Forum Discussion
ESaiv
New Contributor
New ContributorSDRAM DQ groups on custom PCB
Hello.
In a custom PCB, I have my SDRAM DQ groups assigned like shown in the photo, with the first DQ group being assigned to DQ[8..16], not DQ[0..7].
Is it required that in order to interface ...
sstrell
Super Contributor
Super ContributorThe HPS in Cyclone V includes its own hard memory controller as opposed to the soft and hard memory controller options on the FPGA side of the device. Using the HPS hard controller, as you are, is recommended for performance for the HPS. But yes, you should be starting from 0 with it.
ESaivNew Contributor
New ContributorOkay, thanks. Yes, I am starting from [8] which isn't in accordance with the pin description guide for the Cyclone V HPS hard memory PHY, hence why it is probably not working.
