Depopulated SH18~21 on smart devices board EVK

[technect]

Hi all,

I got to know that SH18~21 (on DDR3 CLOCK trace) depopulated, while testing with MCIMX6Q-SDB EVK.

I think they should be populated by resistor. I want to know why they were depopulated.

Is it okay to leave them in my new design?

Thank you.

[igorpadykov · Accepted solution]

Hi Seung-Gong

these SH serve as clock access points and usually not

needed on customer designs. They may be useful for development purposes.

You can leave them in your design if they are necessary for board bring-up.

Best regards

igor

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