def hvb_assembly_test(multimeter_addr="192.168.1.102",hv_supply_addr="RS232",\
SERIAL_NUMBER="123456",ISEG_VOLTAGE="1000",TIME_PERIOD="0.2",PURPOSE="HVB_RawTest",LOC="/home/pi/daqtest1"):
filename = LOC+SERIAL_NUMBER+"_"+PURPOSE+".csv"
with open(filename,'a') as csvfile:
writer = csv.writer(csvfile)
writer.writerow(['Purpose','DateTime','Serial_Number','BoardName',\
'Channel','ISEG_V','LoadRelay1','LoadRelay2','K','MCPAT','MCPAB',\
'MCPBT','MCPBB','Result_V'])
'''
# Make iseg object
iseg = Iseg_SHQ226L["RS232")
iseg.reset()
# Initialize parameters
iseg.channel=1
channel=iseg.channel
print "ISEG Channel is: "+channel
iseg.set_voltage = ISEG_VOLTAGE
#time.sleep(0.5)
set2_voltage = iseg.set_voltage
print "Set voltage is: %r" %set2_voltage
'''
# Make keithley object
keith=Keithley_2010("192.168.1.102",1234)
# Initialize parameters
id=keith.identification()
print id
keith.reset()
keith.configure = "VOLTAGE"
keith.configure_voltage = "DC"
func,acdc = keith.configure_voltage
unit = keith.unit_voltage
print "Keithley2010 Multimeter configured to: "+acdc+" "+func+"\n"
load_state=[(0,0),(0,1),(1,0),(1,1)]
mux_state=[(0,0,0,0,1),(0,0,0,1,0),(0,0,1,0,0),(0,1,0,0,0),(1,0,0,0,0)]
channel_addr={1:(0,0,0),2:(0,0,1),3:(0,1,0),4:(0,1,1),5:(1,0,0),6:(1,0,1),7:(1,1,0),8:(1,1,1)}
count = 0
for channel in range(1,9):
for j in range(0,4):
for k in range (0,5):
row = list()
# print "channel address is: ",channel_addr[channel]
a = channel_addr[channel]
b = load_state[j]
c = mux_state[k]
hvb_gpio.change_states(a,b,c)
time.sleep(float(TIME_PERIOD)/2)
result = keith.read_voltage
row.append('HVB_RawTest')
ts=time.time()
DateTime=datetime.datetime.fromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S')
row.append(DateTime)
row.append(SERIAL_NUMBER)
row.append('HVB_Board_Assembly')
row.append(channel)
row.append(ISEG_VOLTAGE)
row.append(load_state[j][0])
row.append(load_state[j][1])
row.append(mux_state[k][0])
row.append(mux_state[k][1])
row.append(mux_state[k][2])
row.append(mux_state[k][3])
row.append(mux_state[k][4])
row.append(float(result))
count+=1
print "Measurement #"+str(count)+"= "+result+" "+unit
with open(filename,'a') as csvfile:
writer = csv.writer(csvfile)
writer.writerow(row)
time.sleep(float(TIME_PERIOD)/2)
# Reset parameters
# iseg.set_voltage = 0
# Reset all GPIO pins of RPi to LOW (0)
hvb_gpio.reset_all_gpio()
def hvb_assembly_test(multimeter_addr="192.168.1.102",hv_supply_addr="RS232",SERIAL_NUMBER="123456",ISEG_VOLTAGE="1000",ISEG_RAMP_SPEED="10",TIME_PERIOD="0.2",PURPOSE="HVB_RawTest",CodeVersion='1',LOC="/home/pi/daqtest1/"):
if (float(ISEG_VOLTAGE) < 0) or (float(ISEG_VOLTAGE) > float(ISEG_VOLTAGE_LIMIT)):
print bcolors.FAIL+"Error!!! ISEG Voltage must be between 0 and "+str(ISEG_VOLTAGE_LIMIT)+\
"for test"+bcolors.ENDC
logging.error('Error!!! ISEG Voltage must be between 0 and '+\
str(ISEG_VOLTAGE_LIMIT)+'for test!')
