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reubengoh's avatar
reubengoh
Icon for Occasional Contributor rankOccasional Contributor
2 years ago
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NiosII booting from on-chip memory SPI issue

Hi all, I am using quartus prime 19.1 lite, and I am trying to load a simple SPI program that sends SPI commands using NIOS II processor. The board that I am using is DECA Max10 Development Board. I...
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  • reubengoh's avatar
    reubengoh
    2 years ago

    Hi all,

    Just an update to this issue.

    The problem has been resolved by disabling the alt_printf statement in my C code. My .pof works now, and it can send the spi commands after power cycling the board.

    My guess is that as there is no communication between the board and the nios2 terminal, the alt_printf pointer got lost when executing the function. Hence when loading .pof, all alt_printf must be disabled.

    Regards,

    Reuben Goh

reubengoh's avatar
reubengoh
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

Hi Fathulnaim,

Thank you for your help.

I have tried loading your .pof file using 20.1 lite. After power cycling the board, I am able to get more signals now instead of 2 "$HELLOABC*", now I am getting 53 "$HELLOABC*LF", however it still stops and is not running in a continuous while loop as I expect.

I will try to compile the file again in 20.1 lite and see whether it will work.

Regards,

Reuben Goh