Hi Josh,
Just a quick note. I don't use ctrl+c to kill the graph. Instead I use the
kill button ( or F7).. Thanks again for the info provided.
Regards,
Zohair
Josh Blum-2 wrote:
>
>
>> It's working now! I changed it to 50ms instead of 10 and added the lines
>> in
>> the synchronisation for l
It's working now! I changed it to 50ms instead of 10 and added the lines in
the synchronisation for loop in mimo_usrp.cpp to see the amount of deviation
between usrps if they are synchronised:
float diff=(time_i.get_real_secs() - time_0.get_real_secs())*1000;
std::cerr<< boost::format("Time wa
sue
>>>>> with the configuration. In the following example, I disconnected the
>>>>> PPS
>>>>> on one of the boards. This is the result:
>>>>>
>>>>> Set time with unknown pps edge:
>>>>>1) set times ne
the MIMO block and
got
it working/not working.
Best regards,
zohair
Date: Fri, 9 Jul 2010 09:18:24 -0700
From: j...@joshknows.com
To: zohair...@hotmail.com
CC: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] UHD Announcement - July 6th 2010
3) set times next pps (synchronously)
g
ext pps (synchronously)
>>>> Error: time deviation between board 1 and board 0.
>>>> Board 0 time is 0.008782 seconds.
>>>> Board 1 time is 65.009945 seconds.
>>>>
>>>> gr_block_executor: source produced no
>>>> outp
;>>
>>>>
>>>> Dear Josh,
>>>>
>>>> Thanks for the info provided and the help.
>>>>
>>>> I
>>>> have 4 USRP2 boards, 2 separate function generators and 2 splitters to
>>>> supply PPS and REF clock with specs as in the FAQ
: Fri, 9 Jul 2010 09:18:24 -0700
From: j...@joshknows.com
To: zohair...@hotmail.com
CC: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] UHD Announcement - July 6th 2010
3) set times next pps (synchronously)
gr_block_executor: source produced no
output. We're marking it DONE.
T
n't
>> lucky enough to get something working.
>>
>> I am also interested to know if anybody has tried the MIMO block and got
>> it working/not working.
>>
>> Best regards,
>> zohair
>>
>>
>>
>>
>>> Date: Fri, 9 Jul 2010 09:18:24
ubject: Re: [Discuss-gnuradio] UHD Announcement - July 6th 2010
3) set times next pps (synchronously)
gr_block_executor: source produced no
output. We're marking it DONE.
This tells me that the alignment buffer is not finding a common
timestamp among the 4 channels or one or more channels i
gards,
zohair
> Date: Fri, 9 Jul 2010 09:18:24 -0700
> From: j...@joshknows.com
> To: zohair...@hotmail.com
> CC: discuss-gnuradio@gnu.org
> Subject: Re: [Discuss-gnuradio] UHD Announcement - July 6th 2010
>
>
> > 3) set times next pps (synchronously)
> >
3) set times next pps (synchronously)
gr_block_executor: source produced no
output. We're marking it DONE.
This tells me that the alignment buffer is not finding a common
timestamp among the 4 channels or one or more channels is not streaming
(perhaps a timestamp/setup issue). What does yo
e/uhd/host/lib/usrp/usrp2/io_impl.cpp:97
Waiting for reply. By the way, thank you for modifying the online manual :)
Best regards,
Zohair
Date: Thu, 8 Jul 2010 10:13:52 -0700
From: j...@joshknows.com
To: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] UHD Announcement - July 6th 20
rsday, July 08, 2010 12:16 PM
To: Discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] UHD Announcement - July 6th 2010
Dear Josh,
I have successfully installed the UHD branch from jblum.git repo and have
tried out using the MIMO sources available. I have a few points to raise
here regarding thi
Zohair,
1- I am using a PC with four Ethernet ports. I burned the firmware and the
fpga images created on 6-7-2010. Also, I tried assigning IP addresses from
the same subnetwork: 192.168.10.X/24. However, Only a single USRP2 is
discovered at a time while others are unreachable. (USRP2s IPs are
Regarding my post below, I have traced back the error and came to a result
that the error is occurring in device.cpp file. This line in the catch block
throws an error:
device::sptr dev = maker(dev_addr);
I beleive there is something wrong in : Arg: addr=192.168.10.11
192.168.20.11 192.168
ubject: Re: [Discuss-gnuradio] UHD Announcement - July 6th 2010
Dear Josh,
I have successfully installed the UHD branch from jblum.git repo and have
tried out using the MIMO sources available. I have a few points to raise
here regarding this release and block:
1- I am using a PC with four Ethernet
Dear Josh,
I have successfully installed the UHD branch from jblum.git repo and have
tried out using the MIMO sources available. I have a few points to raise
here regarding this release and block:
1- I am using a PC with four Ethernet ports. I burned the firmware and the
fpga images created on 6-
Excellent - I look forward to trying this out. In particular I'm very
happy to see the get_time_now() functionality, which it looks like
made it into the simple_usrp class as well. That is a very nice
addition since it enables exactly the sort of thing you've already
done with set_time_unknown_pps:
Hello all,
MIMO capabilities have just been added to the UHD. With N gigE ports and
N USRP2s, one can perform synchronous aligned receives.
A usrp_mimo class has been added to the UHD for construction of a mimo
enabled device configuration. And I have added the corresponding
gnuradio blocks:
19 matches
Mail list logo
