my final year project idea was to design and implement a time to digital converter in fpga and wirelessly transmitting this values to a remote PC.i've coded the program for tdc using verilog to fpga but i dont have any idea on how to interface fpga to xbee using spi interface or which xbee rf module to use?moreover i dont know how to wirelessly transmit these values to a remotePC using another xbee rf module and displaying the values on pc?im trying to transmit 19bit data along with checksum through spi to xbee in api packet and recieving the values with another xbee and to display only the values eliminating raw data....im new to digi forum so help me...