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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?
I guess I could put a UART core on the USRP FPGA
myself and output the RX and TX signals on a pair of pins. Has anyone attempted
to do this before.
Any help would be much appreciated.
Thanks.
Andrew Borg
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