How to solve Kicad errors about pins

[bosparra]

Kicad errors

I am trying out Kicad for the first time. I've found that once I got my head around the seperate component and footprint libraries it all makes sense. But I've got a couple of issues I can't seem to figure out.

(I can't get the image to show in the right place in this post?)

Firstly, schematic rules check errors:
My PSU circuit looks as follows and the arrow indicates the following error
ErrType(4): Conflict problem between pins. Severity: warning
@ (8.5500 ",1.5500 "): Cmp U1, Pin VO (power_out) connected to
@ (2.6000 ",4.6000 "): Cmp MCU1, Pin 7 (BiDi) (net 28)
(See psu.png)
MCU1, Pin 7 is the AVCC pin, which is connected to VCC as shown below. This is intentional, but I can't figure out how to get rid of the warning.
(See vcc.png)

The second warning says the following:
ErrType(3): Pin connected to some others pins but no pin to drive it
@ (5.6000 ",5.2500 "): Cmp #PWR014, Pin 1 (power_in) not driven (Net 10)

This relates to a switch as shown below, whats up with that?
(See switch.png)

Secondly, the voltage regulator shown in the PSU circuit, remains unconnected in the board. The error I get is something like Module [U1]: Pad [GND] not found and then repeats for the other two pads. I suspect it is because the pin names are incorrect. I made a new footprint with the correct names, but the errors stay the same.

Any help would be appreciated, as I have read just about every tutorial out there and none of them cover the issues I have.

 

[keith1200rs]

Kicad errors

I cannot help with specific Kicad problems, but in general I get dozens of DRC warnings on my schematics. Most DRC checks are crude and assume that a chip power pin must go to a net named as a power net, for example. If you put a small inductor in series with the power pin and a decoupler then it warns that it isn't connected to power. Similarly if you connect a microcontroller input to power it will warn you. All I do is look through the warnings to make sure there aren't any "real" errors.

So, your "floating" input to a switch is fine, provided you have defined a pullup/pulldown in the micro input.

I am not sure about the others - I am not sure of the significance of the little circles at the connection points (some of which seem to be missing).

Keith.

 

[bosparra]

Re: Kicad errors

Secondly, the voltage regulator shown in the PSU circuit, remains unconnected in the board. The error I get is something like Module [U1]: Pad [GND] not found and then repeats for the other two pads. I suspect it is because the pin names are incorrect. I made a new footprint with the correct names, but the errors stay the same.

Is there anyone, familiar with Kicad, that might be able to assist with the issue above?

 

[solonsun]

Kicad errors

and i got the same trouble.

 

[n1ist]

Re: Kicad errors

Make sure the pin names match between the schematic and footprint. If they don't, you will need to make a copy of one or the other and change the pin names to match. For example, an LED may have pins named A and K, while the 0603 footprint may name the pins 1 and 2.

As for the power pin conflict, you can ignore it or fix the model - in this case, I'd edit the symbol for the processor and set Avcc to be a power in pin.
/mike

 

[bosparra]

Kicad errors

Thanks for the reply Mike. That was also my thought, that the pin names are different. I made a copy of the footprint and made the names the same. I just did it again, importing the netlist into the pcb gives the following:
[TO220_VERT2]
Module [U1]: Pad [VI] not found
Module [U1]: Pad [VO] not found
Module [U1]: Pad [GND] not found
Component "RV1": Mismatch! module is [TO220_VERT] and netlist said [TO220_VERT2]

I suppose the issue could be related to the module mismatch, in that it is not finding the new module TO220_VERT2. I think I am still missing something in creating new modules, but not sure what.