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Altera_Forum's avatar
Altera_Forum
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13 years ago

"HREAD" is used but not declared"-Read text image data Error

Hi, I try simulate testbench code for read text image data (project example). I have includes all the package required (textio), but when I compile it I get this error: "Error (10482): V...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

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Yes, you can only run the testbench in modelsim. Textio is not appropriate for synthesys, hence why you cannot compile in Quartus.

The error you are getting is a type missmatch, you probably need to convert them using the to_signed(int, size) function.

If you are unfamiliar with this, and textio, I suggest you read some VHDL tutorials, as these are very basic parts of VHDL.

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Did you mean I need to convert constant Ce that includes all the alphabet to signed? Thanks for your concern Tricky!