Sensor pin function control method and circuit, chip and electronic equipment

Abstract

The invention discloses a sensor pin function control method and circuit, a chip and electronic equipment. The method comprises the following steps: receiving a control signal for the same sensor pin; controlling the operation state of the sensor pin according to the control signal; wherein the control signal comprises a first signal and a second signal, the sensor pin is configured to be in a first operation state under the condition that the control signal is the first signal, and the sensor pin is configured to be in a second operation state under the condition that the control signal is the second signal.

Description

technical field [0001] The embodiments of the present disclosure relate to the technical field of function control of sensor pins, and more particularly, to a function control method, circuit, chip, and electronic device of sensor pins. Background technique [0002] The pins of the sensor are mostly used to collect analog signals and output signals. For example, the SDO (Service Data Objects) pin of the pressure sensor is mainly used as the serial data output of the 4-wire SPI. When the pressure sensor does not use SPI, it uses I2C instead. When used as a transmission path, this SDO pin is used as the least significant bit (Lest significant bit, LSB) of the I2C device ID, that is, used as an input. [0003] Therefore, under one communication method, one pin of the pressure sensor can only have one function. It is understandable that after the pins of the pressure sensor are made, the number of pins is limited, but the product is updated. Iteratively, when the function of a ...

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Problems solved by technology

[0003] Therefore, in one communication mode, one pin of the pressure sensor can only have one function. It is understandable that after the pins of the pressure sensor are manufactured, the number of pins is limited, but the product is updated. Iteratively, when the function of a product is increased, the pins of a pressure sensor may not be enough, at this time, if the pressure sensor is replaced, the cost will increase

[0004] It can be seen that the pin utilization rate of the sensor is low. When the number of sensor pins is insufficient, the existing sensor pins cannot meet the product iteration requirements.

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