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在TI官方的数据手册中，有图1中这样一句话“Note that the PPBxZERO bit in the ADCEVTSTAT register is gated by EOC and not by the sign change in the ADCPPBxRESULT register.”这告诉我这个过零检测模块仿佛没有那么简单？？但从结构框图上来看，并没有任何EOC信号引入到过零检测模块中。？？
