Forum Discussion
Altera_Forum
Honored Contributor
20 years agoQuartus question
Quartus II gives this warning message: Warning: Found 159 output pins without output pin load capacitance assignment
Warning: Pin "ENET_ADS_N" has no specified output pin load capacitanc...
Altera_Forum
Honored Contributor
20 years ago --- Quote Start --- Quartus II gives this warning message:
Warning: Found 159 output pins without output pin load capacitance assignment
Warning: Pin "ENET_ADS_N" has no specified output pin load capacitance -- assuming default load capacitance of 0 pF for timing analysis
.... Q1) Does this cause any problems? Q2) Any idea what Quartus II settings can be used to fix this? @Q2: - right click on the pin, which causes the warning - locate - locate in assignment editor - check that <all> is enabled - in an empty tab field under <assignment name> below location double left click -> a window with a scrollbar should pop up - scroll down to output pin load - left click on this ^^^^^^ text, should get dark blue - in the information window you can read the info about this property - go to value: left click, enter a value you need - exit this window, confirm to save changes @Q1: until now I didn't take care of it. I just took the values suggested in the samples. No problems with that.Some components seem to require this. Might be someone knows an application note from altera how to calculate /define this. good luck.