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bglusman/lbjk.py

Created March 10, 2011 03:15
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labjack project
Raw
lbjk.py
#simple loop to toggle LED on and off forever
import time
import math
import ConfigParser
import logging
LEVELS = {'debug' : logging.DEBUG,
'info' : logging.INFO,
'warning' : logging.WARNING,
'error' : logging.ERROR,
'critical': logging.CRITICAL}
MajorPeriod = 1
MinorPeriod = .5
LED = 6004
Log_Filename = "incline.log"
Log_Level = "info"
#Initilize Labjack
import u3
Device = u3.U3(autoOpen = False)
# LED state: null = false = led off
State = ()
#set an initial Target time for first iteration and round up to a whole second
Target = math.ceil(time.time())
while 1 != 0:
Start = time.time()
#
#read config file and set default values. default values don't work as intended.
#
config = ConfigParser.RawConfigParser()
config.read('config.file')
#read config file into temporary variables
New_LED = config.getint('section 1', 'LED address')
New_MajorPeriod = config.getfloat('section 1', 'MajorPeriod')
New_MinorPeriod = config.getfloat('section 1', 'MinorPeriod')
New_level_name = config.get('section 1', 'LogLevel')
New_Log_Filename = config.get('section 1', 'LogFile')
#test for change in log name and level. has to be done here to get looging going.
old_log_name = ()
if Log_Filename != New_Log_Filename:
old_log_name = 1
Log_Filename = New_Log_Filename
#this doesn't work correctly because the names are mapped to numeric values.
# old_log_level = ()
if New_level_name != Log_Level:
# old_log_level = 1
Log_Level = New_level_name
#configure logging
Log_Level = LEVELS.get(Log_Level, logging.NOTSET)
logging.basicConfig(filename=Log_Filename,level=Log_Level)
#log any changes to log name and level
if old_log_name:
logging.info('Logfile set to:')
# if old_log_level:
# logging.info('Log level set to:')
#test if other parameters have changed vs new values from file. if yes then log and update dictionary.
if New_LED != LED:
logging.info('LED address set to:')
LED = New_LED
if New_MajorPeriod != MajorPeriod:
logging.info('Major Period set to:')
MajorPeriod = New_MajorPeriod
if New_MinorPeriod != MinorPeriod:
logging.info('Minor Period set to:')
MinorPeriod = New_MinorPeriod
#calculate time to sleep
NapTime = MajorPeriod/MinorPeriod
# round Target up to nearest even time
Overplus = Target % MajorPeriod
if Overplus != 0:
Target = Target + ( MajorPeriod - Overplus )
if Start >= Target:
logging.debug('This message should go to the log file')
Target = Target + MajorPeriod
#initialize labjack on each loop
Device.open()
#flip current state
State = not State
print "LED is %s" % State
#toggle the LED
Device.writeRegister(LED, State)
#close the labjack on eachloop
Device.close()
else:
Remainder = Target - Start
if Remainder < NapTime:
time.sleep(Remainder)
else:
#Minor Period
#preforms actions?
time.sleep(NapTime)
Raw
u3.py
"""
Name: u3.py
Desc: Defines the U3 class, which makes working with a U3 much easier. All of
the low-level functions for the U3 are implemented as functions of the U3
class. There are also a handful additional functions which improve upon
the interface provided by the low-level functions.
To learn about the low-level functions, please see Section 5.2 of the U3 User's Guide:
http://labjack.com/support/u3/users-guide/5.2
Section Number Mapping:
1 = Object Functions
2 = User's Guide Functions
3 = Convenience Functions
4 = Private Helper Functions
"""
from LabJackPython import *
import struct, ConfigParser
FIO0, FIO1, FIO2, FIO3, FIO4, FIO5, FIO6, FIO7, \
EIO0, EIO1, EIO2, EIO3, EIO4, EIO5, EIO6, EIO7, \
CIO0, CIO1, CIO2, CIO3 = range(20)
def openAllU3():
"""
A helpful function which will open all the connected U3s. Returns a
dictionary where the keys are the serialNumber, and the value is the device
object.
"""
returnDict = dict()
for i in range(deviceCount(3)):
d = U3(firstFound = False, devNumber = i+1)
returnDict[str(d.serialNumber)] = d
return returnDict
class U3(Device):
"""
U3 Class for all U3 specific low-level commands.