# Reset parameters
iseg.channel = 1 # Ch 1
iseg.set_voltage = 0
status1 = iseg.start_voltage_change # This triggers it to change voltage
iseg.channel = 2 # Ch 2
iseg.set_voltage = 0
status2 = iseg.start_voltage_change # This triggers it to change voltage
# Force software to exit
sys.exit()
# Set name of csv file for results
#filename = LOC+SERIAL_NUMBER+"_"+PURPOSE+".csv"
filename = LOC+PURPOSE+".csv"
# Attach BoardName+CodeVersion
# Ex. HVB_Board_Assembly1 where 1 is CodeVersion number
BoardName = 'HVB_Board_Assembly'+str(CodeVersion)
# If file does not exist, set name of headers for results in csv file
# If file exists, it is not necessary to set name of headers because
# it should already have headers for the file
if os.path.exists(filename):
passed = False # Initialize variable to check if header exist
fIn = open(filename)
for line in fIn:
line=line.replace(',',' ') # Replace each blank space
value = line.split()
# check to see if file has same header
try:
if value[0].lower()=='serial' and (value[1].lower()=='datetime') and \
(value[2].lower()=='boardname') and (value[3].lower()=='loadcondition') \
and (value[4].lower()=='psvoltageset') and \
(value[5].lower()=='psvoltage1') and (value[6].lower()=='pscurrent1_ua') \
and (value[7].lower()=='psvoltage2') and (value[8].lower()=='pscurrent2_ua') \
and (value[9].lower()=='v0') and (value[10].lower()=='v1') and \
(value[11].lower()=='v2') and (value[12].lower()=='v3') and \
(value[13].lower()=='v4') and (value[14].lower()=='v5') and \
(value[15].lower()=='v6') and (value[16].lower()=='v7') and \
(value[17].lower()=='v8') and (value[18].lower()=='v9') and \
(value[19].lower()=='v10') and (value[20].lower()=='v11') and \
(value[21].lower()=='v12') and (value[22].lower()=='v13') and \
(value[23].lower()=='v14') and (value[24].lower()=='v15') and \
(value[25].lower()=='v16') and (value[26].lower()=='v17') and \
(value[27].lower()=='v18') and (value[28].lower()=='v19') and \
(value[29].lower()=='v20') and (value[30].lower()=='v21') and \
(value[31].lower()=='v22') and (value[32].lower()=='v23') and \
(value[33].lower()=='v24') and (value[34].lower()=='v25') and \
(value[35].lower()=='v26') and (value[36].lower()=='v27') and \
(value[37].lower()=='v28') and (value[38].lower()=='v29') and \
(value[39].lower()=='v30') and (value[40].lower()=='v31') and \
(value[41].lower()=='v32') and (value[42].lower()=='v33') and \
(value[43].lower()=='v34') and (value[44].lower()=='v35') and \
(value[45].lower()=='v36') and (value[46].lower()=='v37') and \
(value[47].lower()=='v38') and (value[48].lower()=='v39'):
passed = True
break
except IndexError:
pass
#print "Checking file to see if it has right header..."
if not passed:
print bcolors.FAIL+"Error!!! File exists already and it is not related to our test!"+bcolors.ENDC
logging.error('Error!!! File exists and not related to our test!')
# Reset parameters
iseg.channel = 1 # Ch 1
iseg.set_voltage = 0
status1 = iseg.start_voltage_change # This triggers it to change voltage
iseg.channel = 2 # Ch 2
iseg.set_voltage = 0
status2 = iseg.start_voltage_change # This triggers it to change voltage
# Force software to exit
sys.exit()
else:
with open(filename,'a') as csvfile:
writer = csv.writer(csvfile)
writer.writerow(['Purpose', PURPOSE])
writer.writerow(['CodeVersion', CodeVersion])
writer.writerow('')
writer.writerow(['Serial','DateTime','BoardName','LoadCondition',\
'PSvoltageSet','PSvoltage1','PScurrent1_uA','PSvoltage2',
'PScurrent2_uA','V0','V1','V2','V3','V4','V5','V6','V7','V8','V9',\
'V10','V11','V12','V13','V14','V15','V16','V17','V18','V19',\
'V20','V21','V22','V23','V24','V25','V26','V27','V28','V29',\
'V30','V31','V32','V33','V34','V35','V36','V37','V38','V39'])
# Make iseg object
iseg = Iseg_SHQ226L("RS232")
print "Initializing parameters for ISEG SHQ226L Supply..."
