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Re: [Discuss-gnuradio] Need help with USRP simulation test
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] Need help with USRP simulation test |
Date: |
Mon, 16 Feb 2009 12:26:26 -0800 |
User-agent: |
Mutt/1.5.18 (2008-05-17) |
On Sun, Feb 15, 2009 at 08:51:07AM -0500, Pete Kay wrote:
> Hi,
>
> I am running siggen and oscope test with USRP1.
>
> I am expecting a smooth sine waveform with this:
> address@hidden usrp]# usrp_siggen.py --sine -f 1e6 -i256
> Using TX d'board A: <none>
>
> But I am getting some error in oscope.py and the attached oscope output does
> not give me the expected waveform
> address@hidden ~]# usrp_oscope.py -g0 -d64
>
> ** (python:21011): WARNING **: IPP request failed with status 1030
>
> ** (python:21011): WARNING **: IPP request failed with status 1030
> uO
This funny message can be ignored. It's wxPython related.
> Does anyone know what is wrong with my setup?
You have no transmit daughterboard installed on side A.
You're sending a zero Hz sine wave.
$ usrp_siggen.py --help
Usage: usrp_siggen.py [options]
Options:
-h, --help show this help message and exit
-T TX_SUBDEV_SPEC, --tx-subdev-spec=TX_SUBDEV_SPEC
select USRP Tx side A or B
-f RF_FREQ, --rf-freq=RF_FREQ
set RF center frequency to FREQ
-i INTERP, --interp=INTERP
set fgpa interpolation rate to INTERP [default=64]
--sine generate a complex sinusoid [default]
--const generate a constant output
--gaussian generate Gaussian random output
--uniform generate Uniform random output
-w WAVEFORM_FREQ, --waveform-freq=WAVEFORM_FREQ
set waveform frequency to FREQ [default=0]
-a AMPL, --amplitude=AMPL
set waveform amplitude to AMPLITUDE [default=16000.0]
-g GAIN, --gain=GAIN set output gain to GAIN [default=none]
-o OFFSET, --offset=OFFSET
set waveform offset to OFFSET [default=0]
This will get you a sine wave out at 10.0 MHz:
$ usrp_siggen.py --const -f 10M -i 128
This will get you a sine wave out at 10.1 MHz:
$ usrp_siggen.py --sine -w 100k -f 10M -i 128
This will get you a sine wave out at 9.9 MHz:
$ usrp_siggen.py --sine -w -100k -f 10M -i 128
Eric