Forum Discussion
Altera_Forum
Honored Contributor
15 years agousing lvds
G´day !! I´m using an ADC with differential output (LVDS). It´s a device including 8 ADCs with Serial LVDS output. Data from each ADC is serialized and provided on a seperate channel. This seri...
Altera_Forum
Honored Contributor
14 years ago --- Quote Start --- I didn't yet observe the reported warning and don't know why it's generated in your design. May be it's due to the ad_in2_tmp wire signal. Actually Cyclone IV uses LE registers for ddio_in, so the warning is irrelevant in any case. You should primarly look for succesful timing closure and first of all correct operation of actual hardware design. --- Quote End --- Cyclone IV uses LE registers for ddio_in, but it seems that the input of ddio_in cannot connect I/O pin directly, right?