Re: [Discuss-gnuradio] Sending data to gnuradio

[Martin Braun]

On Thu, Jul 15, 2010 at 11:07:05AM -0400, Garrett Wenger wrote:
> I am trying to use a use a file source block to read data from a fifo so that
> eventually I can process data sent by another computer. 
> I wrote a simple c program to write data to the fifo and I have verified that
> it works, but I don't see any output on gnuradio's scope when I try to send
> data through.
> I've read through the file source block source code and from that my guess is
> that this is because when I initially start the program, the pipe is empty so
> the file source block continuously returns 0's.

Hi Garrett,

I've used gr_file_descriptor_ to successfully read/write to pipes. As
long as the pipe is empty, though, there should be no zeros. Are you
sure you're actually seeing zeros, and the whole thing is not stalling?

Cheers
MB

-- 
Karlsruhe Institute of Technology (KIT)
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KIT -- University of the State of Baden-Württemberg and
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