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Pico_3a_2w_6d_pwm_Interface_Level.py
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Pico_3a_2w_6d_pwm_Interface_Level.py
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#
# Hardware specific interface functions
# For Arduino pi pico Three analog + 2 AWG + 6 digital channel scope (1-25-2023)
# Written using Python version 3.10, Windows OS
#
try:
import serial
import serial.tools.list_ports
except:
root.update()
showwarning("WARNING","Serial Library not installed?!")
root.destroy()
exit()
#
# adjust for your specific hardware by changing these values in the alice.init file
CHANNELS = 3 # Number of supported Analog input channels
AWGChannels = 2 # Number of supported Analog output channels
PWMChannels = 0 # Number of supported PWM output channels
DigChannels = 6 # Number of supported Dig channels
LogicChannels = 6 # Number of supported Logic Analyzer channels
EnablePGAGain = 0 #
EnableAWGNoise = 0 #
AllowFlashFirmware = 1
Tdiv.set(10)
AWG_Amp_Mode.set(0)
AWGPeakToPeak = 3.29
DevID = "Pico PWM 3"
SerComPort = 'Auto'
TimeSpan = 0.01
ADC_Cal = 3.29
AWGRes = 1023 # For 8 bits, 4095 for 12 bits, 1023 for 10 bits
InterpRate = 4
EnableInterpFilter.set(1)
MaxSampleRate = SAMPLErate = 12500*InterpRate
MaxAWGSampleRate = int(1.0/0.000014) # set to 14 uSec
AWGSampleRate = MaxAWGSampleRate
LSBsizeA = LSBsizeB = LSBsizeC = LSBsize = ADC_Cal/4096.0
PhaseOffset = 12.5
HardwareBuffer = 4096 # Max hardware waveform buffer size
MinSamples = 2048 # capture sample buffer size
AWGBuffLen = 2048
Cycles = 1
SMPfft = MinSamples*InterpRate # Set FFT size based on fixed acquisition record length
#
VBuffA = numpy.ones(MinSamples*InterpRate)
VBuffB = numpy.ones(MinSamples*InterpRate)
VBuffC = numpy.ones(MinSamples*InterpRate)
VBuffD = numpy.ones(MinSamples*InterpRate)
VBuffG = numpy.ones(MinSamples*InterpRate)
MBuff = numpy.ones(MinSamples*InterpRate)
MBuffX = numpy.ones(MinSamples*InterpRate)
MBuffY = numpy.ones(MinSamples*InterpRate)
VmemoryA = numpy.ones(MinSamples*InterpRate) # The memory for averaging
VmemoryB = numpy.ones(MinSamples*InterpRate) # The memory for averaging
VmemoryC = numpy.ones(MinSamples*InterpRate)
VmemoryD = numpy.ones(MinSamples*InterpRate)
#
IACMString = "+1.65"
IA_Mode.set(1)
#
## hardware specific Fucntion to close and exit ALICE
def Bcloseexit():
global RUNstatus, Closed, ser
RUNstatus.set(0)
Closed = 1
#
try:
ser.write(b'Gx\n') # Turn off AWG
ser.write(b'gx\n') # Turn off AWG
# ser.write(b'sx\n') # turn off PWM
# try to write last config file, Don't crash if running in Write protected space
BSaveConfig("alice-last-config.cfg")
# May need to be changed for specific hardware port
ser.close()
# exit
except:
donothing()
root.destroy()
exit()
#
# Set Scope Sample Rate based on Horz Time Scale
#
def DummySetSampleRate():
global TimeSpan, MaxSampleRate, SHOWsamples, InterpRate, Tdiv
global TrigSource, TriggerEdge, TriggerInt, SAMPLErate, TimeDiv, ser
TimeDiv = UnitConvert(TMsb.get())
#
def SetSampleRate():
global TimeSpan, SHOWsamples, InterpRate, Tdiv
global MaxSampleRate, SAMPLErate, TimeDiv, ser
try:
TimeDiv = UnitConvert(TMsb.get())
except:
pass
#print("TimeDiv = ", TimeDiv)
if TimeDiv < 0.000099:
ser.write(b't5\n') # 90.909 KSPS
elif TimeDiv > 0.000099 and TimeDiv < 0.000199:
ser.write(b't6\n') # 90.909 KSPS
elif TimeDiv > 0.000199 and TimeDiv < 0.0005:
ser.write(b't8\n') # 90.909KSPS
