SRAM Prpblem

Hi to All I am trying to implement Xilinx microblaze on the umtrx2 with EMC core that connect to the external SRAM. I configured the EMC to Synchronous mode and I used the UCF that is published at the GITHUB. If I am trying to deluge the MCU without the EMC the MCU seem running, but when I connect the EMC, the MCU stuck and I cannot download the code through the JTAG. Please advise how to connect the EMC core to the external SRAM ? thanks in advance, Yaniv