Honored Contributor
Honored ContributorHello Benjamin_Couillard,
I am pretty sure you would have sorted this out by now. however just for the benefit of future readers / users who might stumble across this thread. if you do not explicitly set a current strength for your I/O standard, i.e. you do not change the default I/O Standard in Pin Planner, then the current strength will be set to the default settings for the device. https://www.altera.com/support/support-resources/knowledge-base/solutions/rd08292012_329.html So for your case, since i assume you left the I/O standard / current strength settings as the default values in Quartus, that is why you see the 50-ohm series termination without calibration in your generated IBIS model =) You can double check this in your Fitter Report. just giving you 2 scenarios to help explain the differences a little more clearly. scenario# 1 setup in pin planner - I/O Standard = 2.5 V (default) - Current Strength = 12mA (default) fitter report name pin# i/o bank i/o standard current strength termination led0 AK3 3B 2.5 V Default Series 50 Ohm without Calibration scenario# 2 setup in pin planner - I/O Standard = 2.5 V - Current Strength = 12mA fitter report name pin# i/o bank i/o standard current strength termination led0 AK3 3B 2.5 V 12mA Off thanx.