elif TimeDiv >= 0.0005 and TimeDiv < 0.001:
ser.write(b't12\n') # 90.909 KSPS
elif TimeDiv >= 0.001 and TimeDiv < 0.002:
ser.write(b't16\n') # 62.5 KSPS
elif TimeDiv >= 0.002 and TimeDiv < 0.005:
ser.write(b't32\n') # 31.250 KSPS
elif TimeDiv >= 0.005 and TimeDiv < 0.01:
ser.write(b't64\n') # 15.625 KSPS
elif TimeDiv >= 0.01 and TimeDiv < 0.02:
ser.write(b't100\n') # 10 KSPS
else:
ser.write(b't200\n') # 5 KSPS
#
time.sleep(0.005)
#
#
def only_numerics(seq):
seq_type= type(seq)
return seq_type().join(filter(seq_type.isdigit, seq))
#
# Main function to request and receive a set of ADC samples
#
def Get_Data():
global ShowC1_V, ShowC2_V, ShowC3_V, ShowC4_V
global TgInput, VBuffA, VBuffB, VBuffC, VBuffG
global D0_is_on, D1_is_on, D2_is_on, D3_is_on
global D4_is_on, D5_is_on, D6_is_on, D7_is_on
global DBuff0, DBuff1, DBuff2, DBuff3, DBuff4, DBuff5, DBuff6, DBuff7
global D0line, D1line, D2line, D3line, D4line, D5line, D6line, D7line
global TRIGGERentry, TRIGGERsample, SaveDig, CHANNELS, TRACESread
# Get data from pi pico
#
SaveDig = False
if D0_is_on or D1_is_on or D2_is_on or D3_is_on or D4_is_on or D5_is_on or D6_is_on:
SaveDig = True
else:
SaveDig = False
#
if ShowC1_V.get() > 0 and ShowC2_V.get() > 0 and ShowC3_V.get() == 0:
Get_Data_Two()
elif ShowC1_V.get() > 0 and ShowC2_V.get() == 0 and ShowC3_V.get() > 0:
Get_Data_Two()
elif ShowC1_V.get() == 0 and ShowC2_V.get() > 0 and ShowC3_V.get() > 0:
Get_Data_Two()
elif ShowC1_V.get() > 0 and ShowC2_V.get() == 0 and ShowC3_V.get() == 0:
Get_Data_One()
elif ShowC1_V.get() == 0 and ShowC2_V.get() > 0 and ShowC3_V.get() == 0:
Get_Data_One()
elif ShowC1_V.get() == 0 and ShowC2_V.get() == 0 and ShowC3_V.get() > 0:
Get_Data_One()
elif ShowC1_V.get() > 0 and ShowC2_V.get() > 0 and ShowC3_V.get() > 0:
Get_Data_Three()
else:
return
# do external Gain / Offset calculations before software triggering
if ShowC1_V.get() > 0:
VBuffA = numpy.array(VBuffA)
VBuffA = (VBuffA - InOffA) * InGainA
if ShowC2_V.get() > 0 and CHANNELS >= 2:
VBuffB = numpy.array(VBuffB)
VBuffB = (VBuffB - InOffB) * InGainB
TRACESread = TRACESread + 1
if ShowC3_V.get() > 0 and CHANNELS >= 3:
VBuffC = numpy.array(VBuffC)
VBuffC = (VBuffC - InOffC) * InGainC
TRACESread = TRACESread + 1
if ShowC4_V.get() > 0 and CHANNELS >= 4:
VBuffD = numpy.array(VBuffD)
VBuffD = (VBuffD - InOffD) * InGainD
TRACESread = TRACESread + 1
# Find trigger sample point if necessary
# print("Array Len ",len(VBuffA), "SHOWsamples ", SHOWsamples)
LShift = 0
if TgInput.get() == 1 and ShowC1_V.get() > 0:
FindTriggerSample(VBuffA)
if TgInput.get() == 2 and ShowC2_V.get() > 0:
FindTriggerSample(VBuffB)
if TgInput.get() == 3 and ShowC3_V.get() > 0:
FindTriggerSample(VBuffC)
if TgInput.get() > 4:
TRIGGERentry.delete(0,"end")
TRIGGERentry.insert(0,0.5)
if TgInput.get() == 5:
FindTriggerSample(DBuff0)
if TgInput.get() == 6:
FindTriggerSample(DBuff1)
if TgInput.get() == 7:
FindTriggerSample(DBuff2)
if TgInput.get() == 8:
FindTriggerSample(DBuff3)
if TgInput.get() == 9:
FindTriggerSample(DBuff4)
if TgInput.get() == 10:
FindTriggerSample(DBuff5)
if TgInput.get() == 11:
FindTriggerSample(DBuff6)
if TgInput.get() > 0: # if triggering left shift all arrays such that trigger point is at index 0
LShift = 0 - TRIGGERsample
if ShowC1_V.get() > 0:
VBuffA = numpy.roll(VBuffA, LShift)
if ShowC2_V.get() > 0:
VBuffB = numpy.roll(VBuffB, LShift+2)
if ShowC3_V.get() > 0:
