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amildm's avatar
amildm
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3 years ago
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[NIOS] New CPU Memory HEX file -> should all NIOS system be regenerated?

Hello, When the NIOS Memory HEX file is replaced with a new one -> should all NIOS subsystem be regenerated (new RTL file will be created)? Can not I leave the whole NIOS system untouched and jus...
  • RProesel's avatar
    RProesel
    3 years ago

    You do not have to regenerate the NIOS sub-system if you change the .hex file that you are using to initialize the memory.

    You only have to do 2 steps in Quartus:

    1) Run 'Update Memory Initialization File' in the Processing menu.

    2) Run 'Start Assembler' under 'Start' in the Processing menu.

    This will create a new SOF file using the new .HEX file.

RProesel's avatar
RProesel
Icon for New Contributor rankNew Contributor
3 years ago

You do not have to regenerate the NIOS sub-system if you change the .hex file that you are using to initialize the memory.

You only have to do 2 steps in Quartus:

1) Run 'Update Memory Initialization File' in the Processing menu.

2) Run 'Start Assembler' under 'Start' in the Processing menu.

This will create a new SOF file using the new .HEX file.

  • amildm's avatar
    amildm
    Icon for Contributor rankContributor
    3 years ago

    As for the above flow ('Update Memory Initialization File' and then 'Start Assembler'), will this also re-compile the FPGA logic or will leave it the same as before updating the Memory Initialization File?

    Will the above flow update the NIOS memory only or will it update ALL the INIT files for ALL the Memories in the given Project?

    Thanks!