# Initialize parameters for ISEG Channel #1
iseg.channel=1 # NOTE: Remember to always set channel
# of ISEG before sending commands!!!
iseg.ramp_speed = ISEG_RAMP_SPEED
iseg.set_voltage = ISEG_VOLTAGE
#status1 = iseg.start_voltage_change # This triggers it to change voltage
# Initialize parameters for ISEG Channel #2
iseg.channel=2 # NOTE: Remember to always set channel
# of ISEG before sending commands!!!
iseg.ramp_speed = ISEG_RAMP_SPEED
iseg.set_voltage = ISEG_VOLTAGE
#status2 = iseg.start_voltage_change # This triggers it to change voltage
# Grab values for ISEG Channel #1
iseg.channel=1 # NOTE: Remember to always set channel
# of ISEG before sending commands!!!
channel1 = iseg.channel
#set_voltage1 = iseg.set_voltage
time.sleep(CMD_DELAY)
actual_voltage1 = -1*float(iseg.actual_voltage) # flipping voltage
time.sleep(CMD_DELAY)
actual_current1 = float(iseg.actual_current)*10**6
time.sleep(CMD_DELAY)
ramp_speed1 = iseg.ramp_speed
# Grab values for ISEG Channel #2
iseg.channel=2 # NOTE: Remember to always set channel
# of ISEG before sending commands!!!
channel2 = iseg.channel
#set_voltage2 = iseg.set_voltage
time.sleep(CMD_DELAY)
actual_voltage2 = -1*float(iseg.actual_voltage) # flipping voltage
time.sleep(CMD_DELAY)
actual_current2 = float(iseg.actual_current)*10**6
time.sleep(CMD_DELAY)
ramp_speed2 = float(iseg.ramp_speed)
# Calculate how long it will take voltage to ramp up to desired voltage
voltage_delay1 = (float(ISEG_VOLTAGE)/float(ramp_speed1))*VOLTAGE_DELAY_ERROR
voltage_delay2 = (float(ISEG_VOLTAGE)/float(ramp_speed2))*VOLTAGE_DELAY_ERROR
voltage_delay = voltage_delay1 + voltage_delay2
# Update how long it will take for voltage to reach set Voltage
print "\tISEG Set voltage is: "+bcolors.OKGREEN+"%s V"%ISEG_VOLTAGE+bcolors.ENDC
print "\tISEG Ramp Speed is: "+str(ISEG_RAMP_SPEED)+" V/s"
print "\tTherefore, it will take %f sec(s) "%voltage_delay+\
"for actual voltage to reach the set voltage...\n"
# Print current status
print "Current status is..."
print "\tISEG HV Supply Channel #"+channel1+":"
actual_voltage1_error = abs(actual_voltage1-float(ISEG_VOLTAGE))
if (actual_voltage1_error >= 10): # Error
print "\t>> actual voltage = "+bcolors.FAIL+bcolors.BOLD+"%0.2f V"%actual_voltage1+bcolors.ENDC
elif (actual_voltage1_error >= 0.5) and (actual_voltage1_error < 10): # Warning
print "\t>> actual voltage = "+bcolors.CYAN+bcolors.BOLD+"%0.2f V"%actual_voltage1+bcolors.ENDC
else: # OKAY
print "\t>> actual voltage = "+bcolors.OKGREEN+bcolors.BOLD+"%0.2f V"%actual_voltage1+bcolors.ENDC
print "\t>> actual current = %0.2f uA"%actual_current1
print "\tISEG HV Supply Channel #"+channel2+":"
actual_voltage2_error = abs(actual_voltage2-float(ISEG_VOLTAGE))
if (actual_voltage2_error >= 10): # Error
print "\t>> actual voltage = "+bcolors.FAIL+bcolors.BOLD+"%0.2f V"%actual_voltage2+bcolors.ENDC
elif (actual_voltage2_error >= 0.5) and (actual_voltage2_error < 10): # Warning
print "\t>> actual voltage = "+bcolors.CYAN+bcolors.BOLD+"%0.2f V"%actual_voltage2+bcolors.ENDC
else: # OKAY
print "\t>> actual voltage = "+bcolors.OKGREEN+bcolors.BOLD+"%0.2f V"%actual_voltage2+bcolors.ENDC
print "\t>> actual voltage = %0.2f V"%actual_voltage2
print "\t>> actual current = %0.2f uA"%actual_current2
# Print Wait update
print "\nWaiting "+str(voltage_delay)+" sec(s)...\n"
