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Honored Contributor
Honored ContributorCyclone 2 FPGA Starter Board Issue
Hello, My Cyclone II FPGA Starter Board seems not to work when I program it through the USB blaster cable. When I download a sof file, I see the blue led flashing. But simply my programs aren't...
Altera_ForumHonored Contributor
Honored ContributorThe fact everything work in the RUN mode shows you don't have any hw failure.
The dimmed LEDs almost surely mean they are driven with a modulated signal (i.e. a square wave) rather than a steady logic level. This could indicate that you are loading a wrong sof file, belonging to a project where those LED pins are used for anything else. Do you use a precompiled sof file or did you regenerate it from Quartus project sources? In the second case, probably you simply need to check pin assignments.
