Forum Discussion
AKorn9
New Contributor
New ContributorDDR4 I/O standard 1.2-V POD
Greetings! I try to use PhyLite and my own memory controller. So I try to use "1.2-V POD" I/O Standard. But in the Quartus report I can see "Ignored Value" in the "Ignored Assignments" section to my...
AKorn9New Contributor
New ContributorHi NAli1_Intel! Thank you for answer!
In fact it is not an error message. I can see it after fitter process finished.
And I can not read data from DDR4. I am using Arria 10 device kit and HiLo daughter card. Unfortunately it is very complicated to connect an oscilloscope to the daughter card and I do not know how memory chip answer to the commands.
To the qsf I added the next strings:
set_instance_assignment -name IO_STANDARD "1.2-V POD" -to DQ[0]
set_instance_assignment -name VREF_MODE VCCIO_70 -to DQ[0]
...and so on.
But it seems the PhyLite does not work as I expect.
AKorn9New Contributor
New ContributorI changed 'IO settings' in the 'General' tab in the Qsys from '1.2-V POD' to 'None'. This warning is gone. PHYLite with DDR4 works perfectly.
