651 - PAC-Designer: Why does my LogiBuilder design fail to compile?&nbsp;&nbsp;<strong>PAC-Designer</strong> fails with: F38009 Invalid Node assignment for signal 'pin assignment'.

651 - PAC-Designer: Why does my LogiBuilder design fail to compile?&nbsp;&nbsp;<strong>PAC-Designer</strong> fails with: F38009 Invalid Node assignment for signal 'pin assignment'.

PAC-Designer: PAC-Designer will issue this error message if an output is set to be controlled by I2C and that same output is used in a Boolean equation. The fitter drops the output macrocell from the resource list as I2C is controlling the pin. Neither the pin nor the I2C register wrap around to the input of the PLD only the macrocell output. Thus the input signal is invalid.