Nios2 Crashes when SDRAM is shared

[Altera_Forum]

Hi, 

 I'm sharing my SDRAM between a Nios2 processor and a Avalon MM Master Writer that is performing write operation on the SDRAM.  The Nios2 processor is working fine until I perform a write operation which causes the processor to stop working (no more instruction seems to be performed any more).  How can I make it work ?  Thanks, Nemesys

[Altera_Forum]

At a guess your Avalon master is buggy - maybe not detecting the end of the write (or something) and locking the other masters out of the SDRAM. 

signaltap might be informative.

[Altera_Forum]

The Avalon MM Master Writer is an implementation of the Avalon MM template from Altera.

[Altera_Forum]

I figured I was writing in outside the SDRAM address map. Now it works properly.