VBuffC = numpy.roll(VBuffC, LShift+2)
if SaveDig:
VBuffG = numpy.roll(VBuffG, LShift)
if D0_is_on:
DBuff0 = numpy.roll(DBuff0, LShift)
if D1_is_on:
DBuff1 = numpy.roll(DBuff1, LShift)
if D2_is_on:
DBuff2 = numpy.roll(DBuff2, LShift)
if D3_is_on:
DBuff3 = numpy.roll(DBuff3, LShift)
if D4_is_on:
DBuff4 = numpy.roll(DBuff4, LShift)
if D5_is_on:
DBuff5 = numpy.roll(DBuff5, LShift)
if D6_is_on:
DBuff6 = numpy.roll(DBuff6, LShift)
if D7_is_on:
DBuff7 = numpy.roll(DBuff7, LShift)
else:
VBuffA = numpy.roll(VBuffA, -2)
# VBuffA = numpy.roll(VBuffA, -8)
VBuffB = numpy.roll(VBuffB, -1)
# VBuffC = numpy.roll(VBuffC, -6)
##
def Get_Data_One():
global VBuffA, VBuffB, VBuffC, VBuffG
global ShowC1_V, ShowC2_V, ShowC3_V, ShowC4_V
global LSBsizeA, LSBsizeB, LSBsizeC
global MaxSampleRate, SAMPLErate, EnableInterpFilter
global ser, SHOWsamples, TRIGGERsample, TgInput, TimeSpan
global TrigSource, TriggerEdge, TriggerInt, Is_Triggered
global vct_btn, vdt_btn, HoldOff, MinSamples, Interp4Filter
global SaveDig, D0_is_on, D1_is_on, D2_is_on, D3_is_on
global D4_is_on, D5_is_on, D6_is_on, D7_is_on
global DBuff0, DBuff1, DBuff2, DBuff3, DBuff4, DBuff5, DBuff6, DBuff7
global D0line, D1line, D2line, D3line, D4line, D5line, D6line, D7line
#
Wait = 0.02
if SAMPLErate <= 4000:
Wait = 0.08
#
## send command to readout data
if ShowC1_V.get() > 0:
ser.write(b'0') # capture on A and D4
elif ShowC2_V.get() > 0:
ser.write(b'5') # capture on B and D4
elif ShowC3_V.get() > 0:
ser.write(b'6') # capture on C and D4
else:
return
#
time.sleep(Wait)
ratestring = str(ser.readline())
# print("Raw string ", ratestring)
if "stReal=" in ratestring: #
DTime = ratestring.replace("b'stReal=","")
DTime = DTime.replace("\\\\","")
DTime = DTime.replace("r","")
DTime = DTime.replace("n","")
DTime = DTime.replace("\\","")
DTime = DTime.replace("'","")
# print(DTime)
SampleTime = (UnitConvert(DTime)/MinSamples) * 1.0e-6 # convert to uSec
#SampleTime = UnitConvert(DTime) * 1.0e-6 # convert to uSec
# set actual samplerate from returned time per sample
MaxSampleRate = SAMPLErate = (1.0/SampleTime)*InterpRate
#print("Sample Time: ", SampleTime)
#print("Sample Rate = ", SAMPLErate )
#
iterCount = (MinSamples * 3) # 3 bytes for one channel plus digital byte
#
#StartTime = time.time()
VBuffRaw = []
ABuff = []
VBuff1=[]
VBuff2=[]
VBuff3=[]
BuffD=[]
time.sleep(Wait)
### Wait to buffer enough samples to satisfy the entire frame
# print("iterCount = ", iterCount)
Count = 0
waiting0 = ser.in_waiting
#print("Serial Length:", waiting0)
while waiting0 >= 1:
#print("Number Bytes waiting = ", waiting0)
# read in chunks divisible by 3
# Read an integer as two bytes, big-endian
time.sleep(0.04)
waiting0 = ser.in_waiting
if waiting0 > MinSamples:
VBuffRaw = ser.read(MinSamples)
Count = Count + MinSamples
elif waiting0 > 324:
VBuffRaw = ser.read(324)
Count = Count + 324
elif waiting0 > 108:
VBuffRaw = ser.read(108)
Count = Count + 108
elif waiting0 > 36:
VBuffRaw = ser.read(36)
Count = Count + 36
else:
VBuffRaw = ser.read(waiting0)
Count = Count + waiting0
#print("Count = ", Count)
index = 0
while index < len(VBuffRaw):
ABuff.append(VBuffRaw[index])
index = index + 1
# Count = Count + waiting0
#print("Length AB: Raw: ", len(ABuff), len(VBuffRaw))
waiting0 = ser.in_waiting
#print("Serial Length:", waiting0)
# time.sleep(Wait)
if Count >= iterCount: # Sample Buffer now full
# print("Count = ", Count, "iterCount = ", iterCount)
break
