MIG (Memory Interface Generator)

[brilas]

Hello,

Simulation can't start when "MAX_MEM" mode is enabled. Warning and error pops out:

Device_TB_top.\MEM_INST3.u_mem_c3 .file_io_open: at time 0 WARNING: no +model_data option specified, using /tmp.

WARNING: at 0 fs: file /tmp/Device_TB_top.\MEM_INST3.u_mem_c3 .0 could not be opened

Device_TB_top.\MEM_INST3.u_mem_c3 .open_bank_file: at time 0 ERROR: failed to open /tmp/Device_TB_top.\MEM_INST3.u_mem_c3 .0.

The OS is Windows and as robinliuy indicated "tmp_model_dir is defined to a incorrect path for Windows".

Which file has +model_data option? Or in which file I need to specify it? 

Ignas

[rcingham]

Which FPGA?
Which version of ISE?
Which version of Windoze?

[brilas]

I'm sorry for forgeting such important things.

FPGA:Spartan 6, LX45T. (SP605 board)

ISE version: 13.2

OS:Win 7, 64bit.

[robinliuy]

Find it in "ddr3_model_c*.v" in sim folder.

[dann · Accepted solution]

you may need to adjust the size of the max mem perhaps?

[brilas]

"Find it in "ddr3_model_c*.v" in sim folder."
I know that the path for +model_data needs to be specified in this (ddr3_model_c*.v) file, but I actually couldn't find which file needs to have this option specified (consequently I couldn't specify a path for that file).
Could someone please indicate where +model_data option needs to be specified?

Gosh, it seems that at the first time I checked ddr3_model_parameters_c3.v file I happened to overlook the second MEM_BITS parameter which actually needs to be changed to use more available space of DDR3 instead of defining MAX_MEM. I can now use 2^15 bursts in my simulation :))

Thanks to you guys,
Ignas