Usrp2 not found (F LED light is glowing and D LED light is not glowing)

GNU Radio
1

Hi,

When I port the firmware and the u2_rev3.bin downloaded from the
repository,
everything works fine. But if I compile the usrp2 code given in the
repository ,generate the u2_rev3.bin, port the firmware and u2_rev3.bin
only
F led light glows and D led Light does not glow.

View this message in context:
http://old.nabble.com/usrp2-not-found-(F-LED-light-is-glowing-and-D-LED-light-is-not-glowing)-tp30505143p30505143.html
Sent from the GnuRadio mailing list archive at Nabble.com.

2

Which version of ISE do you use? What is the size of the bin file that
you
create?

----- Original Message -----
From: “anirudh2059.” [email protected]
To: [email protected]
Sent: Tuesday, December 21, 2010 5:52 AM
Subject: [Discuss-gnuradio] usrp2 not found (F LED light is glowing and
D
LED light is not glowing)

3

Hi all,

I am checking my usrp setup with benchmark_tx and benchmark_rx scripts.
The results I got were very odd, I want to ask your opinion about it.

HW setup:
I have two “nodes” and each node has 1x laptop, 1x USRP1 with 2x RFX2400
daughter cards.
The two RX/TX ports from a node are connected to coaxial cables then
combined, and the two cables from the two nodes are connected with 45dB
attenuator (miniCircuits).

Results:

  1. When the modulation scheme was set to dbpsk, there was no error, no
    packet was dropped.
  2. However, when the modulation scheme was set to dqpsk or d8psk, the
    error rate was 100% with many dropped packet.
  3. When the modulation scheme was set to gmsk, the error rate was about
    86% (without dropped packet)

NOTE: error rate = number of packets with error / total number of
received
packet

I did not go over the scripts, but the script recognized the USRP as
MIMO
system, I assume having two daughter boards is allowed.

Does anyone have any clue?
Thanks,

Thomas

4

Hi,

I am using ISE12.3 and the size of the .bin file created is 842.4 kb.

MorelGabriel wrote:

LED light is not glowing)

F led light glows and D led Light does not glow.

Discuss-gnuradio mailing list
[email protected]
Discuss-gnuradio Info Page

–
View this message in context:
http://old.nabble.com/usrp2-not-found-(F-LED-light-is-glowing-and-D-LED-light-is-not-glowing)-tp30505143p30511788.html
Sent from the GnuRadio mailing list archive at Nabble.com.