[Discuss-gnuradio] Source Block - Flow Control

[David Halls]

Dear All,

 

I am wondering how to add some flow control to a source block, so that  it doesn’t fire out items so quickly.

 

Later stages of my flow graph are slowed by various bits of processing and combining, before transmission via USRP, with bursts being transmitted every few seconds.

 

What happens is that the block fires out 1,000s of vectors, and then seems to slow down and settle into sync with the rest of the flow graph after a few seconds. As my source block is reading in from a Database, I want to slow this initial rate significantly.

 

The block outputs vectors of bytes (v_len=144). Any ideas?

 

Regards,

 

David

 

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David Halls Ph.D.

Research Engineer

Toshiba Research Europe Limited

32 Queen Square, Bristol, BS1 4ND, UK

Tel: +44 (0) 117 906 0790

 

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