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OMAP3530 GPTIMER 溢出中断周期

Other Parts Discussed in Thread: OMAP3530

求助,

   我参考omap3530的手册在dsp端写了一个gptimer程序 但是对于溢出中断周期公式 不太明白

OVF_Rate = (0xFFFF FFFF - GPTn.TLDR + 1) * (timer functional clock period) * PS

这是公式 但是对于32KHZ PS=1下面的图表的example却是

GPTn.TLDR        period

0XFFFF FFFE     65.5us

很不明白 希望有人解答 图表如何才能和公式对应 参考的手册是TI 的spruf98g