Andrew,
We have never used the RS232 stuff, so there is no code for it right now.
Samples are not currently sent to the digital IO pins, but you could
modify the FPGA code to do that.
Matt
Andrew Borg wrote:
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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