Yes, I am configuring the TxCLK pin as an input because I am sending it through "TXCLKI_CMOS" pin in the "FMC adapter", as I have previously explained. I am also sending through "MAIN CLOCK INPUT" SMA pin the DACCLK signal.
All my setup is explained in the first two posts!
However, maybe I am doing something wrong..so, if you think that all my setup is correct, can you tell me another reasons for my problem?