Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

ALTLVDS IP: Can serdes channels be placed into different IO banks?

Hello! I'm using cycloneV and trying to place ALTLVDS IP channels into different banks. Both TX and RX IPs are used with external PLL and channels placed into a single bank works fine, but if i...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

it seems that the LVDS-Core is not able to route the Clock to all the high-speed-PINs. Try a free-run of the fitter (with no constraints for the Clock-PINs) to see what happens. Maybe you would need to use two different Clocks for the PLLs...