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Altera_Forum
Honored Contributor
15 years agoA trouble With Code
Hi all, well am a new VHDL programmer, and I was trying to write a code for a generic multiplier using a 4 bit ripple adder, the results are correct, but my design should include two modes, test m...
Altera_Forum
Honored Contributor
15 years agoKaz is right i think.Because simple meaning of the this common error "multiple constant driver" is that compiler is unable to assign more than one value to that specified stuff that u wanted.
Because your code is simultaneously assigning more than one values to output[10],so compiler always confuses out of two values,which one i should use.So it will generate an error of multiple constant driver To resolve this,always use intermediate variable,like "temp" for storing values and use value whenever u need it to your required output.