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Altera_Forum
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13 years ago

can <= concatenate into a big message when use it multiple times?

constant preamble : STD_LOGIC_VECTOR (7 DOWNTO 0) := '5555555555555555'; constant dest_mac_addr : STD_LOGIC_VECTOR (5 DOWNTO 0) := '1078D2AD90CB'; constant src_mac_addr : STD_LOGIC_VECTOR (5 D...
Altera_Forum's avatar
Altera_Forum
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13 years ago

Did you try to compile it? If this is part of a process it will fail because you can't instantiate a component inside a process. And even if you could, the multiple tx_data <= *** lines would be ignored and only the last one would be synthesized, giving CheckSumResult.

If it is outside a process then the compile will fail because you are trying to assign multiple values to tx_data.