I’ve managed to use the GPIO (at least the J12 8 pins), but it’s a bit hacky as the cables I use don’t have exactly the right size. What kind of connector do you use to connect to the GPIO? Do they have a specific name? Or do you have a reference to digikey or mouser website? I’m having trouble finding exactly the right one.
Also, are the 16 GPIO of the LimeSDR PCIe accessible from SoapySDR? Last time I checked there was only one bank called
MAIN and I couldn’t go above 255, which means 8 GPIO/bits. Maybe @joshblum has info on that?