[Discuss-gnuradio] ofdm block

[Viktor Ivan Rodriguez Abdala]

Hi all,

I'm looking to develop a block called dfts ofdm, based in a similar 
block called ofdm mod, I change the .xml and .py to a new name called 
DFTSOFDM, but I can't make it work. In GRC I have the following error:

Traceback (most recent call last):
  File "/home/administrador/Simulacion/top_block.py", line 86, in <module>
    tb = top_block()
  File "/home/administrador/Simulacion/top_block.py", line 55, in __init__
    self.Umbrella_dftsofdm_mod_0 = 
grc_blks2.packet_mod_f(Umbrella.dftsofdm_mod(
AttributeError: 'module' object has no attribute 'dftsofdm_mod'


The new python file es dftsofdm.py, and I change the classes with

class dftsofdm_mod(gr.hier_block2):

class dftsofdm_demod(gr.hier_block2):

The .xml files have this changes:

Umbrella_dftsofdm_demod.xml

    <name>DFTSOFDM Demod</name>
    <key>Umbrella_dftsofdm_demod</key>
    <category>Umbrella</category>
    <import>import Umbrella</import>
    <import>from grc_gnuradio import blks2 as grc_blks2</import>
    <import>from gnuradio import digital</import>
<make>grc_blks2.packet_demod_$(type.fcn)(Umbrella.dftsofdm_demod(
        options=grc_blks2.options(
            modulation="$modulation",
            fft_length=$fft_length,
            occupied_tones=$occupied_tones,
            cp_length=$cp_length,
            snr=$snr,
            log=None,
            verbose=None,
        ),
        callback=lambda ok, payload: self.$(id).recv_pkt(ok, payload),
    ),
)</make>


Umbrella_dftsofdm_mod.xml

<block>
    <name>DFTSOFDM Mod</name>
    <key>Umbrella_dftsofdm_mod</key>
    <category>Umbrella</category>
    <import>import Umbrella</import>
    <import>from grc_gnuradio import blks2 as grc_blks2</import>
    <import>from gnuradio import digital</import>
<make>grc_blks2.packet_mod_$(type.fcn)(Umbrella.dftsofdm_mod(
        options=grc_blks2.options(
            modulation="$modulation",
            fft_length=$fft_length,
            occupied_tones=$occupied_tones,
            cp_length=$cp_length,
            pad_for_usrp=$pad_for_usrp,
            log=None,
            verbose=None,
        ),
    ),
    payload_length=$payload_length,
)</make>


Thanks

Ivan Rodriguez