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Altera_Forum's avatar
Altera_Forum
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11 years ago

error in pin planner

hello all, i got one error in pin planner that is Error (176172): Can't place node "hsync_n" -- node is a differential I/O node. with this post i am attached .Qsf file. i dont know why thi...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

http://www.alteraforum.com/forum/showthread.php?t=46925 (http://www.alteraforum.com/forum/showthread.php?t=46925)

As per my response to your other thread open with the same question...

A quick look at the .qsf you posted shows a conflict between the 'hsync_p' & 'hsync_n' signals. One is 1.8V, the other 2.5V.

I think you should be generating hsync as a differential signal. However, your qsf shows different single ended I/O standards for each half of the pair.

If you still need help let me know.

Happy New Year,

Alex