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About DQ amplitude by DDR3 stress test in i.MX6DQ.

Question asked by Keita Nagashima on Oct 28, 2015
Latest reply on Nov 1, 2015 by Yuri Muhin

Dear All,

 

Hello. We found the 1st bit of the DQ amplitude was small by DDR3 stress test (Writing mode).

And, tDS/tDQ found tight specifications (DQS or DQ - CLK).

*Refer to attached file.

 

How to increase the DQ amplitude?

For example, if user increase the DQ Drive strength (40 Ohm --> 34Ohm), is this issue improved?

 

 

This question is related to the following thread.

https://community.freescale.com/message/558926#558926

 

Best Regards,

Keita

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