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.
Solved! Go to Solution.
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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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!
-----------------------------------------------------------------------------------------------------------------------
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}.