4.1.1 在索引事件时位置计数器复位(QEPCTL[PCRM]=00)一节下面这段话实在不知什么意思:
First index marker is defined as the quadrature edge following the first index edge. The eQEP peripheral records the occurrence of the first index marker (QEPSTS[FIMF]) and direction on the first index event marker (QEPSTS[FIDF]) in QEPSTS registers, it also remembers the quadrature edge on the first index marker so that same relative quadrature transition is used for index event reset operation.
我的翻译是:
第一个索引边缘之后的正交边缘定义为第一个索引标记,QEPSTS寄存器记录第一个索引标记的发生(QEPSTS[FIMF])和方向(QEPSTS[FIDF]),也记录第一个索引标记的正交边沿,所以使同相正交的过渡用于索引事件复位操作(QEPCTL[IEL]=11)。
关键是:so that 之后是什么意思。
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