I would like some help sorting out a problem I have with control port. I
have a python script that runs every second to gather the current status
of control port variables. It looks like that causes the flow-graph to
speed up somewhat. I set up a simple flow-graph to test it.
signal_source -> throttle -> probe_rate
I have the throttle set to 32k. If I don’t probe with my python script,
the probe rate settles in close to 32k on control port monitor window.
If I do have my python script running every second, then it averages
about 34k but bouncing around from 33 to 35k on control port monitor
window. I included my python script below.
Thanks.
Mark.
"Simplicity is prerequisite for reliability."
~ Edsger W. Dijkstra
-----------------------------------------
#!/usr/bin/python
# -*- coding: utf-8 -*-
import sys, os, time, struct
class MyApp(object):
def __init__(self, args):
from gnuradio.ctrlport.GNURadioControlPortClient import
GNURadioControlPortClient
program = sys.argv[0]
hostIP = sys.argv[1]
hostPort = sys.argv[2]
fileName = sys.argv[3]
GNURadioControlPortClient([program, hostIP, hostPort],
'thrift', self.store_radioclient)
knobs_dict = self.radioclient.getKnobs([])
f = open(fileName, 'w')
for prop in knobs_dict:
try:
self.radioclient.setKnobs(self.radioclient.getKnobs([prop]))
settable = True;
except:
settable = False;
print >> f, prop, '#', settable , '#',
str(knobs_dict[prop].value)
# print prop, ' has value ', str(knobs_dict[prop].value)
f.close()
def store_radioclient(self, client):
self.radioclient = client;
# print '"',self.radioclient,'"'
if __name__ == '__main__':
MyApp(sys.argv)
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