Does i.MX6 MMDC or DDR cal tool support read leveling?

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Does i.MX6 MMDC or DDR cal tool support read leveling?

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torus1000
Contributor V

Hi,

I heard QorIQ Configuration Suite (QCS) support read adjust method
(read leveling) as following.

Automatic CAS to preamble calibration:

Instead of JEDEC’s MPR method, Freescale controllers use a

proprietary method of read adjust method. Auto CPO will provide the

expected arrival time of preamble for each strobe line of each byte

lane during the read cycle to adjust for the delays cased by the fly-by

topology

Does DDR calibration tool for i.MX6* also support this feature?

* such as:
     i.MX6/7 DDR Stress Test Tool V2.20
     https://community.freescale.com/docs/DOC-105652
     i.MX6 DDR Stress Test Tool V1.0.3
     https://community.freescale.com/docs/DOC-96412

Thanks.

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Yuri
NXP TechSupport
NXP TechSupport

Hello,

  As I understand the question relates to DQS gating feature, described

in section 12 (DQS Gating ) of app note AN4467 (i.MX 6 Series DDR Calibration).
The DDR Stress Test Tool performs DQS gating calibration.

i.MX6/7 DDR Stress Test Tool V2.30


Have a great day,
Yuri

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Yuri
NXP TechSupport
NXP TechSupport

Hello,

  As I understand the question relates to DQS gating feature, described

in section 12 (DQS Gating ) of app note AN4467 (i.MX 6 Series DDR Calibration).
The DDR Stress Test Tool performs DQS gating calibration.

i.MX6/7 DDR Stress Test Tool V2.30


Have a great day,
Yuri

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

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torus1000
Contributor V

I see. Thank you for your correct answer.

I read User Guide then found a description as following:

The read DQS gating calibration is used to adjust the read DQS gating with the middle of the

read DQS preamble.

It seems as same as  QCS without using MR3[2:0] ={MPR,MPR loc}.

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