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Andrey_Fazan's avatar
Andrey_Fazan
Icon for New Contributor rankNew Contributor
4 years ago

calibration of ddr4 interface on 10AX066H4F34E3SG

Hello! I'm trying to implement DDR4 40bit-wide interface with 3 devices MT40A512M16LY-062E. When I connect only one of 3 devices to the project, calibration and data exchange do well, but when I conn...
AdzimZM_Altera's avatar
AdzimZM_Altera
Icon for Regular Contributor rankRegular Contributor
4 years ago

Hi Andrey_Fazan,


Thank you for sharing the calibration error.


Is the calibration always failed at that stage?

Which memory that the calibration is failing?


Can you try to disable the address and command leveling calibration?

You can set it in the IP Parameter Editor, under the Diagnostics tab,

select the Skip address/command leveling calibration.

I'm referring to the KDB in the link below. It's looks like the error is related.

https://www.intel.com/content/www/us/en/programmable/support/support-resources/knowledge-base/solutions/fb292783.html


The address mirroring option is in hidden parameter and I can see that the default value is already been enabled in Quartus Prime Pro 20.2.


Regards,

Adzim


Andrey_Fazan's avatar
Andrey_Fazan
Icon for New Contributor rankNew Contributor
4 years ago

Hi! I disabled address and command leveling calibration, it didn't help. I made reset signal to be held 200ms (after power on), it also didn't help.


Is the calibration always failed at that stage? - Yes
Which memory that the calibration is failing? - What do you mean here?

I attach full report of calibration for better understanding