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74HC00N Quad 2 Input NAND Gate Missing Pins

faceter

A simple circuit create to monitor Plant Moisture levels.

Pins 7 & 14 were not shown in the Logic Diagram.

ERC showed the area that was at fault  -No Supply for implcit POWER pin IC1P VCC.

I was told about INVOKE which produced teh symbol to the left which also had the missing pins.

Question:

Have I done this correctly, if yes  -  How do I incorporate it into the circuit?   ERC still reports an error.

 

image

Thanks for your help

Danny

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  • 0 in reply to Marjan58

    He indicated he had used the "invoke" command, but I suspect the problem

    may be that there is no supply defined on the board.  If you forget to add

    the power to the board, then the automatic binding to the rails can't

    happen.  I seem to remember managing to shoot myself in the past that way

    (I have found many ways actually ... sigh)

     

    mikey

     

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