Re: FPGA IMPLEMENTATION OF DATA ENCRYPTION STANDARD ALGORITH
UART is an interface that helps to communicate PC and FPGA.
You need to have a code for that purpose in FPGA. There is ready-to-use tools in PC like Hyper-Terminal, Docklight, RealTerm to implement the uart protocol...
And you can also find uart codes for FPGA(in VHDL or Verilog) at opencores.org...
When you understand how to use uart module, you can easily transmit and receive data between FPGA and PC.
Of course, there should be a physical connection, do not forget!
Try to find uart codes, but you don't need to understand the detail of it. It becomes complicated. Just try to understand how to use this block. For eg, how you can understand data is ready to receive, data is ready to transmit.. something like that...
Find its documents, read them..