We are trying to use PMOD JC and JD as single ended instead of differential. We have changed the 0 ohm resistors on the ZedBoard to 200 ohm resistors like in the JA and JB PMODs We are using the Vivado tool suite. Whenever we write to JC1_P (or JD), JC1_N toggles. When we write to JC1_N, nothing happens and when we write to JC2_P then JC2_N toggles. What is the proper way to use the PMOD C and D as single ended??
