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Altera_Forum
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16 years ago

ALTLVDS pins io standard

hi, I am using ALTLVDS megacore for serialization and deserialization. the serializer has tx_out : OUT STD_LOGIC_VECTOR (0 DOWNTO 0) and the deserializer has rx_in : IN STD_LOGIC_VECTOR ...
Altera_Forum's avatar
Altera_Forum
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16 years ago

But I didn't assign them intentionally. They have been left from your design. I see now, that Quartus did not assign LVDS IO-standard for the renamed pins. If I assign it anew, the error reappears. In other words, my suggestion does not work.

It seems to me, that something is wrong with the newer alt_lvds MegaFunction, or with the way you invoked it. I'll try to recreate the respective module and see, if it can be connected to LVDS IO pins as I do since many years.