[Dspforum] Trying to output sample

[Doug Wenstrand]

Billy -- if you upload a zipped copy of the whole project to the website, I
can take look, there are other things that could cause this, such as the
memory model, the linker command file, and the libraries included.
You are correct -- that snippet is part of output_sample, and it is saying
that as far as it knows, the serial port (Mcbsp = Multi Channel Buffered
Serial Port) transmit register is not ready.  It will generally spend alot
of time there, 'cause your DDS should be faster than the rate at which the
CODEC wants samples (we sure hope!) However, a look at the entire project
would be beneficial

Doug

p.s. we might not have been clear about this; however in the future, we
don't want to send your entire C file and solution to the group forum.
 Snippets are ok.  Anyway, use your best judgement.

On Tue, Sep 15, 2009 at 6:03 PM, Jones, Billy <Billy.Jones at thalescomminc.com
> wrote:

>  I can’t figure out why, but my program hangs when calling
> output_sample(*).
>
>
>
> When I single step through the program, it takes me to the function in
> c6713dskinit.c, and it stops at  the line:   if (poll)
> while(!MCBSP_xrdy(DSK6713_AIC23_DATAHANDLE));.  The function comm_poll sets
> *poll* to be 1, so I think this is saying that the codec isn’t “ready” to
> receive packets.  Is this correct?  I’m calling output_sample(*) exactly the
> same as in the samples from the book, so I don’t know why it hangs in my
> program.
>
>
>
> Thanks.
>
>
>
>
>
> *Billy Jones*
>
> Digital Hardware Engineer
> *Thales Communications, Inc.*
>
> Land & Joint Systems Division
>
>
>
> Tel:    240-864-7323
>
> Fax:   240-864-7313
>
> Billy.Jones at Thalescomminc.com
>
>
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