# Trigger ISEG Voltage
iseg.channel = 1
status1 = iseg.start_voltage_change # This triggers it to change voltage
time.sleep(voltage_delay1) # Waiting for actual voltage of iseg
# to reach set voltage
iseg.channel = 2
status2 = iseg.start_voltage_change # This triggers it to change voltage
time.sleep(voltage_delay2) # Waiting for actual voltage of iseg
# to reach set voltage
print "About to start HVB Automated Test for HVB Assembly with"+\
" Serial #"+SERIAL_NUMBER+" Now."+"\nResults may be found"+\
" in "+"directory at: "+LOC
# This while() loop is responsible for the interactive
# prompt to see if you are satisfied with the actal voltage.
# It will wait until you want to proceed.
while(1):
# Grab values for ISEG Channel #1
iseg.channel=1 # NOTE: Remember to always set channel
# of ISEG before sending commands!!!
channel1 = iseg.channel
#set_voltage1 = iseg.set_voltage
time.sleep(CMD_DELAY)
actual_voltage1 = -1*float(iseg.actual_voltage) # flipping voltage
time.sleep(CMD_DELAY)
actual_current1 = float(iseg.actual_current)*10**6
#time.sleep(CMD_DELAY)
#ramp_speed1 = iseg.ramp_speed
voltage_delay1 = (float(ISEG_VOLTAGE)/float(ISEG_RAMP_SPEED))*VOLTAGE_DELAY_ERROR
# Grab values for ISEG Channel #2
iseg.channel=2 # NOTE: Remember to always set channel
# of ISEG before sending commands!!!
channel2 = iseg.channel
#set_voltage2 = iseg.set_voltage
time.sleep(CMD_DELAY)
actual_voltage2 = -1*float(iseg.actual_voltage) # flipping voltage
time.sleep(CMD_DELAY)
actual_current2 = float(iseg.actual_current)*10**6
#time.sleep(CMD_DELAY)
#ramp_speed2 = iseg.ramp_speed
voltage_delay2 = float(ISEG_VOLTAGE)/float(ISEG_RAMP_SPEED)
print "\nStatus of ISEG HV Supply with PSvoltageSet="+bcolors.OKGREEN+bcolors.BOLD+ISEG_VOLTAGE+\
"V"+bcolors.ENDC+" is: "
print "\tISEG HV Supply Channel #"+channel1+":"
actual_voltage1_error = abs(actual_voltage1-float(ISEG_VOLTAGE))
if (actual_voltage1_error >= 10): # Error
print "\t>> actual voltage = "+bcolors.FAIL+bcolors.BOLD+"%0.2f V"%actual_voltage1+bcolors.ENDC
elif (actual_voltage1_error >= 0.5) and (actual_voltage1_error < 10): # Warning
print "\t>> actual voltage = "+bcolors.CYAN+bcolors.BOLD+"%0.2f V"%actual_voltage1+bcolors.ENDC
else: # OKAY
print "\t>> actual voltage = "+bcolors.OKGREEN+bcolors.BOLD+"%0.2f V"%actual_voltage1+bcolors.ENDC
print "\t>> actual current = %0.2f uA"%actual_current1
print "\tISEG HV Supply Channel #"+channel2+":"
actual_voltage2_error = abs(actual_voltage2-float(ISEG_VOLTAGE))
if (actual_voltage2_error >= 10): # Error
print "\t>> actual voltage = "+bcolors.FAIL+bcolors.BOLD+"%0.2f V"%actual_voltage2+bcolors.ENDC
elif (actual_voltage2_error >= 0.5) and (actual_voltage2_error < 10): # Warning
print "\t>> actual voltage = "+bcolors.CYAN+bcolors.BOLD+"%0.2f V"%actual_voltage2+bcolors.ENDC
else: # OKAY
print "\t>> actual voltage = "+bcolors.OKGREEN+bcolors.BOLD+"%0.2f V"%actual_voltage2+bcolors.ENDC
print "\t>> actual current = %0.2f uA"%actual_current2
RESPONSE = raw_input("\tPlease enter (c)ontinue, (e)xit, "+\
"(u)pdate, or (s)et_voltage: ")
try:
if (RESPONSE.lower() == "exit" or RESPONSE.lower() == "e"):
print "\nExiting and resetting parameters..."
