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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,

Thank you for the information provided. Running NIOS V through external SDRAM should be possible.


Could you try to make the connection between "dbg_reset_out" to "ndm_reset_in" ? I will attach a screenshot on this qsys connection.


Also, could you try to use niosv-download command to try downloading elf to run the application and lowering the JTAG frequency to 6Mhz to check whether is it a RiscFree issue.


Thank you,


Regards,

Kelly


KellyJialin_Goh's avatar
KellyJialin_Goh
Icon for Frequent Contributor rankFrequent Contributor
2 years ago

Hi,

Attached below is a screenshot of the qsys connection between "dbg_reset_out" to "ndm_reset_in" for your reference. You may connect it as of below to the NIOS V ndm_reset_in , external sdram and jtag's reset.

Thank you and looking forward to your feedback after trying the debugging steps.

Regards,

Kelly