file error in testbench code

[pratika]

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

 

[rahul.achates]

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.

 

[TrickyDicky]

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

 

[pratika]

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

how to check for read/write permission?

 

[rahul.achates]

are you working in windows or linux ?

 

[pratika]

are you working in windows or linux ?

in windows

 

[TrickyDicky]

Does the file exist? this usually occurs when the file does not exist.

 

[pratika]

Does the file exist? this usually occurs when the file does not exist.

ya file is there

 

[TrickyDicky]

try to put it somewhere other than the c:\

 

[rahul.achates]

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.

 

[kaiserschmarren87]

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.

 

[pratika]

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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try to put it somewhere other than the c:\

how?can u please tell me?

 

[rahul.achates]

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 ..

 

[TrickyDicky]

how?can u please tell me?

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.

 

[pratika]

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 ..

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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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 ..

the same file error is showing

 

[rahul.achates]

can you copy paste your TB here .. only that section where you are giving this file input

 

[pratika]

its showing the same error

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I hve attached the file

 

[TrickyDicky]

and what about input.txt?

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

 

[kaiserschmarren87]

Have you included "use std.textio.all;" / "use IEEE.std_logic_textio.all;" library ?