Forum Discussion
Altera_Forum
Honored Contributor
21 years agoAs an update I did try the slew rate and current strength options.
Setting slew rate to Slow for my flash CS made no discernable difference to the rise time of this signal. Perhaps this is the default? Setting current strength to minimum did reduce xtalk considerably. Rise time on the troublemaker went from < 3ns to about 7ns. I'd like to know where I look to see what the global defaults are, or if there is a automatic pin by pin assignment based on timing constraints. I assume most would want to have the slowest edge that still provides some timing margin.