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Altera_Forum's avatar
Altera_Forum
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12 years ago

Sof file doesn't work

Hi, I'm working with Quartus II, using a Cyclone III device with a EPCS64 flash memory.

I've inherited of a Quartus project, I have a sof file of 2412 Ko called top_fpga_opg_master.sof

of type EP3C80.

I want to regenerate this sof file it without modificate my Quartus project at first ; so in Assignments I chose in

Device Family Cyclone III, in Target device -> specific device selected in 'Available devices' list

EP3C80F484I7 (because this is what is written in the first line of the sof file), and in Device and Pin Options

see the following attachment.

When I run assembler I've a new top_fpga_opg_master.sof with a size of 2412 Ko, so it's Ok !

But this new one doesn't work, so I don't know if I forgot to check an option or something else ?

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  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    --- Quote Start ---

    Critical Warning: No exact pin location assignment(s) for 222 pins of 222 total pins

    When run Fitter

    --- Quote End ---

    If you have the original Quartus project like you said, you should have pin already assigned.

    I can't understand why you are missing them. :confused:

    Anyway, if you can't retrieve the project settings and contraints, you'll have to reassign them from scratch.

    Take your board schematics, open the pin assignment editor in Quartus and put the right pin number beside the signals.

    This is a mandatory step.

    After this you may also need to set some specific options and some timing constraints, but this depends on your project.