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Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

compilation error

Hi i am getting the following error during compilation cu any one help me plz

XLXI_33 : carry_ripple

port map (A(15 downto 0)=>XLXN_112(15 downto 0),

B(15 downto 0)=>XLXN_113(15 downto 0),

C_0=>XLXI_33_C_0_openSignal,

C_15=>open,

S(15 downto 0)=>XLXN_114(15 downto 0));

Error: Actual width (16) of port "A" on instance "carry_ripple:XLXI_33" is not compatible with the formal port width (36) declared by the instantiated entity

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    18 years ago

    Generally means you have a port width mismatch.

    A in the snippet above is defined as 15 downto 0, or 16 bits. Wherever you define the entity, you must have that corresponding port defined as 36 bits.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    18 years ago

    Thanks M.r stevie now i got it now its compiled ..............

    rgds

    rav