Forum Discussion
sgr
New Contributor
3 years agoFPGA DDR interface (EMIF IP)
Hi all, We have 8GB of FPGA DDR memory space, and i want to access full 8 GB of DDR memory space. I have tried with one EMIF IP and i was able to access the DDR memory space up to 4GB Question 1...
AdzimZM_Altera
Regular Contributor
3 years agoHello!
I need some other information for checking your DDR interface.
Please provide the information of the following:
- Which Quartus version and OS environment that you used?
- Which device OPN that you used in the your design?
- What is the memory spec that you have?
- Can you share the memory device datasheet here?
- Can you take some snapshots of the EMIF IP setting GUI?
Question 1
Since we have 8 GB of DDR memory space can we use 2 EMIF IP to access the whole 8 GB, is there any limitation for that ?
- 2 EMIF IP to access 1 memory device may not be possible unless the memory and device are support it. You can provide the information that I've requested as above for checking the features available.
Question 2
If we use 2 EMIF IP each of 2 GB, we are able to access only 2GB, entire 4GB is not accessible. Is there any inputs from your side to use 2 EMIF IP ?
- I will come back to this question after getting the information of the memory and device.
Thanks!
Regards,
Adzim