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himanshuvaria's avatar
himanshuvaria
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

Is it possible to run NIOSV through SDRAM ?

Hello, I am developing a project where NIOS II needs to replaced with NIOSV processor. When my design was having NIOS II as CPU, I was running the software code through External SDRAM on the Cyclon...
Embedded Applications Layer
Nios Cpu
KellyJialin_Goh's avatar
KellyJialin_Goh
Icon for Frequent Contributor rankFrequent Contributor
2 years ago

Hi Himanshu,

Unfortunately, we do not have a design example for External SDRAM running on NIOS V for your reference.


Also, may you check whether the Debug Module reset for NIOS V is connected to the external SDRAM? I will attach a picture of an example for this qsys connection.


Thank you and looking forward to your feedback.


Thank you.


Regards,

Kelly


himanshuvaria's avatar
himanshuvaria
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

Hello,

I have verified that the Debug Module reset for NIOSV is connected to the external SDRAM. Please have a look at the below image for my QSYS configuration.

NIOSV configurations:-

With the above configuration, The NIOSV Code is able to get downloaded into SDRAM without RUN configuration failure in normal mode. But, still it gives me the same pop up error while running the ELF in Debug Mode. Error : Operation failed : "Command Aborted".

Debugger Console warning : "Cannot access memory at address 0x984"

Can you please elaborate in detail for the root cause of such issue ? I am again asking just to confirm that can we run NIOSV through external SDRAM ? If yes, then we can debug further with the hardware design perspective.

Thankyou for the co-operation. Looking forward for your response!!

Regards,

Himanshu.