ETHERNET PROBLEM IN MK66

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ETHERNET PROBLEM IN MK66

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maheshwarreddy
Contributor I

Hi,

   I'am using the udo_echo in sdk2.0 of MK66 MCU , Its working fine whenever I choose ENET Clock source from ENET_1588_clk_in(PIN no:47), But I am trying to have Ethernet clock from XTAL(PIN NO:72).

I have done only a small change after that its not working!

Changes :

// SIM->SOPT2 |= SIM_SOPT2_RMIISRC_MASK; This line is replaced with following     
SIM->SOPT2 &= 0x7FFFF; 

Please Can anyone suggest me if any other modifications?..

Thank you ..,

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Hui_Ma
NXP TechSupport
NXP TechSupport

Hi

The K66 reference manual shows Ethernet module clock generation:

pastedImage_1.png

So customer's code can refer below code:

SIM->SOPT2 &= ~SIM_SOPT2_RMIISRC_MASK;

SIM->SOPT2 |= SIM_SOPT2_TIMESRC(2);


Wish it helps.

Have a great day,
Ma Hui
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