VHDL question - strings in generics...

[Russell]

I used a string in a generic with the '&' operator (as shown in the
code fragment below), but it does not concatenate (ignores the part
after the &)

Do you know if concatenation is not allowed for generics?

entity mux is

generic (

PartNo : string := "12345" & "ABC"

);

port (

TxClk : in std_logic;

Etc...

Gives PartNo as "12345"

 

[Mark McDougall]

Do you know if concatenation is not allowed for generics?

Probably depends on your synthesis tool.

I've used string concatenation in constants with any problems, but never
generics as far as I can recall...

Regards,

 

[Russell]

silly me!

I had defined it (also) in the test bench at the top level of the simulation

 

[Mike Treseler]

I used a string in a generic with the '&' operator (as shown in the
code fragment below), but it does not concatenate (ignores the part
after the &)

That tool is broken. Report the bug.

-- Mike Treseler