I am using the WEC7 2.1b2 image with Apalis T30. By default, the transmit pin MXM pin 134 is set to GPIO instead of uart. I have tried various pin configs in the bootloader and registry, with no effect:
I am also unsure which altfn selects uart function. Altfn=1, alfn=2 or other?
The info here has been helpful, but I still can’t get it to work.