Nd Help with Warning

[scampa123]

Hi everyone,

I’m new to Kicad (and creating schematics) and I’ve come to a warning and am not sure if I need to be concerned with it. I’m not seeing any errors at this point, only this warning around my EEPROM.

The warning says: Conflict problem between pins. Severity: warning
…Pin 7 (bidirectional) of component U1 is connected to Pin 1 (power output) of component #FLG0105 (net 35)

I read the posting at https://forum.kicad.info/t/errtype-3-pin-connected-to-some-others-pins-but-no-pin-to-drive-it/10946 and added power flags but the warning remains…

I’m attaching a photo which will hopefully show you the area of concern.

Any guidance would be appreciated.

Thank you!!

[hermit]

The pin is marked as ‘bidirectional’ and is expecting to be used for some sort of data. You have it hooked to power. If this is correct then you need to change the pin type for this application or live with the error.

Electrical type of schematic symbol pins (KiCad 4 and KiCad 5)

What are electrical types used for? The electrical type is used by the electrical rule check (ERC) to determine if you made an obvious mistake. ERC is really quite limited. All it does is read all electrical types of pins connected to a particular net and check their combination against the error matrix. Example: By default connecting two output pins together will result in an error. (Makes sense as one output can be high and one can be low resulting in a short circuit between the positive supp…

[kenyapcomau]

According to the datasheet pin 7 is WP = Write Protect, which is an input pin, not bidirectional. Where did you get the symbol? If from the Kicad library, please report a bug.

[peter12175]

Hi
It seems to me that you have made connections between the five signals on the left of your schematic. Delete the junction points and all will be ok

HTH
Kind regards from France
Peter Greuter

[scampa123]

It was in the Sparkfun library

[scampa123]

The connections on the left all go to GND, which is why it looks that way. Are the junctions wrong? I just have a ground line going up the side to make it easier to tie all the pins in

[scampa123]

I changed a few of the bidirectional pins to input and the warnings went away. I think I may be all set…for now!!

Thanks for all the assistance!!

[paulvdh]

Your I2C resistors seem to be connected erroneously.
The 2k2 resistors seem to be in series with SDA and SCL, while they should be pullup resistors to your positive power supply (Whether 3V3 or 5V).

[scampa123]

Good catch!! Thank you for pointing that out!!