#
#EndTime = time.time()
#Elapsed = EndTime - StartTime
#print("Elapsed Time = ", Elapsed)
#print("received Bytes = ", Count)
#print("Length: ", len(ABuff))
#
waiting0 = ser.in_waiting
if waiting0 > 0:
print("Serial Length:", waiting0)
dump = ser.read(waiting0)
#Frams = 0
index = 0
while index < len(ABuff):
inputHigh = ABuff[index]
index = index + 1
inputLow = ABuff[index]
data = ((inputHigh*256)+inputLow)
VBuff1.append(data)
index = index + 1
BuffD.append(ABuff[index])
index = index + 1
#
# Interpolate data samples by 4X
#
index = 0
if ShowC1_V.get() > 0:
VBuffA=[]
while index < len(VBuff1): # build array
pointer = 0
while pointer < 4:
samp = VBuff1[index]
VBuffA.append(float(samp) * LSBsizeA)
if SaveDig:
VBuffG.append(BuffD[index])
pointer = pointer + 1
index = index + 1
SHOWsamples = len(VBuffA)
if EnableInterpFilter.get() == 1:
VBuffA = numpy.pad(VBuffA, (4, 0), "edge")
VBuffA = numpy.convolve(VBuffA, Interp4Filter )
VBuffA = VBuffA[4:SHOWsamples+4]
#
elif ShowC2_V.get() > 0:
VBuffB=[]
while index < len(VBuff1): # build array
pointer = 0
while pointer < 4:
samp = VBuff1[index]
VBuffB.append(float(samp) * LSBsizeB)
if SaveDig:
VBuffG.append(BuffD[index])
pointer = pointer + 1
index = index + 1
SHOWsamples = len(VBuffB)
if EnableInterpFilter.get() == 1:
VBuffB = numpy.pad(VBuffB, (4, 0), "edge")
VBuffB = numpy.convolve(VBuffB, Interp4Filter )
VBuffB = VBuffB[4:SHOWsamples+4]
#
elif ShowC3_V.get() > 0:
VBuffC=[]
while index < len(VBuff1): # build array
pointer = 0
while pointer < 4:
samp = VBuff1[index]
VBuffC.append(float(samp) * LSBsizeC)
if SaveDig:
VBuffG.append(BuffD[index])
pointer = pointer + 1
index = index + 1
SHOWsamples = len(VBuffB)
if EnableInterpFilter.get() == 1:
VBuffC = numpy.pad(VBuffC, (4, 0), "edge")
VBuffC = numpy.convolve(VBuffC, Interp4Filter )
VBuffC = VBuffC[4:SHOWsamples+4]
#
else:
return
VBuffG = numpy.array(VBuffG) * 1
# Extract Digital buffers if needed
if SaveDig:
VBuffG = VBuffG.astype(int)
if D0_is_on:
DBuff0 = VBuffG & 1
if D1_is_on:
DBuff1 = VBuffG & 2
DBuff1 = DBuff1 / 2
if D2_is_on:
DBuff2 = VBuffG & 4
DBuff2 = DBuff2 / 4
if D3_is_on:
DBuff3 = VBuffG & 8
DBuff3 = DBuff3 / 8
if D4_is_on:
DBuff4 = VBuffG & 16
DBuff4 = DBuff4 / 16
if D5_is_on:
DBuff5 = VBuffG & 32
DBuff5 = DBuff5 / 32
if D6_is_on:
DBuff6 = VBuffG & 64
DBuff6 = DBuff6 / 64
if D7_is_on:
DBuff7 = VBuffG & 128
DBuff7 = DBuff7 / 128
#
else:
SaveDig = False
DBuff0 = []
DBuff1 = []
DBuff2 = []
DBuff3 = []
DBuff4 = []
DBuff5 = []
DBuff6 = []
DBuff7 = []
#
def Get_Data_Two():
global VBuffA, VBuffB, VBuffC, VBuffG
global ShowC1_V, ShowC2_V, ShowC3_V, ShowC4_V
global LSBsizeA, LSBsizeB, LSBsizeC
global MaxSampleRate, SAMPLErate, EnableInterpFilter
global ser, SHOWsamples, TRIGGERsample, TgInput, TimeSpan
global TrigSource, TriggerEdge, TriggerInt, Is_Triggered
global vct_btn, vdt_btn, HoldOff, MinSamples, Interp4Filter
global SaveDig, D0_is_on, D1_is_on, D2_is_on, D3_is_on
global D4_is_on, D5_is_on, D6_is_on, D7_is_on
global DBuff0, DBuff1, DBuff2, DBuff3, DBuff4, DBuff5, DBuff6, DBuff7
global D0line, D1line, D2line, D3line, D4line, D5line, D6line, D7line
#
Wait = 0.02
if SAMPLErate <= 4000:
Wait = 0.08
#
## send command to readout data
if ShowC1_V.get() > 0 and ShowC2_V.get() > 0:
ser.write(b'1') # capture on A and B and D4
elif ShowC1_V.get() > 0 and ShowC3_V.get() > 0:
ser.write(b'2') # capture on A and C and D4
