How to simulate SRAM with modelsim on a NIOS II system?

[Altera_Forum]

Hello all, 

 I'm working on my own NIOSII custom board. My board has a SRAM, Flash and SDRAM memories.  My question is:  what is the process to obtain a sram simulation model for my testbench in modelsim?  For the SDRAM, I use the altera SDRAM controller and I selected the simulation model checkbox in the component editor so it is ok, but for the SRAM and the FLASH which are on the same tristate avalon bridge I can't select any option to create simple SRAM or FLASH simulation models. I created SRAM and FLASH avalon controllers with component editor option (just added avalon interface for both memories in fact).   I saw that there is a simulation model checkbox option for the provided SRAM controller from Altera dev kits, is it possible to retreive a simple SRAM vhdl model for my own SRAM or do I need to code it from scratch?  Thank you in advance for any help on that topic.  Regards, -Pierre

[Altera_Forum]

Hello Pierre, 

 for the DDR2 HP controller, Altera supplies also "simple" functional simulation models, probably not for SDRAM. I used manufacturer models(e. g. Micron RAM or Spansion Flash) with previous simulations.  Regards,  Frank