def attn_loop(channel):
global attn
print "Attenuation: ", attn
if attn > 0:
attenuator.digatt_set(attn)
print " I just set the attenuator."
print " Warming up."
time.sleep(10)
print " Running experiment..."
time.sleep(dur)
print " Experiment complete."
attn=attn-delta
else:
print " All attenuation steps complete."
import math import sys import numpy as np import time import synthesizer import attenuator import RPi.GPIO as GPIO freq = float(sys.argv[1]) attn = float(sys.argv[2]) resolution = 500000 try: #synthesizer.yig_set_lock(1) #print " I just set the yig." # while ~synthesizer.yig_check_lock(): attenuator.digatt_set(attn) print " I just set the digatt." time.sleep(1e-3) #synthesizer.yig_set_freq(freq, resolution) #print " I just set the yig." except KeyboardInterrupt: print "STOP" finally: GPIO.cleanup()