Example:
>>> import u3
>>> d = u3.U3()
>>> print d.configU3()
{'SerialNumber': 320032102, ... , 'FirmwareVersion': '1.26'}
"""
def __init__(self, debug = False, autoOpen = True, **kargs):
"""
Name: U3.__init__(debug = False, autoOpen = True, **openArgs)
Args: debug, enables debug output
autoOpen, if true, the class will try to open a U3 using openArgs
**openArgs, the arguments to pass to the open call. See U3.open()
Desc: Instantiates a new U3 object. If autoOpen == True, then it will
also open a U3.
Examples:
Simplest:
>>> import u3
>>> d = u3.U3()
For debug output:
>>> import u3
>>> d = u3.U3(debug = True)
To open a U3 with Local ID = 2:
>>> import u3
>>> d = u3.U3(localId = 2)
"""
Device.__init__(self, None, devType = 3)
self.debug = debug
self.calData = None
self.ledState = True
if autoOpen:
self.open(**kargs)
__init__.section = 1
def open(self, firstFound = True, serial = None, localId = None, devNumber = None, handleOnly = False, LJSocket = None):
"""
Name: U3.open(firstFound = True, localId = None, devNumber = None,
handleOnly = False, LJSocket = None)
Args: firstFound, If True, use the first found U3
serial, open a U3 with the given serial number
localId, open a U3 with the given local id.
devNumber, open a U3 with the given devNumber
handleOnly, if True, LabJackPython will only open a handle
LJSocket, set to "<ip>:<port>" to connect to LJSocket
Desc: Use to open a U3. If handleOnly is false, it will call configU3
and save the resulting information to the object. This allows the
use of d.serialNumber, d.firmwareVersion, etc.
Examples:
Simplest:
>>> import u3
>>> d = u3.U3(autoOpen = False)
>>> d.open()
Handle-only, with a serial number = 320095789:
>>> import u3
>>> d = u3.U3(autoOpen = False)
>>> d.open(handleOnly = True, serial = 320095789)
Using LJSocket:
>>> import u3
>>> d = u3.U3(autoOpen = False)
>>> d.open(LJSocket = "localhost:6000")
"""
Device.open(self, 3, firstFound = firstFound, serial = serial, localId = localId, devNumber = devNumber, handleOnly = handleOnly, LJSocket = LJSocket )
open.section = 1
def configU3(self, LocalID = None, TimerCounterConfig = None, FIOAnalog = None, FIODirection = None, FIOState = None, EIOAnalog = None, EIODirection = None, EIOState = None, CIODirection = None, CIOState = None, DAC1Enable = None, DAC0 = None, DAC1 = None, TimerClockConfig = None, TimerClockDivisor = None, CompatibilityOptions = None ):
"""
Name: U3.configU3(LocalID = None, TimerCounterConfig = None, FIOAnalog = None, FIODirection = None, FIOState = None, EIOAnalog = None, EIODirection = None, EIOState = None, CIODirection = None, CIOState = None, DAC1Enable = None, DAC0 = None, DAC1 = None, TimerClockConfig = None, TimerClockDivisor = None, CompatibilityOptions = None)
Args: See section 5.2.2 of the users guide.
Desc: Sends the low-level configU3 command. Also saves relevant
information to the U3 object for later use.
