Forum Discussion

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...
Fpga Devkit
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 !!