@User: Specifically, 11 GPIO pins from the original caravel were replaced. 8 of them have just a 1-pin connection (

io_analog

) to the analog wrapper. 3 of them have the same 1-pin connection (

io_analog

) but also 2 clamp connections (

io_clamp_high

and

io_clamp_low

). If you use those analog pins as power supplies, then you can connect the

io_clamp_high

to

io_analog

and connect

io_clamp_low

to the ground return (whichever pin you're using for that) so that you get some ESD protection on that supply line.