Oscilloskope utility – using Ethernet

In [1]:

    

import matplotlib.pyplot as plt
import sys
import os
import time
import h5py
import numpy as np
import glob
import vxi11

# Step 0:
# Connect oscilloscope via direct Ethernet link
# Step 1:
# Run "Record" on the oscilloscope
# and wait for 508 frames to be acquired.
# Step 2:
# Run this cell to initialize grabbing.


# This will need a rewrite
class TmcDriver:

    def __init__(self, device):
        print("Initializing connection to: " + device)
        self.device = device
        self.instr = vxi11.Instrument(device)
 
    def write(self, command):
        self.instr.write(command);

    def read(self, length = 500):
        return self.instr.read(length)

    def read_raw(self, length = 500):
        return self.instr.read_raw(length)
 
    def getName(self):
        self.write("*IDN?")
        return self.read(300)
    
    def ask(self, command):
        return self.instr.ask(command)
 
    def sendReset(self):
        self.write("*RST")  # Be carefull, this real resets an oscilloscope
        
# Default oscilloscope record timeout [s]
loop_sleep_time = 60
        
# For Ethernet
#osc = TmcDriver("TCPIP::147.231.24.72::INSTR")
osc = TmcDriver("TCPIP::10.1.1.35::INSTR")
print(osc.ask("*IDN?"))


    

    




Initializing connection to: TCPIP::10.1.1.35::INSTR
RIGOL TECHNOLOGIES,DS6104,DS6A192700022,00.02.00.SP5

In [4]:

    

filename = 1
run_start_time = time.time()
    
if (filename == 1):
    for f in glob.iglob("./data2/*.h5"): # delete all .h5 files 
        print 'Deleting', f
        os.remove(f)
else:
    print 'Not removing old files, as filename {0} is not 1.'.format(filename)

while True:
    osc.write(':WAV:SOUR CHAN1')
    osc.write(':WAV:MODE NORM')
    osc.write(':WAV:FORM BYTE')
    osc.write(':WAV:POIN 1400')

    osc.write(':WAV:XINC?')
    xinc = float(osc.read(100))
    print 'XINC:', xinc,
    osc.write(':WAV:YINC?')
    yinc = float(osc.read(100))
    print 'YINC:', yinc,
    osc.write(':TRIGger:EDGe:LEVel?')
    trig = float(osc.read(100))
    print 'TRIG:', trig,
    osc.write(':WAVeform:YORigin?')
    yorig = float(osc.read(100))
    print 'YORIGIN:', yorig,
    osc.write(':WAVeform:XORigin?')
    xorig = float(osc.read(100))
    print 'XORIGIN:', xorig,
    

    osc.write(':FUNC:WREP:FEND?') # get number of last frame
    frames = int(osc.read(100))
    print 'FRAMES:', frames, 'SUBRUN', filename
    
    # This is not good if the scaling is different and frames are for example just 254
    # if (frames < 508):
    #    loop_sleep_time += 10
    
    with h5py.File('./data2/t'+'{:02.0f}'.format(filename)+'.h5', 'w') as hf:       
        hf.create_dataset('FRAMES', data=(frames)) # write number of frames
        hf.create_dataset('XINC', data=(xinc)) # write axis parameters
        hf.create_dataset('YINC', data=(yinc))
        hf.create_dataset('TRIG', data=(trig))
        hf.create_dataset('YORIGIN', data=(yorig))
        hf.create_dataset('XORIGIN', data=(xorig))
        osc.write(':FUNC:WREP:FCUR 1') # skip to n-th frame
        time.sleep(0.5)
        for n in range(1,frames+1):
            osc.write(':FUNC:WREP:FCUR ' + str(n)) # skip to n-th frame
            time.sleep(0.001)

            osc.write(':WAV:DATA?') # read data
            #time.sleep(0.4)
            wave1 = bytearray(osc.read_raw(500))
            wave2 = bytearray(osc.read_raw(500))
            wave3 = bytearray(osc.read_raw(500))
            #wave4 = bytearray(osc.read(500))
            #wave = np.concatenate((wave1[11:],wave2[:(500-489)],wave3[:(700-489)]))
            wave = np.concatenate((wave1[11:],wave2,wave3[:-1]))
            hf.create_dataset(str(n), data=wave)
    filename = filename + 1
    osc.write(':FUNC:WREC:OPER REC') # start recording
        
    print('  Subrun finished, Enter to continue.')
    raw_input()
    #time.sleep(5*60) # delay for capturing


    

    




XINC: 4e-08 YINC: 0.0003125 TRIG: 0.0146 YORIGIN: -119.0 XORIGIN: -7.959998e-06 FRAMES: 999 SUBRUN 1
  Subrun finished, Enter to continue.

