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Altera_Forum's avatar
Altera_Forum
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15 years ago

Unable call alt_main() inside _start routine when using SSRAM as program memory

Hi,

My Application is not able call alt_main() inside _start routine when using SSRAM as program memory. I read the PC register and found that it is stop at "call alt_main" in *.objdump file

FYI, the application able to run successfully when im using on chip memory.

I also tested my SSRAM and have no issue in reading/writing.

Any suggestion or solution are appreciated. thanks.

5 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    Check if loader is correctly loading program code into ssram.

    If not, your ssram is still uninitialized and program hangs when you try to execute from ssram.
  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    Thanks for your reply Cris72.

    I load my application thru the "Run as --> Nios II Hardware". Program should have loaded into ssram as it state it is verified in the Console Tab.
  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    i cant see the "Nios2 hardware" tab in "Run as" does anyone know what may b the problem? the only option is "local c/c++ application"

  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    For shahzad

    You must select the project you want to run in the projects list before selecting "Run as".

    Moreover, the first time you run a project you shouldn't select "Run as" but "Run..." instead; select appropriate settings and then Run. Next times you can use "Run as"