Nios stops after upgrading Hardware from SRAM to DDR3 RAM

Hi Trukng

Sorry, I can't share my design.

I don't mix SRAM und DDR3. I have replaced an old SRAM und a SDRAM. Now I only have one DDR3 RAM for my NIOS. I'm trying to setup everything correctly, but there are just too many options like:

icache

dcache

burst/no burst

and in the DDR3:

burst size

reordering

errorcorrecting

I realized, that my dcache should be at least 32kByte. Then I don't have some system crashes. But the TCP-IP is not as fast as it was with the old SRAM/SDRAM.

I think it has to do with the line "alt_dcache_flush_all();". I think this process of flushing the dcache needs a lot of time.

I did some testing with the EMIF and everything seemd to be green, so my hardware design is ok.