AR# 7457: 2.1i 9500/XL Hitop : "Warning NL_PRIMPIN has no net name. The pin is ignored."
2.1i 9500/XL Hitop : "Warning NL_PRIMPIN has no net name. The pin is ignored."
Keywords : NL_PRIMPIN, hitop, ignored, pin
Urgency : Standard
General Description : When running a design through the 2.1i tools, hitop may issue the following warning : "WARNING:CPLDFitter - Ngd2nds finds a NL_PRIMPIN that has no net name. The pin is ignored." NL_PRIMPIN is not a design name and does not appear in the netlist.
The warning is generated when pins on primitive elements are left unconnected. For example, this warning would be generated if the clock enable input of an FDE was left unconnected. It is merely an indication that the element will be implemented as an FD. These warnings can be safely ignored. These warnings no longer appear in version 3.1i of Xilinx software.