Hi all, First of all i am new to FPGA and I am catching up with building simple designs using verilog codes. I have started to build a home made GPS receiver using Papilio one 500k and Arduino mega. Here is an example i am trying to replicate using my boards http://www.holmea.demon.co.uk/GPS/Main.htm We can see that the above project is built using custom board, i want to convert this model to work with my Papilio board and Arduino mega so that everyone can do research with it. To have a start i need to build my RF front-end, then modify the code to implement in my boards. I know i am asking more generic question, but i am happy to receive any idea and suggestion and comments. First : How to get a kick start on this project? second : what all the things i need to know ? Advanced thanks to those who are willing to help me out.