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Altera_Forum
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14 years ago

'Illegal directional connection'error in Quartus 8.0

Hi all. Recently I compile a project in Quartus 8.0, it comes out the errors: Error: Illegal directional connection from the node "WPI_MODEL:inst|AnalogFault:I52|data_out[2]" to the pin "XD[...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

I have defined a 'inout' in top module

data : INOUT std_logic_vector (15 downto 0);

and then I call a component and use the data as bidiretional interface.

port map

(data_in=>data,

data_out=>data,).