Re: [Discuss-gnuradio] grc-mimo setup

[Mike Jameson]

A sample rate of 32e3 is very low.  I suggest trying with a minimum sample rate of 100e6/128 (always divide the N210's master clock rate by an even number to use as a sample rate) which is 781250.

Mike

--
Mike Jameson M0MIK BSc MIET
Ettus Research Technical Support
Email: address@hidden
Web: http://ettus.com

On Thu, May 15, 2014 at 1:55 PM, xianda <address@hidden> wrote:

Hi Mike
Thank you for your reply.
Now I change the addr but a new error comes:
thread[thread-per-block[1]: <block gr uhd usrp sink (13)>]: LookupError: KeyError: Cannot find an item size:

thread[thread-per-block[2]: <block gr uhd usrp source (12)>]: LookupError: KeyError: Cannot find an item size:

Can you help me?Thank you.

Best regrads

At 2014-05-15 20:48:44,"Mike Jameson" <address@hidden> wrote:

Your device hint in the 'Device Addr' section of the 'UHD Source' block should be "addr=192.168.10.2" and in a separate 'UHD source' block the "Device Addr" should be "addr=192.168.10.3"

Mike

--
Mike Jameson M0MIK BSc MIET
Ettus Research Technical Support
Email: address@hidden
Web: http://ettus.com

On Thu, May 15, 2014 at 1:39 PM, xianda <address@hidden> wrote:

 Hello all:
               Environment: 2 usrp N210,mimo cable(they connect with each other and share the Ethernet)
              
               And i use the gnuradio companion to set up a very simple example.And the example is attached on the email.And I run this simple example,an error comes:
              RuntimeError: ValueError: Could not resolve device hint "" to a single device.
 
              And ping 192.168.10.2 and ping 192.168.10.3,it's all ok.
              Can someone help me to solve it?Thank you very much.
Best regards

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