[Discuss-gnuradio] Fwd: gr-drm for GNU Radio 3.7 available

[Felix W.]

Forgot to include the mailing list...

---------- Forwarded message ----------
From: Felix W. <address@hidden>
Date: 2014-03-31 10:20 GMT+02:00
Subject: Re: [Discuss-gnuradio] gr-drm for GNU Radio 3.7 available
To: Jordan Johnson <address@hidden>

About the "no module named drm" error: Obviously the needed library is not found. Normally, a "sudo ldconfig" should solve this, but only if it can find it. So your library has to be placed somewhere in the standard paths like "usr/local/lib", where also the other GNU Radio libraries are located. Looking at the man page of "ldconfig" it seems that you can also give it a path to your shared library. Maybe that's already enough.

Because you couldn't execute the hierarchical blocks the respective files were not generated and this is why they are missing when you open the transmitter flow graph. GRC is just telling you that the MLC blocks are missing and therefore it can't connect them to the adjacent blocks.

To sum it up: Try to find out where the working GNU Radio files such as XML files and shared libraries are placed and install the DRM stuff there. Unfortunately, I'm not familiar with the differences between Arch and Ubuntu so I'm sorry that I can't give you more detailed instructions.

Keep me posted about your progress!

2014-03-31 9:56 GMT+02:00 Jordan Johnson <address@hidden>:

Shoulda figured. Arch likes to put things in /usr/local/share as opposed to /usr/local.  Has caused problems with some programs in the past. However, it looks like it put things in several wrong spots. As running the heir-blocks graphs gets me this:

"No module named drm"

No missing blocks there, DRM section appears.

On top of it, on opening the transmitter flowgraphs, I am confronted with this:

>>> Error: Block key "drm_mlc_16qam_vbvc" not found in Platform - grc(GNU Radio Companion)
>>> Error: Block key "drm_mlc_64qam_sm_vbvc" not found in Platform - grc(GNU Radio Companion)
>>> Error: Block key "drm_mlc_4qam_vbvc" not found in Platform - grc(GNU Radio Companion)
>>> Error: Connection between drm_mlc_64qam_sm_vbvc_0(0) and drm_interleaver_vcvc_0(0) could not be made.
    source block id "drm_mlc_64qam_sm_vbvc_0" not in block ids
>>> Error: Connection between drm_scrambler_vbvb_0(0) and drm_mlc_64qam_sm_vbvc_0(0) could not be made.
    sink block id "drm_mlc_64qam_sm_vbvc_0" not in block ids
>>> Error: Connection between drm_scrambler_vbvb_0_1(0) and drm_mlc_16qam_vbvc_0(0) could not be made.
    sink block id "drm_mlc_16qam_vbvc_0" not in block ids
>>> Error: Connection between drm_mlc_16qam_vbvc_0(0) and cell_mapping_vcvc_0(1) could not be made.
    source block id "drm_mlc_16qam_vbvc_0" not in block ids
>>> Error: Connection between drm_scrambler_vbvb_0_0(0) and drm_mlc_4qam_vbvc_0_0(0) could not be made.
    sink block id "drm_mlc_4qam_vbvc_0_0" not in block ids
>>> Error: Connection between drm_mlc_4qam_vbvc_0_0(0) and blocks_stream_to_vector_0_0(0) could not be made.
    source block id "drm_mlc_4qam_vbvc_0_0" not in block ids

...should I re-make with different locations?

On Mon, Mar 31, 2014 at 12:32 AM, Felix W. <address@hidden> wrote:

Hi Jordan,

Nice to hear that you can use my code! I just tried to reproduce your problem on my machine (Ubuntu 12.10, GNU Radio v3.7.2.1-263-g78551a56) but all seemed to be fine.

So here are some guesses that come to my mind:

Did you make sure to reload the block list if GRC was already open by using the respective button on the top or did you restart GRC inbetween? You could also check (assuming you are on linux) if the blocks' XML files are placed in '/usr/local/share/gnuradio/grc/blocks' ? The 'install' output also shows where it copies stuff. After the install, you should also do a 'sudo ldconfig' although this should not keep the blocks from showing in GRC.

Let me know if there are any further problems!

Felix

2014-03-31 6:25 GMT+02:00 Jordan Johnson <address@hidden>:

Exciting! This should help one of my projects along nicely.

Problem is, they blocks do not show up....at all. I am using as up-to-date version of GNURadio that is available to pacman. The make goes fine, make-test passes with flying colors, and install appears fine too; no blocks though.  I attempted to place the blocks in the custom block folder; still no dice.

If it helps, packages and their versions:
gnuradio-3.7.2.1-2

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