Nexys4DDR constraints information request

[Anding]

	DRC CFGBVS-1 Missing CFGBVS and CONFIG_VOLTAGE Design Properties:
	Neither the CFGBVS nor CONFIG_VOLTAGE voltage property is set in the current_design.
	Configuration bank voltage select (CFGBVS) must be set to VCCO or GND, and CONFIG_VOLTAGE must be set to the correct configuration voltage, in order to determine the I/O voltage support for the pins in bank 0.
	It is suggested to specify these either using the 'Edit Device Properties' function in the GUI or directly in the XDC file using the following syntax:
	set_property CFGBVS value1 [current_design] #where value1 is either VCCO or GND
	set_property CONFIG_VOLTAGE value2 [current_design] #where value2 is the voltage provided to configuration bank 0 Refer to the device configuration user guide for more information.
	

For the Nexys4DDR

1) should I use VCCO or GND for CFGBVS?

2) What is the value I should use for CONFIG_VLOTAGE

Once I have this information I can set the properties in the XDC file.  I know I could just ignore the warnings but that's a distraction, so I'd prefer to just complete the XDC file properly.

Many thanks,

[jpeyron]

Hi @Anding,

I believe you should add

set_property CONFIG_VOLTAGE 3.3 [current_design]
set_property CFGBVS VCCO [current_design]

to the xdc.

thank you,

Jon

[Anding]

Thank you jpeyron, I'll post again after I try those settings.