qdrives , 04-14-2022, 08:22 AM
1. If the sheet entry in high level sheet is not connected, then the pin in the lower level sheet my give the warning message that only one pin is connected. Have you synchronized the sheet symbol? Right click on the component -> Sheet symbol actions -> Synchronize sheet entries and ports.
2. Often, the net name for the higher level sheet should be <portname>_<designator of sheetsymbol>. Yes, I know, annoying. Also make sure that Project / Project options -> Options tab -> Net list options box -> Higher level names take priority is checked.