Hi Yaniv,

I'm not very familiar with Microblaze, but I'll try to help.

There are several possible reasons:

SDRAM cannot run at a higher frequency than Microblaze. So you need to reduce the SDRAM Clock to 52 MHz or speed up Microblaze core to 104Mhz.
Endianess. MicroBlaze is Big endian and SDRAM (IS61NLP25672) follow little Endian so need to assign Buses in inverted order. e.g:: address11 to address0 and adress10 to adress1 and so on ... also applying this for data, bank and DQM busses.
Issue of latching edge. SDRAM datasheet says to latch data at positive edge.

Regards,
Andrew Karpenkov

2013/5/10 Yaniv Shiber <yanivshiber@gmail.com>

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