UART ip core

[Vishnuk]

Hi, I am new to FPGA, can somebody tell me how to use uart ipcore , how can we modify the vhdl code for the same. iam working on basys 3 board.

[D@n]

Is this an IP core you have found somewhere?  If so, it should come with instructions.  Is this one you have built?  Then you should have an idea of how to set it up after building and testing it.  The answer also depends upon your environment.  Will this UART be used from a CPU/processor of some type?  Then you will need to connect it to a bus.  Bus interconnects and standards vary from one processor implementation to another.  Xilinx tends to use AXI or AXI-lite to connect their components.  I personally prefer Wishbone (WB) for its simplicity.  If your UART is not going to be accessed from a CPU, then the sky's the limit--how do you want to set it up?

Dan