IOSTANDARD LVDS_25 Error after upgrade to ISE 9.2i

Jul 23, 2007 0 Replies

Hey everyone,



I just recently upgraded from ISE 8.2i to 9.2i (service pack 1) and now i'm getting an error in my UCF file. Error appears while running map.



ERROR:Pack:946 - The I/O component "o_ddr_clk" has an illegal IOSTANDARD value. Components of type IOB do not support IOSTANDARD LVDS_25. Please correct the IOSTANDARD property value.



Here's the part of the UCF file it's referring to:



NET "o_ddr_clk" IOSTANDARD = LVDS_25;



As far as i knew (or could check online today) LVDS_25 is still a valid IOSTANDARD value for Virtex II Pro (which is what im using).



Anyone else get a similar error after an upgrade to 9.2.01i or heard of anything like this?



Cheers,



Rob.



Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required