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Flexbus speed exceeded on TWR-K64F120M?

Question asked by Andreas Schmidt on Dec 22, 2014
Latest reply on Dec 23, 2014 by larry ciummo

Hi,

 

we are using a TWR-K64F120M board and I try to understand the Flexbus settings for the TWR-Kit to make the adoptions for our custom board. When I look into the bsp standard code of the K64F120M for MRAM I find no code that set the SIM_CLKDIV1_OUTDIV3 register. Since there is no divider set, the Flexbus should be running at 120Mhz like the normal bus clock. But I read that the Flexbus speed should not exceed 50Mhz. Why is this working?

 

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