Method and system for adaptively acquiring matching capacitance value

The invention provides a method and a system for adaptively acquiring a matching capacitance value, which are applied to a micro-control unit and comprise the following steps: sending configuration information to a chip; configuring N resonant capacitance values to the chip, wherein N is an integer greater than or equal to 2; capturing N clock frequencies output by the chip according to the configuration information and the N resonant capacitance values; and determining a matching capacitance value of the chip according to the N clock frequencies. According to the method and the system for adaptively obtaining the matching capacitance value, the environmental change can be automatically adapted, successive matching does not need to depend on empirical values, the optimal working frequency of the chip is obtained by setting different resonant capacitance values, and the manual operation is simplified. 本申请提出一种自适应获取匹配电容值的方法及系统，应用于微控制单元，包括：向芯片发送配置信息；向所述芯片配置N个谐振电容值，N为大于等于2的整数；捕获所述芯片根据所述配置信息与所述N个谐振电容值输出的N个时钟频率；根据所述