On 12/03/2013 11:10 AM, Nemanja Savic wrote:
Hi all guys,
I would like to receive in my application signals from WBX board and
from LFTX simultaneousely.
At the moment, when I run the flow graph it ends immediately with core
dump, and zero divisin exception.
In the script, sources are defined in this way:
self.uhd_usrp_source_0 = uhd.usrp_source(
device_addr="",
stream_args=uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_source_0.set_subdev_spec("A:0", 0)
self.uhd_usrp_source_0.set_samp_rate(samp_rate_wbx)
self.uhd_usrp_source_0.set_center_freq(433900000, 0)
self.uhd_usrp_source_0.set_gain(input_gain_slider_wbx, 0)
self.uhd_usrp_source_0.set_antenna("RX2", 0)
and the second:
self.uhd_usrp_source_1 = uhd.usrp_source(
device_addr="",
stream_args=uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_source_1.set_subdev_spec("B:A", 0)
self.uhd_usrp_source_1.set_samp_rate(samp_rate_CC1000)
self.uhd_usrp_source_1.set_center_freq(freq_CC1000, 0)
self.uhd_usrp_source_1.set_gain(gain_CC1000, 0)
There are certain posts about using different firmware, but I am not
able to figure out what should I really do, and is that necessary?
Thanx for help,
Best,
--
Nemanja Savić
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You need to specify the dual-DDC image for USRP1:
usrp1_fpga_4rx.rbf
http://files.ettus.com/uhd_docs/manual/html/usrp1.html#specify-a-non-standard-image
--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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