描述

I receive the following warnings on designs that have RAM16X4S and RAM32X4S instantiations:

WARNING:NgdBuild: 452 - logical net 'N_O32X4S<2>' has no driver

WARNING:NgdBuild: 452 - logical net 'INST_RAM32X4S/D4' has no driver

WARNING:NgdBuild: 454 - logical net 'INST_RAM32X4S/O4' has no load

The above warnings are mysterious, as there is no net called N_O32X4S<2> in the design, and the RAM32X4S does not have D4 or O4 pins.

解决方案

This warning is to help you know if this net or signal was supposed to be connected in the design.