Flags / xml to supress Add throttle warning?

GNU Radio
1

I’ve built an OOT for some physical SDR hardware.
However, when compiling a flowgraph in gnruradio-companion
it prints a warning message about no audio or rf sink, so please
insert a throttle.

Since my module actually paces the samples in hardware, I don’t
want a throttle. How can I supress the warning message?

Looking through some GRC blocks, I’ve found two tags:

1

and another is

throttle

Reading the documentation that discusses XML tags in the block,
http://gnuradio.org/redmine/projects/gnuradio/wiki/GNURadioCompanion#Creating-the-XML-Block-Definition
it doesn’t mention these tags, or what they do. Is one of these the
correct way to suppress the flowgraph compile warning?

– Tom, N5EG

2

On 08/24/2015 11:26 PM, Tom McDermott wrote:

1
– Tom, N5EG

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I think the newer way is to use throttle

But for backwards compat, you can use 1

It’s an indicator to GRC that this block provides a flow-regulated data
stream.

3

Thanks. throttle it will be … (works fine).

– Tom, N5EG