Forum Discussion
New ContributorHPS 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?
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
2 Replies
tehjingy_AlteraRegular Contributor
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
- tehjingy_Altera
Hi
Let me know if you have any further clarification needed for this issue?
