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Altera_Forum
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8 years ago

set_input_delay And set_output_delay .SDC Constraints

Hello! I have little familiarity with the set_input_delay and set_output_delay SDC and was wondering whether the following commands would correctly constrain the inputs as per the requirements in th...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

UPDATE : When I remove the -clock_fall constraint, which I included since the data was changing on the negative edge of the clock, the failing constraints go away.With the following constraints, I get no errors. 

set_input_delay -clock clkvin -max 25 
set_input_delay -clock clkvin -min 10

The only change I've made is the removal of the -clock_fall