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Eagle schematic showing error in connection

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Y.li

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Hello,

I was connecting signal wires in eagle schematic to a IC (7408). After connecting it to power signal, when I did ERC, it is showing supply not connected. I tried by connecting the power signal wires both above and below the circular taps (it was not getting connected to central portion) Pls. advise.

sch.png

Thanks,
Y. Li
 
Last edited by a moderator:

from what i can see, it looks like your grid is not set properly.
I.e. its probably too large. Reduce the grid - 0.1inch is usually a good value to choose - and try again
 

I have replaced your 1.6MB BMP file with a more reasonable 17kB PNG - use more appropriate formats for posting images in future.

As has already been said - post your Eagle .sch file and you are putting things "off grid". I don't know if that is a standard Eagle part, but if you have made the part yourself then the problem could be in the library you created.

Keith
 

keith1200rs said:
I don't know if that is a standard Eagle part, but if you have made the part yourself then the problem could be in the library you created.

Keith
Click to expand...

good catch. that does look like a created part. the problem could be bad grids / sizes while creating it.
 

kripacharya said:
good catch. that does look like a created part. the problem could be bad grids / sizes while creating it.
Click to expand...

It is a 7408 quad and gate(see my previous post). That is basically a standard part & available in eagle library. I tried by changing the grid. It is still showing the error.

Regards,
Y. Li
 

keith1200rs said:
That would seem the best way to get a solution.

You could try to INVOKE the power pins and connect them, if that is they way the part is made.

Keith.
Click to expand...

I invoked the power pin and then only did the connection (the pins with 'round heads' in the pic).

Y. Li
 

I don't understand - is it fixed now? If not, upload your schematic file.

Keith
 
Last edited:

keith1200rs said:
I don't understand - is it fixed now? If not, upload your schematic file.

Keith
Click to expand...

he's not gonna do it, is he now ? Thats thrice the forum has asked now...
Its definitely some grid resolution/ mismatch problem.... i'm sure he'll figure it out now that we've given the guidance.
 

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