规格书里面肯定有说到的,外设没有时钟你往它寄存器里面写数据都是无用的
我不会贴图,你可以看规格书的第103页,总1072页;
摘抄如下:
Note: When the peripheral clock is not active, the peripheral register values may not be readable by software and the returned value is always 0x0.
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发表于 2011-1-14 14:35
摘抄如下:
Note: When the peripheral clock is not active, the peripheral register values may not be readable by software and the returned value is always 0x0.