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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,


Thanks for sharing the calibration reports.

I can see it as you mention it previously.


If that thus matter if you change the group for your device?

such as:-

- bank C - the first device (DQS0, DQS1)

- bank B - the second device (DQS2, DQS3)

- bank A - the third device (DQS4)


If it always stops the calibration at DQS2, it could be the process has been interrupted by the reset signal.

Can check that the reset signal is not triggered during the calibration process?


Regards,

Adzim