Re: [Discuss-gnuradio] Polyphase Filer examples and Busport Implementation for QT GUI Frequency Sink

On Sun, Feb 8, 2015 at 2:50 PM, Larry Van Der Jagt <vandel@gmail.com> wrote:

Hello:

In trying to execute the flowgraphs found in the blog post on the subject at:

http://www.trondeau.com/examples/2014/1/23/pfb-channelizers-and-synthesizers.html

I find that the Busport connections in flowgraphs such as fm_reconstruction.grc and others are broken when they connect to the QT frequency sink block.  I have been looking for information regarding the best way to fix these as there does not seem to be a link to the Bus_connection vector in the block.  I am working with GnuRadio 3.7.6.1 under Ubuntu 12.04 LTS

Any insight or leads are welcomed.

--

Larry Van Der Jagt

Hi Larry,

Unfortunately, this is a pretty nasty problem. I'm not sure where it came from, but it's likely due to some update in GRC (a while ago) that caused a slight change in formatting or parsing. The result is that the GRC files for this example have to be pretty much redone from scratch as far as I can tell. I'm not sure when I'll be able to get to this, either.

Tom