# Reset parameters
iseg.channel = 1 # Ch 1
iseg.set_voltage = 0
status1 = iseg.start_voltage_change # This triggers it to change voltage
iseg.channel = 2 # Ch 2
iseg.set_voltage = 0
status2 = iseg.start_voltage_change # This triggers it to change voltage
# Force software to exit
sys.exit()
elif (RESPONSE.lower() == "continue" or RESPONSE.lower() == "c"):
break
elif (RESPONSE.lower() == "update" or RESPONSE.lower() == "u"):
pass
elif (RESPONSE.lower() == "set_voltage" or RESPONSE.lower() == "s"):
while(1):
ISEG_VOLTAGE = raw_input('\tPlease enter new set voltage'+\
' (V): ')
try:
if (ISEG_VOLTAGE.lower() == "exit" or ISEG_VOLTAGE.lower() == "e"):
print "\nExiting and resetting parameters..."
# Reset parameters
iseg.channel = 1 # Ch 1
iseg.set_voltage = 0
status1 = iseg.start_voltage_change # This triggers it to change voltage
iseg.channel = 2 # Ch 2
iseg.set_voltage = 0
status2 = iseg.start_voltage_change # This triggers it to change voltage
# Force software to exit
sys.exit()
elif (int(ISEG_VOLTAGE) < 0) or (int(ISEG_VOLTAGE) > float(ISEG_VOLTAGE_LIMIT)):
print bcolors.FAIL+"\t>> Error!!! ISEG_VOLTAGE must be between 0 and %0.2f!"%ISEG_VOLTAGE_LIMIT+bcolors.ENDC
else: # Setting new ISEG_VOLTAGE
# Initialize parameters for ISEG Channel #1
iseg.channel=1 # NOTE: Remember to always set channel
# of ISEG before sending commands!!!
iseg.set_voltage = ISEG_VOLTAGE
# Initialize parameters for ISEG Channel #2
iseg.channel=2 # NOTE: Remember to always set channel
# of ISEG before sending commands!!!
iseg.set_voltage = ISEG_VOLTAGE
# Calculate Waiting time
voltage_delay = (abs((float(ISEG_VOLTAGE)-float(actual_voltage1))/\
float(ISEG_RAMP_SPEED)) + abs((float(ISEG_VOLTAGE) - \
float(actual_voltage2))/float(ISEG_RAMP_SPEED)))*VOLTAGE_DELAY_ERROR
# Print Wait update
print "\nWaiting "+str(voltage_delay)+" sec(s)...\n"
# Trigger ISEG Voltage
iseg.channel = 1
status1 = iseg.start_voltage_change # This triggers it to change voltage
iseg.channel = 2
status2 = iseg.start_voltage_change # This triggers it to change voltage
time.sleep(voltage_delay) # Waiting for actual voltage of iseg
# to reach set voltage
break
except ValueError:
print bcolors.FAIL+"\t>> Error!!! ISEG_VOLTAGE must be between 0 and %0.2f!"%ISEG_VOLTAGE_LIMIT+bcolors.ENDC
else:
print bcolors.FAIL+'\t>> Error!!! Must enter "(c)ontinue", "(e)xit", '+\
'"(u)pdate", or "(s)et_voltage"!'+bcolors.ENDC
except ValueError:
print bcolors.FAIL+'\t>> Error!!! Must enter "(c)ontinue", "(e)xit", '+\
'"(u)pdate", or "(s)et_voltage"!'+bcolors.ENDC
print "\n"
logging.info("Status of ISEG HV Supply with PSvoltageSet="+\
ISEG_VOLTAGE+"V is: ")
logging.info("\tISEG HV Supply Channel #"+channel1+":")
logging.info("\t>> actual voltage = %0.2f V"%actual_voltage1)
logging.info("\t>> actual current = %0.2f uA"%actual_current1)
logging.info("\tISEG HV Supply Channel #"+channel2+":")
logging.info("\t>> actual voltage = %0.2f V"%actual_voltage2)
logging.info("\t>> actual current = %0.2f uA"%actual_current2)
# Make keithley object
keith=Keithley_2010("192.168.1.102",1234)
# Initialize parameters
id=keith.identification() # Get identification of instrument
print id
keith.reset() # reset configurations
keith.configure = "VOLTAGE" # configure function to voltage
keith.configure_voltage = "DC" # configure voltage to DC
func,acdc = keith.configure_voltage # Get configuration settings
# to see if it is configured to
# voltage and dc
keith.unit_voltage = 'VPP' # Set units of voltage
unit = keith.unit_voltage # Get units of voltage
print "Keithley2010 Multimeter configured to: "+acdc+" "+func+" "+unit+"\n"
# Necessary states to control
load_state=[(0,0),(0,1),(1,0),(1,1)]