elif ShowC2_V.get() > 0 and ShowC3_V.get() > 0:
ser.write(b'3') # capture on B and C and D4
else:
return
#
time.sleep(0.010)
ratestring = str(ser.readline())
#print("Raw string ", ratestring)
if "stReal=" in ratestring: #
DTime = ratestring.replace("b'stReal=","")
DTime = DTime.replace("\\\\","")
DTime = DTime.replace("r","")
DTime = DTime.replace("n","")
DTime = DTime.replace("\\","")
DTime = DTime.replace("'","")
# print(DTime)
SampleTime = (UnitConvert(DTime)/MinSamples) * 1.0e-6 # convert to uSec
# SampleTime = UnitConvert(DTime) * 1.0e-6 # convert to uSec
# set actual samplerate from returned time per sample
MaxSampleRate = SAMPLErate = (1.0/SampleTime)*InterpRate
# print("Sample Time: ", SampleTime)
# print("Sample Rate = ", SAMPLErate )
#
iterCount = (MinSamples * 5) # 5 bytes for two channels plus digital byte
#
#StartTime = time.time()
VBuffRaw = []
ABuff = []
VBuff1=[]
VBuff2=[]
VBuff3=[]
BuffD=[]
VBuffG=[]
time.sleep(Wait*2)
### Wait to buffer enough samples to satisfy the entire frame
# print("iterCount = ", iterCount)
Count = 0
waiting0 = ser.in_waiting
while waiting0 >= 1:
# print("Number Bytes waiting = ", waiting0)
# read in chunks divisible by 5
# Read an integer as two bytes, big-endian
time.sleep(0.040)
waiting0 = ser.in_waiting
Chunk = 3 * MinSamples
if waiting0 > Chunk:
VBuffRaw = ser.read(Chunk)
Count = Count + Chunk
elif waiting0 > MinSamples:
VBuffRaw = ser.read(MinSamples)
Count = Count + MinSamples
elif waiting0 > 640:
VBuffRaw = ser.read(640)
Count = Count + 640
elif waiting0 > 320:
VBuffRaw = ser.read(320)
Count = Count + 320
elif waiting0 > 160:
VBuffRaw = ser.read(160)
Count = Count + 160
else:
VBuffRaw = ser.read(waiting0)
Count = Count + waiting0
#print("Count = ", Count)
#print("Length AB: Raw: ", len(ABuff), len(VBuffRaw))
index = 0
while index < len(VBuffRaw):
ABuff.append(VBuffRaw[index])
index = index + 1
# Count = Count + waiting0
waiting0 = ser.in_waiting
# print("Serial Length:", waiting0)
# time.sleep(Wait)
if Count >= iterCount: # Sample Buffer now full
# print("Count = ", Count, "iterCount = ", iterCount)
break
#
#EndTime = time.time()
#Elapsed = EndTime - StartTime
#print("Elapsed Time = ", Elapsed)
#print("received Bytes = ", Count)
#print("Length: ", len(ABuff))
#
waiting0 = ser.in_waiting
if waiting0 > 0:
# print("Serial Length:", waiting0)
dump = ser.read(waiting0)
#Frams = 0
index = 0
while index < len(ABuff):
inputHigh = ABuff[index]
index = index + 1
inputLow = ABuff[index]
data = ((inputHigh*256)+inputLow)
VBuff1.append(data)
index = index + 1
inputHigh = ABuff[index]
index = index + 1
inputLow = ABuff[index]
data = ((inputHigh*256)+inputLow)
VBuff2.append(data)
index = index + 1
BuffD.append(ABuff[index])
index = index + 1
#
# Interpolate data samples by 4X
#
index = 0
if ShowC1_V.get() > 0 and ShowC2_V.get() > 0:
VBuffA=[]
VBuffB=[]
while index < len(VBuff1): # build array
pointer = 0
while pointer < 4:
samp = VBuff1[index]
VBuffA.append(float(samp) * LSBsizeA)
samp = VBuff2[index]
VBuffB.append(float(samp) * LSBsizeB)
if SaveDig:
VBuffG.append(BuffD[index])
pointer = pointer + 1
index = index + 1
SHOWsamples = len(VBuffA)
if EnableInterpFilter.get() == 1:
VBuffA = numpy.pad(VBuffA, (4, 0), "edge")
VBuffA = numpy.convolve(VBuffA, Interp4Filter )
VBuffB = numpy.pad(VBuffB, (4, 0), "edge")
VBuffB = numpy.convolve(VBuffB, Interp4Filter )
VBuffA = VBuffA[4:SHOWsamples+4]
VBuffB = VBuffB[4:SHOWsamples+4]
