LPC210X自带有的实时时钟模块，常用的实时时钟芯片有DS1302、DS12C887。要想使用LPC210X的实时时钟只需设定几个寄存器即可，如果想要它具有掉电不丢失数据功能则需要给它添加备用电池-LPC210X comes with some real-time clock module, commonly used real-time clock chip DS1302, DS12C887. To use LPC210X real-time clock can only set a few