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Altera_Forum
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15 years ago

how to entrance & fanout internal logic cell

Hi everybody. I use quartusII 9.1-sp1 and i develop on cyclonne-III board with serial flash memory epcs4 with 16mhz crystal. But on my development board, when i add some signals-probes for debug...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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Thank you for your reply.

Is the unused pins can cause problems?

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Hi,

first of all you should look to the default setting of unused pins. You can found the setting looking under: Assignment -> Device -> Device and Pin options -> Unused pins

Maybe your setting is " Output driven ground". This must be change to "Tri-stated input".

When you add a new output did you assign the output to a certain pin ?

Kind regards

GPK