am using the ARTY 7 evaluation board from digilent which used the Artix-7 x35AT cpg324 packaging. Using one of the general purpose I/O banks i want to configure it for 1.8V configuration. (I am using this for 3-wire SPI to generate the spi clock and read the output from my ADC which are at 1.8V)
I looked through the documentation to configure this on the board and after going through all the relevant documents i am still unable to configure the I/O to LVCMOS18 standard.
Here is the table which mentions how to configure the files
And here is how i have configured in the XDC