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Altera_Forum
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15 years ago

How to control fan out of an asynchrounous signal

Hi, We had a design let say would be replicated more than 8000 times or would generate 8000 of fan-out for the reset signal. Module:process(reset,clock) Begin If (reset=’1’) then S...
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Altera_Forum
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15 years ago

Dear FVM,

Thanks for your response,

the Quartus shows “Warning: Ignored Maximum Fan-Out assignment”

We try use MAX_FANOUT setting to control the net and to duplicate the flip-flop driving this net. Unfortunately, this cannot be used because the node feeds to an asynchronous Control ports. You may refer to the picture above.

http://www.altera.com/literature/hb/qts/qts_qii5v1_03.pdf (http://www.altera.com/literature/hb/qts/qts_qii5v1_03.pdf) -> page 9-47

So how do we control the fan-out for an asynchronous signal in Quartus?

Thanks in advance,

Best regards

Kenny