Python: Phasemeter

#
# pymoku example: Phasemeter data logging
#
# This example demonstrates how you can configure the Phasemeter instrument
# and log single-channel phase and [I,Q] data to a CSV file for a 10
# second duration.
#
# (c) 2019 Liquid Instruments Pty. Ltd.
#
from pymoku import Moku, StreamException
from pymoku.instruments import Phasemeter
import time

# Connect to your Moku by its device name
# Alternatively, use Moku.get_by_serial('#####') or Moku('192.168.###.###')
m = Moku.get_by_name('Moku')

try:
    # Deploy the new Phasemeter instrument to the Moku:Lab
    # Also, try to synchronise the Moku:Lab to an external 10MHz reference
    i = m.deploy_instrument(Phasemeter, use_external=True)

    # Set the Channel 1 seed frequency to 10MHz and a sample rate of ~30Hz
    i.set_initfreq(1, 10e6)
    i.set_samplerate('slow')

    # Restart the frequency-tracking loop on Channel 1
    i.reacquire(ch=1)

    # Stop an existing log, if any, then start a new one. 10 seconds of both
    # channels to the SD Card (rather than internal storage). Using CSV format.
    i.stop_data_log()
    i.start_data_log(duration=10, use_sd=True, ch1=True,
                     ch2=False, filetype='csv')

    # Track progress percentage of the data logging session
    progress = 0
    while progress < 100:
        # Wait for the logging session to progress by sleeping 0.5sec
        time.sleep(0.5)
        # Get current progress percentage and print it out
        progress = i.progress_data_log()
        print("Progress {}%".format(progress))

    # Upload the log file to the local directory
    i.upload_data_log()
    print("Uploaded log file to local directory.")

    # Denote that we are done with the data logging session so resources may
    # be cleand up
    i.stop_data_log()

except StreamException as e:
    print("Error occured: %s" % e)
finally:
    m.close()