When designing a Due Shield, should I connect ALL GND pins or just one GND pin to the Shield's GND plane?

[jsizer]

I am designing a Shield to interface with a Due, and this final detail has me torn. I'm using nearly every pin available on the Due, but practically all of them are logic signals (Logic and SPI), so I'm not sourcing much current from the Due. What I can't decide on though is whether I should connect ALL of the Due's GND pins to the Shield's GND plane (increase the current capability but create ground fault loops) or throttle all the current through a single GND pin.

I read [SOLVED] How to design PCB ground
and GND on ARDUINO UNO differences? , but had trouble deciding firmly which way to go here.

Which route do you guys recommend? I'm leaning towards connecting ALL GND's just due to the shear quantity of pins I have in use.

[Deva_Rishi]

I always connect all GND pins, There is no complication normally since a lot of the PCB is copper-fill connected to GND.

[Paul_B]

@jsizer

I should connect ALL of the Due's GND pins to the Shield's GND plane

Always!

@jsizer

increase the current capability

Not so much that as reducing impedance to minimise voltage drops and transient glitches.

@jsizer

but create ground fault loops

Nonsense!

[jsizer]

Great! Thank you. I really just needed that reassurance that I wasn't doing something dumb. Cheers!