你还在自己模拟IIC总线时序吗？别傻啦，赶紧用真正的IIC总线吧，C8051F单片机就有这样的功能，这是一个用IIC总线读写时钟芯片的例子，工作正常，反正我用了三年，没问题-You still own analog IIC bus timing it?别傻you quickly with real IIC bus bar, C8051F Singlechip have such a function, which is a bus used to read and write clock chi