I have written a small testing app to control the GPIO Pins of the Lime Mini. This works as advertised for the Lime Mini 1.0, but the Lime 2 seems to be different. I have not yet soldered the GPIO header on the Lime Mini 2, but from looking at the schematics I can see that there are already LEDs connected to the various GPIO pins. However none of the LEDs can be lit by poking into the registers, as is working for the Lime 1.
What do I miss here? In particular I am interested in the interworking of GPIO with the TX/RX Led for using it as a PTT switch for an external PA.
Any hints appreciated!