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Altera_Forum
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11 years ago

to_float() "right bound of range must be a constant" error

I'm using Quartus 7.2. When trying to compile this piece of code: variable denum : integer; variable num : integer; variable dividend : float (4 downto -27); ...
Altera_Forum's avatar
Altera_Forum
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11 years ago

I worked around this problem by converting the integer to unsigned. To convert integer to unsigned or signed data type over,

use IEEE.NUMERIC_STD.all;you must use,

to_unsigned(I,U’length);to_signed(I,S’length)where I is the integer value and U'length is the unsigned vector length ( the number of bit ).

The to_float(unsigned) function doesn't cause any problems.