Vincent,

Thanks for this, but I do have a MIF file that looks correct, and I regenerated the core after I associated the COE file with the core - but it still has the same error.

Any help much appreciated!

Thanks

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Hi,

Modelsim needs a *.MIF file to know what is the ROM initialization in 
behavioral simulation. I am not sure if COREGEN creates one for you but 
I think so.
Anyway, if you change the coe file you have to regenerate the CORE to be 
sure ISE take it into account.
Find attached an example of a MIF file and COE file.
I hope this helps.

Vincent.

Adam wrote:
> I am using Modelsim XE II/Starter 5.7g to try and mdoel some ROM that I 
> have instantiated using COREGEN.
> 
> I have associated a .COE file with the ROM in COREGEN with the values 
> that I would like.
> 
> However I get an error message in Modelsim when I try to run the 
> simulation saying "failed to open VHDL file "romvalues.mif" in rb mode".
> 
> Does anyone know how I can set up the initial values in the ROM?
> 
> Thanks very much
> 
> Adam Morris


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 name="instmem_core.mif"
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Content-Disposition: inline;
 filename="instmem_core.mif"

10001100010000010000000000000001
00000100011000010000000000000001
00000100011000110000000000000001
10000100011000110000000000000001
10000100011000110000000000000001
00010000100000010000000000000000
00010000100000010000000000000001
00010000100000000000000000000001
00010000100000000000000000000000
00010000100000000000000000000001
00010100101000010000000000000001
00010100101000000000000000000000
00010100101000010000000000000000
00010100101000000000000000000000
00010100101000000000000000000001
00011100110000010000000000000001
00011100110000010000000000000000
00011100110000010000000000000001
00011100110000000000000000000001
00011100110000010000000000000001
00011100110000000000000000000000
00011100110000010000000000000001
00100100000000100000000000000000
10100100000000110000001000000000
10100100000001000000010000000000
10100100000001010000011000000000
10100100000001100000100000000000
00100000111000000000000000000000
10100001000000000000001000000000
10100001001000000000010000000000
10100001010000000000011000000000
10100001011000000000100000000000
01001000000000010100011000000001
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
01010010000000000000000000000000
00000000000000000000000000000000

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Content-Type: text/plain;
 name="instructions.coe"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="instructions.coe"

memory_initialization_radix=2;
memory_initialization_vector=
10001100010000010000000000000001,
00000100011000010000000000000001,
00000100011000110000000000000001,
10000100011000110000000000000001,
10000100011000110000000000000001,
00010000100000010000000000000000,
00010000100000010000000000000001,
00010000100000000000000000000001,
00010000100000000000000000000000,
00010000100000000000000000000001,
00010100101000010000000000000001,
00010100101000000000000000000000,
00010100101000010000000000000000,
00010100101000000000000000000000,
00010100101000000000000000000001,
00011100110000010000000000000001,
00011100110000010000000000000000,
00011100110000010000000000000001,
00011100110000000000000000000001,
00011100110000010000000000000001,
00011100110000000000000000000000,
00011100110000010000000000000001,
00100100000000100000000000000000,
10100100000000110000001000000000,
10100100000001000000010000000000,
10100100000001010000011000000000,
10100100000001100000100000000000,
00100000111000000000000000000000,
10100001000000000000001000000000,
10100001001000000000010000000000,
10100001010000000000011000000000,
10100001011000000000100000000000,
01001000000000010100011000000001,
00000000000000000000000000000000,
00000000000000000000000000000000,
00000000000000000000000000000000,
01010010000000000000000000000000,
00000000000000000000000000000000,
00000000000000000000000000000000;

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I am using Modelsim XE II/Starter 5.7g to try and mdoel some ROM that I have instantiated using COREGEN.  <br><br>I have associated a .COE file with the ROM in COREGEN with the values that I would like. <br><br>However I get an error message in Modelsim when I try to run the simulation saying "failed to open VHDL file "romvalues.mif" in rb mode".  <br><br>Does anyone know how I can set up the initial values in the ROM? <br><br>Thanks very much <br><br>Adam Morris