Advice on reversed pin order?

Layout Footprints
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I’m looking for some advice. I’m creating a cape to connect a small display to a Beaglebone. In the datasheet for the display, the flexible connector is numbered 1 to 10, with pin 1 going to 3.3 volts, etc… However, the footprint for the FPC connector has a pinout which is flipped. See the second screenshot which shows that when the display is plugged into the connector, pin 1 is connected to pin 10.

I went so far as to order this board from JLCPCB and seat all the components before I recognized the issue.

Is there a better way to keep track of these inverted pin numbers? I’d like to keep my schematic the same because according to the display datasheet, pin 1 really should be connected to 3.3 volts even though the connector footprint has a pin numbering that is inverted relative to the display datasheet.

What do you do to keep track of this kind of problem in designs?

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Best would be to use the datasheet to verify the pin numbering first and then if need be create your own footprint which matches the datasheet.

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  1. Hover the mouse above the connector symbol.
  2. Press M to Move. (This detaches the connector from the wires).
  3. Press Y to mirror the connector in the Y direction.
  4. Put it back in the same location.

But you write you do not want to change the schematic (I don’t understand, but I’ll go along) In that case, you can open the footprint in the footprint editor and manually change the pin numbering. (Also change the “pin one marker”).

But I also agree with GMC. Be very careful with changing pin order. It’s very easy to make mistakes here. For example, maybe your (yellow / orange) connector picture is rotated 180 degrees, which would also effectively flip the pin order.

4

Either this or if OP wants to keep schematic the same - copy the existing footprint and mirror the pins.

The other thing is - some ZIF connectors have contacts on top and bottom, so you can insert the FPC both way 0deg and 180deg. Perhaps all what you need to do is insert the display the other way around? Have a look mechanically how it works. Sometimes how FPC comes out from the display (especially if they are folded down behind the display) and how you it comes to the connector it gives you only one way to insert (which may be 180deg). The part of the display datasheet you pasted in your post above doesn’t have the info is it’s top or bottom view. Have a proper check before you modify anything.