[求助没有外部晶振,可不可以改变内部振荡器的分频值?
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[求助没有外部晶振,可不可以改变内部振荡器的分频值?
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rf2,没有接外部晶振,可不可以调节pll的分频值来调节总线频率呢? |
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再问一个问题,kx8单片机,datasheet上说定时器用总线时钟,bus freq=cgmxclk/4,但是我编了一个程序测试定时器用的cgmxclk,为什么? |
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