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Re: [Discuss-gnuradio] The (in)famous channel 0 not receiving error

From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] The (in)famous channel 0 not receiving error
Date: Fri, 14 Jan 2011 15:36:17 -0500
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20101027 Fedora/3.0.10-1.fc12 Thunderbird/3.0.10

On 01/14/2011 03:28 PM, Steve Mcmahon wrote:

You say that "the UHD provides a different API than "classic", and usrp2_fft.py uses the "classic" API." I'm brand new to UHD and just getting started with it. Could you explain in a little more detail about the two APIs and the differences between them?
UHD provides a more uniform, device-independent, interface for applications to use, including GRC.

I'm using raw Ethernet now with a USRP2+WBX, so why would, when using GRC to create a flowgraph, the interface change?

GRC supports both "classic" and UHD API for USRP2.

I recommend UHD for all new users, since they have nothing to be backwards compatible with, and
  the UHD is an all-round better API for Gnu Radio applications to be using, since it supports
  USRP1, USRP2, N210, E100.  Further new daughercards and baseboards will only support UHD,
  so it make sense to switch to UHD.

Most of the examples in Gnu Radio haven't yet been updated to use the UHD interface, and that includes
  things like usrp2_fft.py.

Principal Investigator
Shirleys Bay Radio Astronomy Consortium

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