Error: PLL Output Counter parameter 'phase_shift' is set to an illegal value

Description

You might see this error when entering phase_shift values for output clocks in the Altera PLL megafunction in the Quartus® II software version 13.0:

Error: PLL Output Counter parameter 'phase_shift' is set to an illegal value of '<phase_shift value> ps' on node '<node name>.'

There is a bug in the Quartus® II software version 13.0 that can occur when you specify your PLL output counter phase_shift value in degrees in the Altera PLL megafunction.

Resolution

Open the Altera PLL megafunction and change your phase_shift value from degrees to ps.