Hi all.
I am using the USRP and need to receive the output from the FPGA over
pins on the BasicRX board rather than through USB. I need to send
these signals to another FPGA board I am using on which I am running
a Java processor. I'd like to avoid going via USB as I do not have a
USB interface on this second board. I understand that the FPGA
already sends the output signal from the FPGA over 16 pins on the RX
board - I'm guessing that this is the I/Q complex number generated by
the FPGA. However, because of the different clocks on the 2 boards, I
need some sort of handshaking protocol. I therefore decided that I'll
try to send the signals over RS232.
I notice that there is an RS232 on the BasicRX board but I understand
from the schematics that this is not connected to the FPGA but to the
BasicTX board. I don't understand why this is so. Am I correct in
saying that there is no UART core on the FPGA sending the signal to
the two pins on the BasicRX board?