ErrType : Pin connected to other pins, but not driven by any pin

[S.JIN]

Hi,

I have some warnings. and can’t find reasons
here is my related circuit. I think the connection is well.
could you give me some advice?
(this connection is made by request of my team worker who is in charge of Software, so I don’t know the purpose of it , I’ve just made connection between MCU pins and Through hole for header pin)

and here is ERC report

ERC report (10/05/2019 15:58:52, Encoding UTF8 )

***** Sheet /

***** Sheet /BLUETOOTH/

***** Sheet /FAN_HV_12V/

***** Sheet /DUST 5V/

***** Sheet /PW CHARGER/

***** Sheet /TOUCH, LED/

***** Sheet /MCU/
ErrType(3): Pin connected to other pins, but not driven by any pin
@(269.24 mm, 33.02 mm): Pin 2 (Input) of component CONN1 is not driven (Net 41).
ErrType(3): Pin connected to other pins, but not driven by any pin
@(269.24 mm, 27.94 mm): Pin 1 (Input) of component CONN1 is not driven (Net 42).
ErrType(3): Pin connected to other pins, but not driven by any pin
@(193.04 mm, 93.98 mm): Pin 32 (Input) of component U9 is not driven (Net 63).
ErrType(3): Pin connected to other pins, but not driven by any pin
@(193.04 mm, 97.79 mm): Pin 31 (Input) of component U9 is not driven (Net 64).
ErrType(3): Pin connected to other pins, but not driven by any pin
@(252.73 mm, 152.40 mm): Pin 2 (Passive) of component BD2 is not driven (Net 68).

** ERC messages: 5 Errors 0 Warnings 5

thanks for reading

[eelik]

ErrType(3): Pin connected to some others pins but no pin to drive it

Additional reading about pin types in general: https://forum.kicad.info/t/electrical-type-of-schematic-symbol-pins/9439 A good explanation about power symbols can be found in this stackexchange answer by @Seth_h KiCad does check if every component is connected to supply lines (*1) as a missing supply is a common mistake to make. Getting the error “ErrType(3): Pin connected to some others pins but no pin to drive it” means that KiCad thinks that some supply pin is not properly connected. Eithe…

[S.JIN]

Thanks eelik

but actually I’ve read it before.
these pins are not for power input or output, just signal connection. so I don’t think I should use Power Flag to solve warning.

and what do you think about this?
(I think I missed something, because I’m not good at reading English , so I had many times of misunderstanding. but if you let me know what I am misunderstanding I really appreciate it)

PS : I just solved warning, I change through hole pin 1, 2 from input to output, then warning is gone
thanks

[pedro]

What is the pin type of pins 1 and 2 of the connector?

I know you want them to be a signal, but could you edit the pin and check?

[S.JIN]

they was input type, but I modified it as output
and this is before and after below (left to right)
(and all MCU pins are input type)

[Efcis]

You would better set all connectors pins to passive (not input or output). A connector is a passive device, not an active one.

[Rene_Poschl]

@Efcis

You would better set all connectors pins to passive (not input or output). A connector is a passive device, not an active one.

Project specific connector symbols can reflect the function of the device connected to it off board. It is a totally legitimate usecase but requires understanding of ERC as simply changing the pin types till it stops complaining is not really the right solution.