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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...
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EBERLAZARE_I_Intel's avatar
EBERLAZARE_I_Intel
Icon for Regular Contributor rankRegular Contributor
2 years ago

Hi,


Is this the same issue as the one with your 16-bit data bus to your Nios V?


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

    Hi,

    Yes, it is the same issue as of the 16-bit data bus to the NIOSV. If we keep aside the SDRAM, and try to use On-Chip-Ram as program memory, where the data width of On-Chip-Ram IP is set to 16 bits, then same issue arises when running the ELF. The ELF gets downloaded successfully but the Debugger Console shows warning : "Cannot access memory at address 0x29c". When the data width of On-Chip-Ram IP is set to 32 bits everything works fine as expected.

    With NIOS II, we were capable to configure the device with 16-bits On-Chip-Ram, but NIOSV does not seems to work like that. So I think due the data width of SDRAM being 16-Bits set in the QSYS system, similar issues are occuring in that cases. Any help regarding to solve this would be appreciated.

    Thanks !!!!

    Regards,

    Himanshu

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

      Hi,

      Any update on the regarding the issue ? Please share your response !!