file error in testbench code

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pratika

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hi
I write a simple testbench code in questasim in which the inputs are reading with the file but some error is there like this
** Error: (vsim-7) Failed to open VHDL file "C:/input.txt" in rb mode.
#
# No such file or directory. (errno = ENOENT).can u please help me in solving this error
 

make sure your directory in which file is there , having read/write permission , if you are working in windows , you can check by right click , if working in linux then use "chmod 555 <dirname> "

check for the file permission also ... file should have read permission, and make sure you have write correct name.
 

does the file exist? putting it on the root would seem an odd place to put the input file.
 


how to check for read/write permission?
 

it might be possible your file path getting overridden , you can check modelsim.ini file, or put your file in same directory where you are having .v files , and then update the path and try to compile it.
 
What path have you given in your code under:
"file my_input : TEXT open READ_MODE is " ? Is it "C:/input.txt" ? Since it is looking for the file in C directory and could not find it there.
It is good to place the input file in your Project folder and give correct path name completely in your code.
 


file FI:TEXT open READ_MODE is "C:/input.txt";

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TrickyDicky said:
try to put it somewhere other than the c:\
Click to expand...
how?can u please tell me?
 

try "C:\input.txt" ;

change slash .. you have used "/" instead of "\"

let me know if this work ...

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"/" is used in unix dir system , "\" used to navigate files in windows ..
 
pratika said:
how?can u please tell me?
Click to expand...

Go to my computer - navigate to the c:\, then copy the file and move it elsewhere. Then modify the path in the VHDL

"/" works just fine in modelsim as it uses a unix like envirnment.
 

rahul.achates said:
try "C:\input.txt" ;

change slash .. you have used "/" instead of "\"

let me know if this work ...

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"/" is used in unix dir system , "\" used to navigate files in windows ..
Click to expand...

vsim -voptargs=+acc work.tb_top
# can't read "VoptStartup(VoptOptimize:method)": no such element in array
what does it mean/

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rahul.achates said:
try "C:\input.txt" ;

change slash .. you have used "/" instead of "\"

let me know if this work ...

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"/" is used in unix dir system , "\" used to navigate files in windows ..
Click to expand...

the same file error is showing
 

its showing the same error

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I hve attached the file
 

Attachments

  • file text.txt
    560 bytes · Views: 94

and what about input.txt?

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PS. this is not the testbench, just a small snippet.
 

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