Microcontroller chip, digital interface signal control system and method

Abstract

The invention discloses a microcontroller chip and a digital interface signal control system and method. The digital interface signal control system comprises a first circuit module, a second circuit module and a third circuit module, and the first circuit module is used for constructing a sensor model according to software configuration; the second circuit module is used for collecting current analog conversion values of all associated touch channels in the constructed sensor model, normalizing the analog conversion values and then outputting the analog conversion values to the third circuit module; and the third circuit module is used for calculating the current state of the corresponding sensor model according to the analog conversion value and outputting current state information. According to the method, chip software does not need to participate in the construction of the sensor model, the acquisition and calculation of hardware channel data and the motion detection process of the sensor, so that the development difficulty of software is greatly reduced, and the product development efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of integrated circuits, in particular to a microcontroller chip, a digital interface signal control system and a method. Background technique [0002] The principle of most current capacitive button detection: When a finger presses a touch button, it is judged whether a finger is pressed by whether the ADC sampling value of the channel reaches the pressing threshold. For example, slider sensors and rotary sensors often combine multiple channels together and then collect the ADC values ​​of each channel, and then set a certain algorithm to determine whether a button is currently pressed; the ADC sampling value of the center channel touched by the finger is the lowest ; The closer the adjacent channel is to the central channel, the lower the ADC sampling value of the channel, and vice versa. [0003] Most of the existing MCU or SOC chips detect touch buttons are processed by the software layer. This process r...

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Problems solved by technology

[0003] Most of the existing MCU or SOC chips detect touch buttons are processed by the software layer. This process requires a large number of software algorithms to process, which increases the difficulty of software development, and the perfection of each algorithm and subsequent maintenance require a lot of energy. , reducing the efficiency of product development

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