Example:
Simplest:
>>> import u3
>>> d = u3.U3()
>>> print d.configU3()
{
'LocalID': 1,
'SerialNumber': 320035782,
'DeviceName': 'U3-LV',
'FIODirection': 0,
'FirmwareVersion': '1.24',
... ,
'ProductID': 3
}
Configure all FIOs and EI0s to analog on boot:
>>> import u3
>>> d = u3.U3()
>>> print d.configU3( FIOAnalog = 255, EIOAnalog = 255)
{
'FIOAnalog': 255,
'EIOAnalog': 255,
... ,
'ProductID': 3
}
"""
writeMask = 0
if FIOAnalog is not None or FIODirection is not None or FIOState is not None or EIOAnalog is not None or EIODirection is not None or EIOState is not None or CIODirection is not None or CIOState is not None:
writeMask |= 2
if DAC1Enable is not None or DAC0 is not None or DAC1 is not None:
writeMask |= 4
if LocalID is not None:
writeMask |= 8
command = [ 0 ] * 26
#command[0] = Checksum8
command[1] = 0xF8
command[2] = 0x0A
command[3] = 0x08
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
command[6] = writeMask
#command[7] = WriteMask1
if LocalID is not None:
command[8] = LocalID
if TimerCounterConfig is not None:
command[9] = TimerCounterConfig
if FIOAnalog is not None:
command[10] = FIOAnalog
if FIODirection is not None:
command[11] = FIODirection
if FIOState is not None:
command[12] = FIOState
if EIOAnalog is not None:
command[13] = EIOAnalog
if EIODirection is not None:
command[14] = EIODirection
if EIOState is not None:
command[15] = EIOState
if CIODirection is not None:
command[16] = CIODirection
if CIOState is not None:
command[17] = CIOState
if DAC1Enable is not None:
command[18] = DAC1Enable
if DAC0 is not None:
command[19] = DAC0
if DAC1 is not None:
command[20] = DAC1
if TimerClockConfig is not None:
command[21] = TimerClockConfig
if TimerClockDivisor is not None:
command[22] = TimerClockDivisor
if CompatibilityOptions is not None:
command[23] = CompatibilityOptions
result = self._writeRead(command, 38, [0xF8, 0x10, 0x08])
# Error-free, time to parse the response
self.firmwareVersion = "%d.%02d" % (result[10], result[9])
self.bootloaderVersion = "%d.%02d" % (result[12], result[11])
self.hardwareVersion = "%d.%02d" % (result[14], result[13])
self.serialNumber = struct.unpack("<I", struct.pack(">BBBB", *result[15:19]))[0]
self.productId = struct.unpack("<H", struct.pack(">BB", *result[19:21]))[0]
self.localId = result[21]
self.timerCounterMask = result[22]
self.fioAnalog = result[23]
self.fioDirection = result[24]
self.fioState = result[25]
self.eioAnalog = result[26]
self.eioDirection = result[27]
self.eioState = result[28]
self.cioDirection = result[29]
self.cioState = result[30]
self.dac1Enable = result[31]
self.dac0 = result[32]
self.dac1 = result[33]
self.timerClockConfig = result[34]
self.timerClockDivisor = result[35]
if result[35] == 0:
self.timerClockDivisor = 256
self.compatibilityOptions = result[36]
self.versionInfo = result[37]
self.deviceName = 'U3'
if self.versionInfo == 1:
self.deviceName += 'B'
elif self.versionInfo == 2:
self.deviceName += '-LV'
elif self.versionInfo == 18:
self.deviceName += '-HV'
return { 'FirmwareVersion' : self.firmwareVersion, 'BootloaderVersion' : self.bootloaderVersion, 'HardwareVersion' : self.hardwareVersion, 'SerialNumber' : self.serialNumber, 'ProductID' : self.productId, 'LocalID' : self.localId, 'TimerCounterMask' : self.timerCounterMask, 'FIOAnalog' : self.fioAnalog, 'FIODirection' : self.fioDirection, 'FIOState' : self.fioState, 'EIOAnalog' : self.eioAnalog, 'EIODirection' : self.eioDirection, 'EIOState' : self.eioState, 'CIODirection' : self.cioDirection, 'CIOState' : self.cioState, 'DAC1Enable' : self.dac1Enable, 'DAC0' : self.dac0, 'DAC1' : self.dac1, 'TimerClockConfig' : self.timerClockConfig, 'TimerClockDivisor' : self.timerClockDivisor, 'CompatibilityOptions' : self.compatibilityOptions, 'VersionInfo' : self.versionInfo, 'DeviceName' : self.deviceName }
configU3.section = 2
def configIO(self, TimerCounterPinOffset = None, EnableCounter1 = None, EnableCounter0 = None, NumberOfTimersEnabled = None, FIOAnalog = None, EIOAnalog = None, EnableUART = None):
"""
Name: U3.configIO(TimerCounterPinOffset = 4, EnableCounter1 = None, EnableCounter0 = None, NumberOfTimersEnabled = None, FIOAnalog = None, EIOAnalog = None, EnableUART = None)
Args: See section 5.2.3 of the user's guide.
Desc: The configIO command.
