def get_samples(self):
# Checks data collection to finish the capture
ready = ctypes.c_int16(0)
check = ctypes.c_int16(0)
while ready.value == check.value: # Note: we assume that the AUTOTRIGGER function is used here
self.status["isReady"] = ps.ps3000aIsReady(self.chandle,
ctypes.byref(ready))
# Handle = chandle
# start index = 0
# noOfSamples = ctypes.byref(cmaxSamples)
# DownSampleRatio = 0
# DownSampleRatioMode = 0
# SegmentIndex = 0
# Overflow = ctypes.byref(overflow)
self.status["GetValues"] = ps.ps3000aGetValues(
self.chandle, 0, ctypes.byref(self.cmaxSamples), 0, 0, 0,
ctypes.byref(self.overflow))
assert_pico_ok(self.status["GetValues"])
# Finds the max ADC count
# Handle = chandle
# Value = ctype.byref(maxADC)
maxADC = ctypes.c_int16()
self.status["maximumValue"] = ps.ps3000aMaximumValue(
self.chandle, ctypes.byref(maxADC))
assert_pico_ok(self.status["maximumValue"])
# Converts ADC from channel A to mV
adc2mVChAMax = adc2mV(self.bufferAMax, self.chARange, maxADC)
# Creates the time data
#time = np.linspace(0, (self.cmaxSamples.value) * timeIntervalns.value, self.cmaxSamples.value)
#print self.bufferAMax
#return np.array(self.bufferAMax,dtype='int16')
return np.array(adc2mVChAMax)
0,
None,
None)
assert_pico_ok(status["runblock"])
# Creates a overflow location for data
overflow = (ctypes.c_int16 * 10)()
# Creates converted types totalSamples
cTotalSamples = ctypes.c_int32(totalSamples)
# Checks data collection to finish the capture
ready = ctypes.c_int16(0)
check = ctypes.c_int16(0)
while ready.value == check.value:
status["isReady"] = ps.ps3000aIsReady(chandle, ctypes.byref(ready))
# Handle = chandle
# start index = 0
# noOfSamples = ctypes.byref(cTotalSamples)
# DownSampleRatio = 1
# DownSampleRatioMode = 0
# SegmentIndex = 0
# Overflow = ctypes.byref(overflow)
status["GetValues"] = ps.ps3000aGetValues(chandle, 0, ctypes.byref(cTotalSamples), 1, 0, 0, ctypes.byref(overflow))
assert_pico_ok(status["GetValues"])
print "Data collection complete."
# Obtain binary for Digital Port 0