Geomagnetic chip working state control method, device and equipment

Abstract

The invention provides a geometric chip working state control method, device and equipment and relates to the field of integrated circuit chips, wherein the geomagnetic chip working state control method comprises the following steps: querying, by using the identified first ID information, a first position of a geomagnetic chip currently in a working state on a PCB board and a first path position of a power supply line in connection with a load according to a first ID address of the load currently in the working state; when the first position and the first path position are within a preset distance range, controlling the first geomagnetic chip to stop working and controlling a second geomagnetic chip to enter a working state, wherein the distance between a second position where the second geomagnetic chip is located and the first path position is out of the preset distance range, so that the geomagnetic chips in the working state are all far away from the power supply line, and the power supply line doe not produce electromagnetic interference to the work of the geomagnetic chips, thereby ensuring the precision of the geomagnetic chip, prolonging the service life of the PCB board and improving the user experience.

Description

technical field [0001] The invention relates to the field of integrated circuit chips, in particular to a method, device and equipment for controlling the working state of a geomagnetic chip. Background technique [0002] There are more and more terminal devices that support the compass function. This function can be realized by adding a geomagnetic chip to the PCB board design. After the geomagnetic chip detects the data of the earth's magnetic field, it transmits the data to the processor through the digital interface for processing. After the corresponding APP is called, it can provide pointing services for end users. However, the geomagnetic chip itself is very sensitive to external electromagnetic interference, especially the power wiring on the PCB where the geomagnetic chip is located. If the distance between the two cannot be effectively opened, when the power supply line is working corresponding to the mounted load, current will flow on the power supply line, and a...

AI Technical Summary

Problems solved by technology

If the distance between the two cannot be effectively opened, when the power supply line is working corresponding to the mounted load, current will flow on the power supply line, and at this time, electromagnetic interference will be generated on the data collected by the geomagnetic chip, which will affect the detection of the earth's magnetic field. the accuracy of

However, the area of ​​PCB board design is getting smaller and smaller, and it is difficult to distance all power lines

[0003] The method of traditional technology is to compensate for interference through software algorithms, but this method has limited compensation scenarios. For example, in scenarios where the load current is not fixed and there are many power lines, the compensation effect is not ideal.

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