Examples:
Simplest:
>>> import u3
>>> d = u3.U3()
>>> print d.configIO()
{
'NumberOfTimersEnabled': 0,
'TimerCounterPinOffset': 4,
'DAC1Enable': 0,
'FIOAnalog': 239,
'EIOAnalog': 0,
'TimerCounterConfig': 64,
'EnableCounter1': False,
'EnableCounter0': False
}
Set all FIOs and EIOs to digital (until power cycle):
>>> import u3
>>> d = u3.U3()
>>> print d.configIO(FIOAnalog = 0, EIOAnalog = 0)
{
'NumberOfTimersEnabled': 0,
'TimerCounterPinOffset': 4,
'DAC1Enable': 0,
'FIOAnalog': 0,
'EIOAnalog': 0,
'TimerCounterConfig': 64,
'EnableCounter1': False,
'EnableCounter0': False
}
"""
writeMask = 0
if EIOAnalog is not None:
writeMask |= 1
writeMask |= 8
if FIOAnalog is not None:
writeMask |= 1
writeMask |= 4
if EnableUART is not None:
writeMask |= 1
writeMask |= (1 << 5)
if TimerCounterPinOffset is not None or EnableCounter1 is not None or EnableCounter0 is not None or NumberOfTimersEnabled is not None :
writeMask |= 1
command = [ 0 ] * 12
#command[0] = Checksum8
command[1] = 0xF8
command[2] = 0x03
command[3] = 0x0B
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
command[6] = writeMask
#command[7] = Reserved
command[8] = 0
if EnableUART is not None:
command[9] = int(EnableUART) << 2
if TimerCounterPinOffset is None:
command[8] |= ( 4 & 15 ) << 4
else:
command[8] |= ( TimerCounterPinOffset & 15 ) << 4
if EnableCounter1 is not None:
command[8] |= 1 << 3
if EnableCounter0 is not None:
command[8] |= 1 << 2
if NumberOfTimersEnabled is not None:
command[8] |= ( NumberOfTimersEnabled & 3 )
if FIOAnalog is not None:
command[10] = FIOAnalog
if EIOAnalog is not None:
command[11] = EIOAnalog
result = self._writeRead(command, 12, [0xF8, 0x03, 0x0B])
self.timerCounterConfig = result[8]
self.numberTimersEnabled = self.timerCounterConfig & 3
self.counter0Enabled = bool( (self.timerCounterConfig >> 2) & 1 )
self.counter1Enabled = bool( (self.timerCounterConfig >> 3) & 1 )
self.timerCounterPinOffset = ( self.timerCounterConfig >> 4 )
self.dac1Enable = result[9]
self.fioAnalog = result[10]
self.eioAnalog = result[11]
return { 'TimerCounterConfig' : self.timerCounterConfig, 'DAC1Enable' : self.dac1Enable, 'FIOAnalog' : self.fioAnalog, 'EIOAnalog' : self.eioAnalog, 'NumberOfTimersEnabled' : self.numberTimersEnabled, 'EnableCounter0' : self.counter0Enabled, 'EnableCounter1' : self.counter1Enabled, 'TimerCounterPinOffset' : self.timerCounterPinOffset }
configIO.section = 2
def configTimerClock(self, TimerClockBase = None, TimerClockDivisor = None):
"""
Name: U3.configTimerClock(TimerClockBase = None, TimerClockDivisor = None)
Args: TimeClockBase, the base for the timer clock.
TimerClockDivisor, the divisor for the clock.
Desc: Writes and reads the time clock configuration. See section 5.2.4
of the user's guide.
Note: TimerClockBase and TimerClockDivisor must be set at the same time.
"""
command = [ 0 ] * 10
#command[0] = Checksum8
command[1] = 0xF8
command[2] = 0x02
command[3] = 0x0A
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
#command[6] = Reserved
#command[7] = Reserved
if TimerClockBase is not None:
command[8] = ( 1 << 7 ) + ( TimerClockBase & 7 )
if TimerClockDivisor is not None:
command[9] = TimerClockDivisor
elif TimerClockDivisor is not None:
raise LabJackException("You can't set just the divisor, must set both.")
result = self._writeRead(command, 10, [0xf8, 0x02, 0x0A])
self.timerClockBase = ( result[8] & 7 )
self.timerClockDivisor = result[9]
return { 'TimerClockBase' : self.timerClockBase, 'TimerClockDivisor' : self.timerClockDivisor }
configTimerClock.section = 2
def toggleLED(self):
"""
Name: U3.toggleLED()
Args: None
Desc: Toggles the state LED on and off.
