Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

simulate DDR2 controller with Micron DDR2 Model

I generated DDR2 controller in QuartusII for MT47H64M16BT-37E (This DDR2 simulation model was downloaded from Micron). However in the modelsim simulation, it failed with the following message: ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Alright so these messages are being provided by the Micron DDR2 model to let you know that you (in this case the Altera DDR2 controller) are violating some of the access times. Sometimes these errors can be meaningless particularly when the simulation starts up.

However, I would check the parameter settings file for the simulation model and make sure that you have selected a part and speed grade that matches what you've chosen for the Altera DDR2 controller. I'm guessing that is most likely your problem. If you've got the wrong speed grade, you'll likely get these errors.

Jake