Re: [Discuss-gnuradio] GRC Hier block with vector IO not working as expected

[Felix W.]

Hi,

thanks for confirming that and pointing me to the right spot in the code. For now, I'll just fix it in the xml as I include them in the repo anyway.

Is this a known bug or should I file a bug report for this?

Regards,

Felix

2014/1/8 Johannes Demel <address@hidden>

Hi Felix,

I can reproduce it. Problem is that the generated 'xml' file is not generated correctly. The parameter 'vlen' should be written as '$vlen' in the xml files source/sink section but it is written as 'vlen'. Thus 'vlen' is treated as the value. Happens with 'v3.7.2-11-g3b27cc47'. I don't know how to fix it though.

Happy hacking

Johannes

On Wed, Jan 8, 2014 at 12:59 PM, Felix W. <address@hidden> wrote:

Hi list,

I'm currently in the process of porting my gr-drm project to the 3.7 API and now I'm a little bit stuck and hope that someone here can help me.

I want to create a hier block (in GRC) that accepts vectors as input and output. Their size is controlled by parameters like vlen_in and vlen_out. Unfortunately, the IO size of the generated hier block always stays 1, no matter what I use as parameter. I attached a minimal (pure GNU Radio) example flow graph and hier block that reproduces my problem. Maybe I overlooked something obvious, but I don't get why this is not working.

If someone had the time to try this and could report if it works (it does not for me), I would be very grateful.

I'm on Ubuntu 12.10 and have GNU Radio v3.7.2.1-116-ge751e54a installed.

Regards,
Felix Wunsch

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