mux_state=[(0,0,0,0,1),(0,0,0,1,0),(0,0,1,0,0),(0,1,0,0,0),(1,0,0,0,0)]
channel_addr={0:(0,0,0),1:(0,0,1),2:(0,1,0),3:(0,1,1),4:(1,0,0),5:(1,0,1),6:(1,1,0),7:(1,1,1)}
ts = time.time()
DateTime=datetime.datetime.fromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S')
row = list()
count = 0
# Reset all GPIO pins of RPi to LOW (0)
hvb_gpio.reset_all_gpio() # Safety practice ensuring GPIO pins are low
for LoadCondition in range(0,4): # changing load relays
print "\nUnder LoadCondition = "+str(LoadCondition)
# Update row to be written on csv
row.append(SERIAL_NUMBER)
row.append(DateTime)
row.append(BoardName)
row.append(LoadCondition) # LoadCondition: 0 = off off
# 1 = off on
# 2 = on off
# 3 = on on
row.append(ISEG_VOLTAGE)
iseg.channel=1 # NOTE: Remember to always set channel
# of ISEG before sending commands!!!
time.sleep(CMD_DELAY)
PSvoltage1 = -1*float(iseg.actual_voltage) # Actual voltage from ISEG Ch1
# flipping voltage
time.sleep(CMD_DELAY)
PScurrent1 = float(iseg.actual_current) # Actual currrent from ISEG Ch1
iseg.channel=2 # NOTE: Remember to always set channel
# of ISEG before sending commands!!!
time.sleep(CMD_DELAY)
PSvoltage2 = -1*float(iseg.actual_voltage) # Actual voltage from ISEG Ch2
# flipping voltage
time.sleep(CMD_DELAY)
PScurrent2 = float(iseg.actual_current) # Actual current from ISEG Ch2
# Update row to be written on csv
row.append(format(PSvoltage1,'.2f'))
row.append(format(PScurrent1*10**6,'.2f'))
row.append(format(PSvoltage2,'.2f'))
row.append(format(PScurrent2*10**6,'.2f'))
for channel in range(0,8): # choosing channel
for k in range (0,5): # Choosing different parameters in mux_state
# print "channel address is: ",channel_addr[channel]
a = channel_addr[channel] # channel is associated with test board # on stack
b = load_state[int(LoadCondition)]
c = mux_state[k]
hvb_gpio.change_states(a,b,c)
time.sleep(float(TIME_PERIOD)/2)
vdmm = keith.read_voltage # actual reading from keithley2010 mult.
vdmm = -1*float(vdmm)
# Formula to convert Keithley DMM measures into real voltage on
# HVB output terminals/test board input terminals, that this
# corresponds to. It is actual voltage we want to store in test
# test database. (NOTE: If it were remeasured at some later date with
# a replacement test system, the intermediate voltage of the DMM
# might differ, it's the actual voltage which is really the
# universal thing of interest)
b = 502.522692 # b constant for eqn
c = 1.04007e-3 # c constant for eqn
d = 1.96453e-5 # d constant for eqn
# result is associated with V0, V1, V2, V3, .... V39
result = format(b*vdmm*(1-c*vdmm-d*(vdmm**2)),'.2f')
row.append(result)
print "\tV"+str(count)+" = "+str(result)+" "+"V"
count+=1
time.sleep(float(TIME_PERIOD)/2)
count = 0
with open(filename,'a') as csvfile:
writer = csv.writer(csvfile)
writer.writerow(row)
row = []
# Reset parameters
iseg.channel = 1
iseg.set_voltage = 0
iseg.channel = 2
iseg.set_voltage = 0
# Reset all GPIO pins of RPi to LOW (0)
hvb_gpio.reset_all_gpio()
def hvb_assembly_test(multimeter_addr="192.168.1.102",hv_supply_addr="RS232",SERIAL_NUMBER="123456",ISEG_VOLTAGE="1000",ISEG_RAMP_SPEED="10",TIME_PERIOD="0.2",PURPOSE="HVB_RawTest",LOC="/home/pi/daqtest1/"):
# Set name of csv file for results
filename = LOC+SERIAL_NUMBER+"_"+PURPOSE+".csv"
# Set name of headers for results in csv file
with open(filename,'a') as csvfile:
writer = csv.writer(csvfile)
writer.writerow(['Purpose','DateTime','Serial_Number','BoardName',\
'Channel','ISEG_V','LoadRelay1','LoadRelay2','K','MCPAT','MCPAB',\
'MCPBT','MCPBB','Result_V'])
# Make iseg object
iseg = Iseg_SHQ226L("RS232")
# Initialize parameters
print "Initializing parameters for ISEG SHQ226L Supply..."
