UniPHY DDR3 simulation is slow

[Altera_Forum]

I am using Modelsim to simulate a simple UniPHY DDR3 design and it takes ~10 minutes to finish the DDR3 calibration and assert the local_init_done signal. I did enable the Skip Calibration option in MegaWizard. Is there a way to check if calibration is really skipped? The DDR3 I am using runs on 300 MHz (50Mhz reference clock), no hard memory interface, and Avalon is set to Half Rate. Is there any way to speed this up?

[Altera_Forum]

If you are getting a message like this from ModelSim: 

  # ** Warning: Design size of 31489 statements exceeds ModelSim Altera Starter recommended capacity. # Expect performance to be adversely affected.   You should expect the simulation to be slow and the only way around it is to purchase a fully functional version of ModelSim.

[Altera_Forum]

--- Quote Start ---  If you are getting a message like this from ModelSim:   # ** Warning: Design size of 31489 statements exceeds ModelSim Altera Starter recommended capacity. # Expect performance to be adversely affected.   You should expect the simulation to be slow and the only way around it is to purchase a fully functional version of ModelSim.  --- Quote End ---    I am not seeing this or similar messages in the Modelsim transcript. My project is very basic. It contains one instance of the DDR3 IP and I am trying to do a simple write followed by a read. What performance should I expect with the Starter edition of Modelsim?  According to this article at http://www.altera.com/literature/hb/external-memory/emi_debug.pdf, full calibration should take 10 minutes and Skip calibration should take 3 minutes. Since my simulation time is right around 10 minutes, I am suspecting that I am doing a full calibration for some reason. Is there a way to check if calibration is really skipped?

[Altera_Forum]

--- Quote Start ---  I am not seeing this or similar messages in the Modelsim transcript. My project is very basic. It contains one instance of the DDR3 IP and I am trying to do a simple write followed by a read. What performance should I expect with the Starter edition of Modelsim?  According to this article at http://www.altera.com/literature/hb/external-memory/emi_debug.pdf, full calibration should take 10 minutes and Skip calibration should take 3 minutes. Since my simulation time is right around 10 minutes, I am suspecting that I am doing a full calibration for some reason. Is there a way to check if calibration is really skipped?  --- Quote End ---    Examine "calib_skip_steps" (e.g. "sim:/x_ddr3_tb/x_ddr3_inst/mem_if_ddr3_emif_0/p0/calib_skip_steps"); I believe it ought to be all 1's if you are actually skipping everything. In my simulation, 'local_init_done' goes high around 126us and takes maybe 2 minutes to get there, even with the project size warning I posted previously.

[Altera_Forum]

Hi all! 

 May I know where to check "calib_skip_steps" from the example link ted gave:(e.g. sim:/x_ddr3_tb/x_ddr3_inst/mem_if_ddr3_emif_0/p0/calib_skip_steps")?  My DDR3 UniPHY design is very basic with read and write operation. I use generated example design for simulation.  For my case, I choose skip calibration mode and also disable the EMIF On-Chip Debug Toolkit in Diagnostics tab of the UniPHY-based controller MegaWizard GUI. However, my overall simulation time take atmost 1 hour.  By the way, I also found Transcript from ModelSim state that:   Code: # ** Warning: Design size of 17487 statements exceeds ModelSim Altera Starter recommended capacity.# Expect performance to be adversely affected.  Is this really mean that fully purchase of ModelSim Altera can solve this issue? I would like to fasten the simulation as fast as possible like urs.  Thanks!

[Altera_Forum]

Hi all, 

 Can you tell me which device you guys are using?   i am working on a MAX10 device and i don't see an option to skip calibration mode and to disable EMIF On-chip debug Toolkit. I am wondering this is not available for MAX10 devices. Any help on this issue is appreciated.  Thanks