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reubengoh's avatar
reubengoh
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2 years ago
Solved

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,

I have tried it and I get the same result on the spi, 2 "$HELLOABC*$" and stops.

With regards to your above question, here are my reply.

Would like to ask you to check on few things.

  1. If running .pof file, does it always stop at 53rd line?
  2. Does NiosII output prints using .pof continuos or stopped after 53 lines as well?
  3. If above is true, can you try to perform test with the simple normal hello world prints and see if that can continue.

1. Yes it always stop at 53rd line.

2. I did not check the output prints using .pof, how to check it? Is it by connecting to COM port in a console terminal?

3. Sure I will try this.

Regards,

Reuben Goh