I have spent the whole day trying to get the A axis working. Can't get any response from either the motor side or the limits side of A or B axis.
XYZ all work OK, but I need A to work at least.
The limit settings seem very strange too, nothing is working as expected. I might have to toss this board and get a different one.
I have another board I will dig out, it is also a 5 axis I think, but this one has a parallel port connection, so I will have to use my old Dell computer for that board.