#
elif ShowC1_V.get() > 0 and ShowC3_V.get() > 0:
VBuffA=[]
VBuffC=[]
while index < len(VBuff1): # build array
pointer = 0
while pointer < 4:
samp = VBuff1[index]
VBuffA.append(float(samp) * LSBsizeA)
samp = VBuff2[index]
VBuffC.append(float(samp) * LSBsizeC)
if SaveDig:
VBuffG.append(BuffD[index])
pointer = pointer + 1
index = index + 1
SHOWsamples = len(VBuffA)
VBuffA = numpy.pad(VBuffA, (4, 0), "edge")
VBuffA = numpy.convolve(VBuffA, Interp4Filter )
VBuffC = numpy.pad(VBuffC, (4, 0), "edge")
VBuffC = numpy.convolve(VBuffC, Interp4Filter )
#
VBuffA = VBuffA[4:SHOWsamples+4]
VBuffC = VBuffC[4:SHOWsamples+4]
elif ShowC2_V.get() > 0 and ShowC3_V.get() > 0:
VBuffB=[]
VBuffC=[]
while index < len(VBuff1): # build array
pointer = 0
while pointer < 4:
samp = VBuff1[index]
VBuffB.append(float(samp) * LSBsizeB)
samp = VBuff2[index]
VBuffC.append(float(samp) * LSBsizeC)
if SaveDig:
VBuffG.append(BuffD[index])
pointer = pointer + 1
index = index + 1
SHOWsamples = len(VBuffB)
if EnableInterpFilter.get() == 1:
VBuffB = numpy.pad(VBuffB, (4, 0), "edge")
VBuffB = numpy.convolve(VBuffB, Interp4Filter )
VBuffC = numpy.pad(VBuffC, (4, 0), "edge")
VBuffC = numpy.convolve(VBuffC, Interp4Filter )
VBuffB = VBuffB[4:SHOWsamples+4]
VBuffC = VBuffC[4:SHOWsamples+4]
#
else:
return
VBuffG = numpy.array(VBuffG) * 1
# Extract Digital buffers if needed
if SaveDig:
VBuffG = VBuffG.astype(int)
if D0_is_on:
DBuff0 = VBuffG & 1
if D1_is_on:
DBuff1 = VBuffG & 2
DBuff1 = DBuff1 / 2
if D2_is_on:
DBuff2 = VBuffG & 4
DBuff2 = DBuff2 / 4
if D3_is_on:
DBuff3 = VBuffG & 8
DBuff3 = DBuff3 / 8
if D4_is_on:
DBuff4 = VBuffG & 16
DBuff4 = DBuff4 / 16
if D5_is_on:
DBuff5 = VBuffG & 32
DBuff5 = DBuff5 / 32
if D6_is_on:
DBuff6 = VBuffG & 64
DBuff6 = DBuff6 / 64
if D7_is_on:
DBuff7 = VBuffG & 128
DBuff7 = DBuff7 / 128
#
else:
SaveDig = False
DBuff0 = []
DBuff1 = []
DBuff2 = []
DBuff3 = []
DBuff4 = []
DBuff5 = []
DBuff6 = []
DBuff7 = []
#
def Get_Data_Three():
global VBuffA, VBuffB, VBuffC, VBuffG
global ShowC1_V, ShowC2_V, ShowC3_V, ShowC4_V
global LSBsizeA, LSBsizeB, LSBsizeC
global MaxSampleRate, SAMPLErate, EnableInterpFilter
global ser, SHOWsamples, TRIGGERsample, TgInput, TimeSpan
global TrigSource, TriggerEdge, TriggerInt, Is_Triggered
global vct_btn, vdt_btn, HoldOff, MinSamples, Interp4Filter
global SaveDig, D0_is_on, D1_is_on, D2_is_on, D3_is_on
global D4_is_on, D5_is_on, D6_is_on, D7_is_on
global DBuff0, DBuff1, DBuff2, DBuff3, DBuff4, DBuff5, DBuff6, DBuff7
global D0line, D1line, D2line, D3line, D4line, D5line, D6line, D7line
#
Wait = 0.02
if SAMPLErate <= 4000:
Wait = 0.08
#
## send command to pico to readout data
if ShowC1_V.get() > 0 and ShowC2_V.get() > 0 and ShowC3_V.get() > 0:
ser.write(b'4') # capture on A, B and C and Digtial
else:
return
#
time.sleep(Wait)
ratestring = str(ser.readline())
# print("Raw string ", ratestring)
if "stReal=" in ratestring: #
DTime = ratestring.replace("b'stReal=","")
DTime = DTime.replace("\\\\","")
DTime = DTime.replace("r","")
DTime = DTime.replace("n","")
DTime = DTime.replace("\\","")
DTime = DTime.replace("'","")
# print(DTime)
SampleTime = (UnitConvert(DTime)/MinSamples) * 1.0e-6 # convert to uSec
# SampleTime = UnitConvert(DTime) * 1.0e-6 # convert to uSec
MaxSampleRate = SAMPLErate = (1.0/SampleTime)*InterpRate
# print("Sample Time: ", SampleTime)
# print("Sample Rate = ", SAMPLErate )
#
iterCount = (MinSamples * 7) # 7 bytes for three channels plus digital byte
