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Yogesh's avatar
Yogesh
Icon for Occasional Contributor rankOccasional Contributor
5 years ago

How to load data to FPGA memory using NIOS application?

Hi, I have developed some NIOS application, and I am using NIOS II Eclipse tool to run the same. Suppose I have some data in files. I want to load some amount of locations in DDR of my FPGA device wi...
Isaac_V_Intel's avatar
Isaac_V_Intel
Icon for Contributor rankContributor
5 years ago

Hello Yogesh,

Yes, you need to follow these steps to get the C code.

  • Compile the Quartus project
  • Open Nios ll
  • Select the same Quartus project folder for the Eclipse project
  • Open Nios ll Aplication and BSP from Template and select the BSP that you have in your workspace
  • Compile the Nios ll project

If you follow these steps you are going to have the software folder and the C code. Also I attached the C code.

Best regards.

Isaac Vazquez

Yogesh's avatar
Yogesh
Icon for Occasional Contributor rankOccasional Contributor
5 years ago

Hi Isaac,

Thankyou for sharing the code.

I was able to write some data. But SDRAM_TEST fails at some addresses.

Say, If I try to write at addr 0x10005000 . I am able to write 3k bytes . But after that I am not able to write data, since SDRAM_test fails in that region.

I have shared BSP memory screenshot. Please answer my below queries:

1) SDRAM addressing has addr from 0x10000000 to 0x1fffffff . Does this mean I can write/read to all the address in this range ?

2) Even if I change the address to 0x20000500, which is above that of SDRAM address range. I am not able to write anything here. SDRAM_test fails . So , why am I not able to access this range of address?

3) Suppose I want addr from 0x20000000 - 0x2fffffff to store some initial input data for processing how should I specify in eclipse tool / qsys ,to access the same?

regards,

Yogesh