Reserve all unused pins: As input tri-stated with weak pull-up-Leds are glow faintly

Question

Hello everyone,

i am new to FPGA programming.

I have set the unused pins to tri-stated with weak pull-up. As a result, all the unused LEDs are dim.

Is there a way to prevent this without having to assign the pins to the LEDs and set them to 0?

Thanks in advance and apologies for my english.

altera_forum · Answer

How about adding this to your .qsf file instead:  set_global_assignment -name RESERVE_ALL_UNUSED_PINS "AS OUTPUT DRIVING GROUND"

altera_forum · Answer

Thank you very much for your answer.

--- Quote Start ---

How about adding this to your .qsf file instead:

set_global_assignment -name RESERVE_ALL_UNUSED_PINS "AS OUTPUT DRIVING GROUND"

--- Quote End ---

The default setting of Quartus was 'as output driving ground' for the unused pins.

By this setting, I received the warning, "The Reserve All Unused Pin Set has not been specified, and will default to As output driving ground."

But I must avoid this warning.

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