Hi guys, Has anyone tried instantiating IOBUF in a Spartan-3E device? The IOBUF primitive for S3E has two new attributes namely IBUF_DELAY_VALUE and IFD_DELAY_VALUE:
IOBUF_inst : IOBUF generic map ( DRIVE => 12, IBUF_DELAY_VALUE => "0", IFD_DELAY_VALUE => "AUTO", IOSTANDARD => "DEFAULT", SLEW => "SLOW") port map ( O => output, IO => input_output, I => input, T => enable );
These two new attributes don't seem to be recognised by PAR, since translate generates these warnings:
WARNING:NgdBuild:486 - Attribute "IBUF_DELAY_VALUE" is not allowed on symbol "IOBUF_inst" of type "IOBUF". This attribute will be ignored. WARNING:NgdBuild:486 - Attribute "IFD_DELAY_VALUE" is not allowed on symbol "IOBUF_inst" of type "IOBUF". This attribute will be ignored.
Thus, signals don't get routed. I am using ISE 7.1.03 which as far as I am aware is the latest release. Any ideas what is wrong?
Best regards George