diff attached
It looks like the guts of the dqpsk2 demod changed but the grc file was
not updated. I vote for keeping the grc files with the python/c++ source.
-Josh
On 10/18/2010 02:06 PM, Benjamin Lonske wrote:
When I try to use the DPSK2 demod block in grc, I get the below error. The
issue seems to be that the grc block has different arguments than
dqpsk2_demod() in dqpsk2.py (see below). Am I missing something here? I am
using the gnuradio version 3.3.0.
Thanks,
Ben
===========
(GRC ERROR)
Traceback (most recent call last):
File
"/gnuradio/gnuradio-3.3.0/gnuradio-examples/grc/usrp/usrp_rx_dpsk.py", line
211, in<module>
tb = usrp_rx_dpsk()
File
"/gnuradio/gnuradio-3.3.0/gnuradio-examples/grc/usrp/usrp_rx_dpsk.py", line
125, in __init__
sync_out=True,
TypeError: __init__() got an unexpected keyword argument 'costas_alpha'
=============
(BLK2_DXPSK2_DEMOD.XML)
<block>
<name>DPSK2 Demod</name>
<key>blks2_dxpsk2_demod</key>
<import>from gnuradio import blks2</import>
<make>blks2.$(type)2_demod(
samples_per_symbol=$samples_per_symbol,
excess_bw=$excess_bw,
costas_alpha=$costas_alpha,
timing_alpha=$timing_alpha,
timing_max_dev=$timing_max_dev,
gray_code=$gray_code,
verbose=$verbose,
log=$log,
sync_out=$sync_out,
=============
(DQPSK2.PY)
class dqpsk2_demod(gr.hier_block2):
def __init__(self,
samples_per_symbol=_def_samples_per_symbol,
excess_bw=_def_excess_bw,
freq_alpha=_def_freq_alpha,
phase_alpha=_def_phase_alpha,
timing_alpha=_def_timing_alpha,
timing_max_dev=_def_timing_max_dev,
gray_code=_def_gray_code,
verbose=_def_verbose,
log=_def_log,
sync_out=False):
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diff --git a/grc/blocks/blks2_dxpsk2_demod.xml b/grc/blocks/blks2_dxpsk2_demod.xml
index ce8305c..5d6ae9f 100644
--- a/grc/blocks/blks2_dxpsk2_demod.xml
+++ b/grc/blocks/blks2_dxpsk2_demod.xml
@@ -11,7 +11,6 @@
<make>blks2.$(type)2_demod(
samples_per_symbol=$samples_per_symbol,
excess_bw=$excess_bw,
- costas_alpha=$costas_alpha,
timing_alpha=$timing_alpha,
timing_max_dev=$timing_max_dev,
gray_code=$gray_code,
@@ -19,8 +18,6 @@
log=$log,
sync_out=$sync_out,
)</make>
- <callback>clock_recov.set_alpha($costas_alpha)</callback>
- <callback>clock_recov.set_beta(0.25*$costas_alpha**2)</callback>
<callback>time_recov.set_alpha($timing_alpha)</callback>
<param>
<name>Type</name>
@@ -48,12 +45,6 @@
<type>real</type>
</param>
<param>
- <name>Costas Alpha</name>
- <key>costas_alpha</key>
- <value>0.175</value>
- <type>real</type>
- </param>
- <param>
<name>Timing Alpha</name>
<key>timing_alpha</key>
<value>0.100</value>
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