iseg.channel=1
iseg.ramp_speed = ISEG_RAMP_SPEED
iseg.set_voltage = ISEG_VOLTAGE
# Grab values
status = iseg.start_voltage_change # This triggers it to change voltage
channel = iseg.channel
set_voltage = iseg.set_voltage
actual_voltage = iseg.actual_voltage
ramp_speed = iseg.ramp_speed
voltage_delay = float(ISEG_VOLTAGE)/float(ISEG_RAMP_SPEED)
# Print status
print "\tISEG Channel is: "+channel
print "\tStatus is: %r" %status
print "\tSet voltage is: %r V" %set_voltage
print "\t>> But, currently, actual voltage is: %r V" %actual_voltage
print "\tVoltage Ramp Speed is: %r" %ramp_speed
print "\t>> Therefore, it will take "+str(voltage_delay)+" sec(s) to"+\
" reach set voltage="+str(set_voltage)+"V"
time.sleep(voltage_delay) # Waiting for actual voltage of iseg
# to reach set voltage
# Print update status to see if actual_voltage=set_voltage now
actual_voltage = iseg.actual_voltage
print "\tActual voltage on ISEG Channel "+channel+" is now: "+actual_voltage+" V"
# Make keithley object
keith=Keithley_2010("192.168.1.102",1234)
# Initialize parameters
id=keith.identification() # Get identification of instrument
print id
keith.reset() # reset configurations
keith.configure = "VOLTAGE" # configure function to voltage
keith.configure_voltage = "DC" # configure voltage to DC
func,acdc = keith.configure_voltage # Get configuration settings
# to see if it is configured to
# voltage and dc
keith.unit_voltage = 'VPP' # Set units of voltage
unit = keith.unit_voltage # Get units of voltage
print "Keithley2010 Multimeter configured to: "+acdc+" "+func+" "+unit+"\n"
# Necessary states to control
load_state=[(0,0),(0,1),(1,0),(1,1)]
mux_state=[(0,0,0,0,1),(0,0,0,1,0),(0,0,1,0,0),(0,1,0,0,0),(1,0,0,0,0)]
channel_addr={1:(0,0,0),2:(0,0,1),3:(0,1,0),4:(0,1,1),5:(1,0,0),6:(1,0,1),7:(1,1,0),8:(1,1,1)}
count = 0
for j in range(0,4): # changing load relays
for channel in range(1,9): # choosing channel
for k in range (0,5): # Choosing different parameters in mux_state
row = list()
# print "channel address is: ",channel_addr[channel]
a = channel_addr[channel]
b = load_state[j]
c = mux_state[k]
hvb_gpio.change_states(a,b,c)
time.sleep(float(TIME_PERIOD)/2)
result = keith.read_voltage
row.append('HVB_RawTest')
ts=time.time()
DateTime=datetime.datetime.fromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S')
row.append(DateTime)
row.append(SERIAL_NUMBER)
row.append('HVB_Board_Assembly')
row.append(channel)
row.append(ISEG_VOLTAGE)
row.append(load_state[j][0])
row.append(load_state[j][1])
row.append(mux_state[k][0])
row.append(mux_state[k][1])
row.append(mux_state[k][2])
row.append(mux_state[k][3])
row.append(mux_state[k][4])
row.append(float(result))
count+=1
print "Measurement #"+str(count)+"= "+result+" "+unit
with open(filename,'a') as csvfile:
writer = csv.writer(csvfile)
writer.writerow(row)
time.sleep(float(TIME_PERIOD)/2)
# Reset parameters
iseg.set_voltage = 0
# Reset all GPIO pins of RPi to LOW (0)
hvb_gpio.reset_all_gpio()