application solves the technical problem that the sensor in the prior art causes the waste of hardware cost and functional redundancy resources when communicating.

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