Dir attila,
thank your reply,
below is our testing,
After selecting ADAPTER, and connect two place with wire, it can’t work,
Fig1,
Fig2
But when I replace small board to demoboard(put component as small board, and put 1kohm on demoboard),
it can measure resistor and capacitor(put 47nF, and 10kohm),
Fig3-1,
Fig3-2,
Fig3-3,
Fig4,
Fig5
So it seem there is problem in small board,
and I measure this red part on small board(schematic is from digilent website),
they are always 0 when I change resistor(as fig7),
so I think that the relay on small board can’t control the path,
Is it possible to fix it?
Fig 6
Fig7
thanks
stone