Every day correction is made twice, thereby the error can be controlled within a certain limit, the quasi non error realized and larger error caused by accumulating avoided.
介绍了采用单片机来开发时钟芯片,使整个系统能够同时显示年、月、日、星期、时、分、秒,具有自动校时的功能,每天校正两次,使误差控制在一定范围内,实现准无误差,避免了累计所造成的更大误差。
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