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DS3231时钟芯片
DS3231是一颗时钟芯片,¡¿¡¿它的守时精度可以达到 2个ppm。¡¿¡¿下面对它的基本功能进行测试,¡¿¡¿为后面再工程中应用验证基本方案。¡¿¡¿提供基本的测试数据。 二、测试电路 设计电路,其中的单片机为 STM32F103。通过 I2C总线连接 DS3231芯片。
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