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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...
Embedded Applications Layer
  • 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,


I've got a question relating to this document below as well.

https://www.intel.com/content/www/us/en/docs/programmable/683689/current/processor-application-executes-in-place-60969.html

When booting NIOS II from on-chip memory (RAM), why does the hardware design (attached below) indicate in this document to include the on-chip flash IP.

Anyway I tried to use this hardware design as well in the document, but still had the same issue with my SPI.

Regards,

Reuben Goh