#
VBuffRaw = []
ABuff = []
VBuff1=[]
VBuff2=[]
VBuff3=[]
BuffD=[]
time.sleep(Wait)
### Wait to buffer enough samples to satisfy the entire frame, and then
## toss anything left over
# print("iterCount = ", iterCount)
Count = 0
waiting0 = ser.in_waiting
while waiting0 >= 1:
# print("Number Bytes waiting = ", waiting0)
# read in chunks divisible by 8
# Read an integer as two bytes, big-endian
time.sleep(0.040)
waiting0 = ser.in_waiting
Chunk = 4 * MinSamples
if waiting0 > Chunk:
VBuffRaw = ser.read(Chunk)
Count = Count + Chunk
elif waiting0 > MinSamples:
VBuffRaw = ser.read(MinSamples)
Count = Count + MinSamples
elif waiting0 > 500:
VBuffRaw = ser.read(500)
Count = Count + 500
elif waiting0 > 250:
VBuffRaw = ser.read(250)
Count = Count + 250
else:
VBuffRaw = ser.read(waiting0)
Count = Count + waiting0
#print("Count = ", Count)
#print("Length AB: Raw: ", len(ABuff), len(VBuffRaw))
index = 0
while index < len(VBuffRaw):
ABuff.append(VBuffRaw[index])
index = index + 1
# Count = Count + waiting0
waiting0 = ser.in_waiting
# print("Serial Length:", waiting0)
# time.sleep(Wait)
if Count >= iterCount: # Sample Buffer now full
# print("Count = ", Count, "iterCount = ", iterCount)
break
#
#EndTime = time.time()
#Elapsed = EndTime - StartTime
#print("Elapsed Time = ", Elapsed)
#print("received Bytes = ", Count)
#print("Length: ", len(ABuff))
#
waiting0 = ser.in_waiting
# print("Serial Length:", waiting0)
# time.sleep(Wait)
if waiting0 > 0:
# print("Serial Length:", waiting0)
dump = ser.read(waiting0)
#Frams = 0
#
# print("received Samples = ", Count)
# print("Length: ", len(ABuff))
# print("Frams = ", Frams)
#
VBuffA=[]
VBuffB=[]
VBuffC=[]
VBuffG=[]
#
index = 0
while index < len(ABuff):
inputHigh = ABuff[index]
index = index + 1
inputLow = ABuff[index]
data = ((inputHigh*256)+inputLow)
VBuff1.append(data)
index = index + 1
inputHigh = ABuff[index]
index = index + 1
inputLow = ABuff[index]
data = ((inputHigh*256)+inputLow)
VBuff2.append(data)
index = index + 1
inputHigh = ABuff[index]
index = index + 1
inputLow = ABuff[index]
data = ((inputHigh*256)+inputLow)
VBuff3.append(data)
index = index + 1
BuffD.append(ABuff[index])
index = index + 1
#
# Interpolate data samples by 4X
#
index = 0
while index < len(VBuff1): # build array
pointer = 0
while pointer < 4:
samp = VBuff1[index]
VBuffA.append(float(samp) * LSBsizeA)
samp = VBuff2[index]
VBuffB.append(float(samp) * LSBsizeB)
samp = VBuff3[index]
VBuffC.append(float(samp) * LSBsizeC)
if SaveDig:
VBuffG.append(BuffD[index])
pointer = pointer + 1
index = index + 1
SHOWsamples = len(VBuffA)
if EnableInterpFilter.get() == 1:
VBuffA = numpy.pad(VBuffA, (4, 0), "edge")
VBuffA = numpy.convolve(VBuffA, Interp4Filter )
VBuffB = numpy.pad(VBuffB, (4, 0), "edge")
VBuffB = numpy.convolve(VBuffB, Interp4Filter )
VBuffC = numpy.pad(VBuffC, (4, 0), "edge")
VBuffC = numpy.convolve(VBuffC, Interp4Filter )
VBuffA = VBuffA[4:SHOWsamples+4]
VBuffB = VBuffB[4:SHOWsamples+4]
VBuffC = VBuffC[4:SHOWsamples+4]
#
VBuffG = numpy.array(VBuffG) * 1
# Extract Digital buffers if needed
if SaveDig:
VBuffG = VBuffG.astype(int)
if D0_is_on:
DBuff0 = VBuffG & 1
if D1_is_on:
DBuff1 = VBuffG & 2
DBuff1 = DBuff1 / 2
if D2_is_on:
DBuff2 = VBuffG & 4
DBuff2 = DBuff2 / 4
if D3_is_on:
DBuff3 = VBuffG & 8
DBuff3 = DBuff3 / 8
if D4_is_on:
DBuff4 = VBuffG & 16
DBuff4 = DBuff4 / 16
if D5_is_on:
DBuff5 = VBuffG & 32
