HPS DDR Interface - HPS DDR Interface
For the HPS memory controller (DDR interface) : Is it possible to swap DQS differential pairs (P/N inversion) through software or configuration? Or must signal polarity strictly be respected at the PCB level?
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Re: HPS DDR Interface
Hi Let me know if you have any further clarification needed for this issue?
Replies:
Re: HPS DDR Interface
Hi You are able to do the swapping of a Differential pairs in the device through some RTL logic before the HPS EMIF IP Core. However there is no option in the IP to do this. https://community.altera.com/kb/knowledge-base/can-i-swap-the-positive-p-and-negative-n-signals-of-a-differential-pair/340214 Regards tehjingy - 2026-06-13
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