# To setup a measurement (will be useful for another piece of software):
# 1. Set Measurement Group
# 2. Set Measurement
# 3. Set View
# 4. Set Units
# 5. Set display scale and references
#-- Pause the measurement (has no effect if measurement is done)
swPausedMeas = False
instInitialStatus = interpretInstStatusWord(int(SR785.query("INST?")))
wstderr("\nInstrument status:\n" + PPstderr.pformat(instInitialStatus)+"\n\n")
#if instInitialStatus['STRT'] and not(instInitialStatus['PAUS']) and PAUSE_MEAS:
if instInitialStatus['STRT'] and not(instInitialStatus['PAUS']) and PAUSE_MEAS:
wstderr("\nPausing current measurement...\n")
SR785.tell("PAUS")
swPausedMeas = True
measParams = {
'display' : {},
'frequency' : {},
'sweptSineSrc' : {},
'input' : {},
'averaging' : {},
'trigger' : {},
'status' : instInitialStatus }
meas = {}
#-- Grab all meta-data pertinent to a swept sine measurement...
wstderr("\nQuerying all instrument parameters...\n")
#keys.sort()
#for key in keys:
# f.write(key + "=" + str(metaDataDict[key]) + "\r\n")
#f.write("completeConfig=" + completeConfigStr + "\r\n")
integral = np.float64(0)
iterNum = np.uint64(1)
try:
# TODO: does this actually tell you current freq when in sweep mode?
# if so, great, that's the desired behavior.
# TODO: Make sure that nothing I do changes the ref sync behavior
#-- Grab initial DDS frequency
freqStr = DDS.query("FREQ?")
oldVal = np.float64(freqStr)
#-- Set DDS in sine mode, if not already so
DDS.tell("AM:STATe OFF;:FM:STATe OFF;:FSKey:STATe OFF;:SWEep:STATe OFF;:BURSt:STATe OFF")
time.sleep(0.1)
#DDS.tell("FUNC SIN")
#DDS.tell("FREQ " + freqStr)
with open(qualDataFname, 'w') as f:
while True:
c = csv.writer(f)
#-- Beginning of time window
sampTime21 = time.time()
#-- Grab sample from error measurement
sample = tekScope.query("MEASU:MEAS1:VAL?")
#-- Check if it is off-scale (high or low)
if sample == "9.9E37":
from __future__ import division
import sys
from instrumentComms import InstrumentComms
def wstdout(txt):
sys.stdout.write(txt)
sys.stdout.flush()
def wstderr(txt):
sys.stderr.write(txt)
sys.stderr.flush()
if __name__ == "__main__":
#commsType = "Ethernet"
ipAddress = "128.118.112.2"
httpPort = 80
try:
#-- Set up with serial port comms
instrument = InstrumentComms(useSerial=True)
instrument.simpleSerial()
commsType = "serial"
except:
#-- If that failed, try to set up with Ethernet comms
instrument = InstrumentComms(useEthernet=True, ipAddress=ipAddress)
commsType = "Ethernet"
instrument.tell(sys.argv[1])
