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