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请教关于pll默认配置的问题?



在配置主频时主要有四个变量影响;input clock, PLLM, PLLD, OUTPUT_DIVIDE,有几个问题没想明白:

1.如果有Inputclock,没有配置PLLM,PLLD,有默认值吗??

2.OUTPUT_DIVIDE的默认值还随着keystone架构不同而有不同的默认值吗?

3.配置完成后,如果我想看核的主频值的话,有对应的寄存器可以查看吗???

谢谢解答,谢谢。