DBuff5 = DBuff5 / 32
if D6_is_on:
DBuff6 = VBuffG & 64
DBuff6 = DBuff6 / 64
if D7_is_on:
DBuff7 = VBuffG & 128
DBuff7 = DBuff7 / 128
#
else:
SaveDig = False
DBuff0 = []
DBuff1 = []
DBuff2 = []
DBuff3 = []
DBuff4 = []
DBuff5 = []
DBuff6 = []
DBuff7 = []
#
def SetBufferLength(NewLength):
global ser, MinSamples, MaxSamples, InterpRate, HardwareBuffer
if NewLength > HardwareBuffer:
NewLength = HardwareBuffer
MinSamples = NewLength
MaxSamples = MinSamples * InterpRate
## send Scope Buffer Length
SendStr = 'b' + str(MinSamples) + '\n'
# print(SendStr)
SendByt = SendStr.encode('utf-8')
ser.write(SendByt)
# ser.write(b'b1024\n')
time.sleep(0.005)
#print("set Scope Samples: ", MinSamples)
#
# Hardware Help
#
## try to connect to Arduino Pi Pico board
#
def ConnectDevice():
global SerComPort, DevID, MaxSamples, SAMPLErate, MinSamples
global MaxAWGSampleRate, AWGSampleRate
global bcon, FWRevOne, HWRevOne, MaxSampleRate, ser, SHOWsamples
global CH1Probe, CH2Probe, CH1VRange, CH2VRange, TimeDiv
global CHAsb, CHBsb, TMsb, LSBsizeA, LSBsizeB, ADC_Cal, LSBsize
global d0btn, d1btn, d2btn, d3btn, d4btn, d5btn, d6btn, d7btn
# print("SerComPort: ", SerComPort)
if DevID == "No Device" or DevID == "Pico PWM 3":
#
if SerComPort == 'Auto':
ports = serial.tools.list_ports.comports()
for port in ports: # ports:
# looking for this ID: USB\VID_2E8A&PID_000A
if "VID:PID=2E8A:000A" in port[2]:
print("Found: ", port[0])
SerComPort = port[0]
# Setup instrument connection
print("Trying to open ", SerComPort)
ser = serial.Serial(SerComPort) # open serial port
if ser is None:
print('Device not found!')
Bcloseexit()
#exit()
#
ser.baudrate = 2000000 # Dummy number USB runs at max supported speed
#
ser.write(b'I\n') # request board ID
time.sleep(0.005)
IDstring = str(ser.readline())
ID = IDstring.replace("b'","")
ID = ID.replace("\\\\","")
ID = ID.replace("r","")
ID = ID.replace("n","")
ID = ID.replace("\\","")
ID = ID.replace("'","")
print("ID string ", ID)
#
ser.write(b'V\n') # Read Bacl VDD (.3.) supply voltage
time.sleep(0.005)
VDDstring = str(ser.readline())
# print("VDD string ", VDDstring)
if "V=" in VDDstring: #
VDD = VDDstring.replace("b'V=","")
VDD = VDD.replace("\\\\","")
VDD = VDD.replace("r","")
VDD = VDD.replace("n","")
VDD = VDD.replace("\\","")
VDD = VDD.replace("'","")
Vsys = (int(VDD) * LSBsize) * 3.0 # 1/3 voltage divider
print("Board Vsys = ", Vsys)
#
ser.write(b't50\n') # send Scope sample time in uSec
time.sleep(0.005)
print("set dt: 50 uSec")
MaxSampleRate = SAMPLErate = 20000*InterpRate
#
ser.write(b'T14\n') # send AWG sample time in uSec
time.sleep(0.005)
print("set at: 14 uSec")
MaxAWGSampleRate = int(1.0/0.000014)
AWGSampleRate = MaxAWGSampleRate
ser.write(b'Gx\n') # default with both AWG off
# ser.write(b'gx\n')
## send Scope Buffer Length
SendStr = 'b' + str(MinSamples) + '\n'
# print(SendStr)
SendByt = SendStr.encode('utf-8')
ser.write(SendByt)
# ser.write(b'b1024\n')
time.sleep(0.005)
print("set Scope Samples: ", MinSamples)
#
ser.write(b'N1024\n') # send AWG A Buffer Length
ser.write(b'M1024\n') # send AWG B Buffer Length
time.sleep(0.005)
print("set AWG Samples: 1024")
#
# ser.write(b'p500000\n')
ser.write(b'Rx\n') # default with AWG reset off
#
ser.write(b'Sx\n') # turn off AWG A by default
# ser.write(b'Sz\n') # turn off AWG B by default
MaxSamples = 4096 # assume 4X interpolation
#
print("Get a sample: ")
Get_Data() # grap a check set of samples