XINC: 4e-08 YINC: 0.0003125 TRIG: 0.0146 YORIGIN: -119.0 XORIGIN: -7.959998e-06 FRAMES: 999 SUBRUN 2
  Subrun finished, Enter to continue.

XINC: 4e-08 YINC: 0.0003125 TRIG: 0.0146 YORIGIN: -119.0 XORIGIN: -7.959998e-06 FRAMES: 999 SUBRUN 3
  Subrun finished, Enter to continue.

XINC: 4e-08 YINC: 0.0003125 TRIG: 0.0146 YORIGIN: -119.0 XORIGIN: -7.959998e-06 FRAMES: 999 SUBRUN 4
  Subrun finished, Enter to continue.

XINC: 4e-08 YINC: 0.0003125 TRIG: 0.0146 YORIGIN: -119.0 XORIGIN: -7.959998e-06 FRAMES: 999 SUBRUN 5
  Subrun finished, Enter to continue.

XINC: 4e-08 YINC: 0.0003125 TRIG: 0.0146 YORIGIN: -119.0 XORIGIN: -7.959998e-06 FRAMES: 999 SUBRUN 6
  Subrun finished, Enter to continue.

XINC: 4e-08 YINC: 0.0003125 TRIG: 0.0146 YORIGIN: -119.0 XORIGIN: -7.959998e-06 FRAMES: 999 SUBRUN 7
  Subrun finished, Enter to continue.

XINC: 4e-08 YINC: 0.0003125 TRIG: 0.0146 YORIGIN: -119.0 XORIGIN: -7.959998e-06 FRAMES: 999 SUBRUN 8
  Subrun finished, Enter to continue.

XINC: 4e-08 YINC: 0.0003125 TRIG: 0.0146 YORIGIN: -119.0 XORIGIN: -7.959998e-06 FRAMES: 999 SUBRUN 9
  Subrun finished, Enter to continue.

XINC: 4e-08 YINC: 0.0003125 TRIG: 0.0146 YORIGIN: -119.0 XORIGIN: -7.959998e-06 FRAMES: 999 SUBRUN 10
  Subrun finished, Enter to continue.

XINC: 4e-08 YINC: 0.0003125 TRIG: 0.0146 YORIGIN: -119.0 XORIGIN: -7.959998e-06 FRAMES: 999 SUBRUN 11
  Subrun finished, Enter to continue.

XINC: 4e-08 YINC: 0.0003125 TRIG: 0.0146 YORIGIN: -119.0 XORIGIN: -7.959998e-06 FRAMES: 999 SUBRUN 12
  Subrun finished, Enter to continue.

XINC: 4e-08 YINC: 0.0003125 TRIG: 0.0146 YORIGIN: -119.0 XORIGIN: -7.959998e-06 FRAMES: 999 SUBRUN 13
  Subrun finished, Enter to continue.






    




---------------------------------------------------------------------------
KeyboardInterrupt                         Traceback (most recent call last)
<ipython-input-4-9f6100d9d28a> in <module>()
     70 
     71     print('  Subrun finished, Enter to continue.')
---> 72     raw_input()
     73     #print(' We were waiting for ', time.time() - run_start_time())
     74 

/usr/local/lib/python2.7/dist-packages/ipykernel/kernelbase.pyc in raw_input(self, prompt)
    692             self._parent_ident,
    693             self._parent_header,
--> 694             password=False,
    695         )
    696 

/usr/local/lib/python2.7/dist-packages/ipykernel/kernelbase.pyc in _input_request(self, prompt, ident, parent, password)
    722             except KeyboardInterrupt:
    723                 # re-raise KeyboardInterrupt, to truncate traceback
--> 724                 raise KeyboardInterrupt
    725             else:
    726                 break

KeyboardInterrupt: 

In [ ]:

    

first_run_start_time = time.time()
raw_input()
loop_sleep_time = time.time() - first_run_start_time + 15
print loop_sleep_time


    

In [9]:

    

loop_sleep_time=60


    

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