Benchmark_rx.py with std_4rx_0tx.rbf

GNU Radio
1

The script benchmark_rx.py (located in gnuradio-examples/python/digital)
doesn’t run with the FPGA-file std_4rx_0tx.rbf. Is there any explanation
for this problem?

On the TX-side, I’m running benchmark_tx.py with the standard rbf-file
std_2rxhb_2tx.rbf. (Testing benchmark_rx.py with the standard rbf-file
on the RX-side works properly.)

My setup (both RX and TX):
GNU Radio (commit hash 3.3git-647-geb6ff48d, fetched 03.04.2010) running
on Ubuntu 8.10
USRP1 (RFX2400 daughterboard, omnidirectional antenna)

2

On Fri, Mar 05, 2010 at 11:27:00AM +0100, Christian Rohlfing wrote:

on Ubuntu 8.10
USRP1 (RFX2400 daughterboard, omnidirectional antenna)

Just to rule out a problem, are you trying to run both Tx and Rx
concurrently using a single USRP1 connected to a single computer?
If so, you need to specify the same .rbf file for both the Tx and Rx
sides, otherwise the last one opened stomps on the first one opened
when it reloads the FPGA with the “other” .rbf image.

Eric

3

GNU Radio (commit hash 3.3git-647-geb6ff48d, fetched 03.04.2010) running

Thanks for the quick reply. No, I’m using two computers with two USRP1s
with the same hardware specifications but different .rbf files.

Christian

4

I was not able to solve the problem yet.
Is it possible that someone could confirm the problem?