Example:
>>> import u3
>>> d = u3.U3()
>>> d.toggleLED()
"""
self.getFeedback( LED( not self.ledState ) )
self.ledState = not self.ledState
toggleLED.section = 3
def setFIOState(self, fioNum, state = 1):
"""
Name: U3.setFIOState(fioNum, state = 1)
Args: fioNum, which FIO to change
state, 1 = High, 0 = Low
Desc: A convenience function to set the state of an FIO. Will also
set the direction to output.
Example:
>>> import u3
>>> d = u3.U3()
>>> d.setFIOState(4, state = 1)
"""
self.getFeedback(BitDirWrite(fioNum, 1), BitStateWrite(fioNum, state))
setFIOState.section = 3
def getFIOState(self, fioNum):
"""
Name: U3.getFIOState(fioNum)
Args: fioNum, which FIO to read
Desc: A convenience function to read the state of an FIO.
Example:
>>> import u3
>>> d = u3.U3()
>>> print d.getFIOState(4)
1
"""
return self.getFeedback(BitStateRead(fioNum))[0]
getFIOState.section = 3
def getTemperature(self):
"""
Name: U3.getTemperature()
Args: None
Desc: Reads the internal temperature sensor on the U3. Returns the
temperature in Kelvin.
"""
# Get the calibration data first, otherwise the conversion is way off (10 degC on my U3)
if self.calData is None:
self.getCalibrationData()
bits, = self.getFeedback( AIN(30, 31) )
return self.binaryToCalibratedAnalogTemperature(bits)
def getAIN(self, posChannel, negChannel = 31, longSettle=False, quickSample=False):
"""
Name: U3.getAIN(posChannel, negChannel = 31, longSettle=False,
quickSample=False)
Args: posChannel, the positive channel to read from.
negChannel, the negitive channel to read from.
longSettle, set to True for longSettle
quickSample, set to True for quickSample
Desc: A convenience function to read an AIN.
Example:
>>> import u3
>>> d = u3.U3()
>>> print d.getAIN( 0 )
0.0501680038869
"""
isSpecial = False
if negChannel == 32:
isSpecial = True
negChannel = 30
bits = self.getFeedback(AIN(posChannel, negChannel, longSettle, quickSample))[0]
singleEnded = True
if negChannel != 31:
singleEnded = False
lvChannel = True
try:
if self.deviceName.endswith("-HV") and posChannel < 4:
lvChannel = False
except AttributeError:
pass
if isSpecial:
negChannel = 32
return self.binaryToCalibratedAnalogVoltage(bits, isLowVoltage = lvChannel, isSingleEnded = singleEnded, isSpecialSetting = isSpecial, channelNumber = posChannel)
getAIN.section = 3
def configAnalog(self, *args):
"""
Convenience method to configIO() that adds the given input numbers
in the range FIO0-EIO7 (0-15) to the analog team. That is, it adds
the given bit positions to those already set in the FIOAnalog
and EIOAnalog bitfields.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.configIO()
Sent: [0x47, 0xf8, 0x3, 0xb, 0x40, 0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x0]
Result: [0x56, 0xf8, 0x3, 0xb, 0x4f, 0x0, 0x0, 0x0, 0x40, 0x0, 0xf, 0x0]
{'NumberOfTimersEnabled': 0, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 15, 'EIOAnalog': 0, 'TimerCounterConfig': 64, 'EnableCounter1': False, 'EnableCounter0': False}
>>> d.configAnalog(u3.FIO4, u3.FIO5)
Sent: [0x47, 0xf8, 0x3, 0xb, 0x40, 0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x0]
Result: [0x56, 0xf8, 0x3, 0xb, 0x4f, 0x0, 0x0, 0x0, 0x40, 0x0, 0xf, 0x0]
Sent: [0x93, 0xf8, 0x3, 0xb, 0x8c, 0x0, 0xd, 0x0, 0x40, 0x0, 0x3f, 0x0]
Result: [0x86, 0xf8, 0x3, 0xb, 0x7f, 0x0, 0x0, 0x0, 0x40, 0x0, 0x3f, 0x0]
{'NumberOfTimersEnabled': 0, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 63, 'EIOAnalog': 0, 'TimerCounterConfig': 64, 'EnableCounter1': False, 'EnableCounter0': False}
"""
configIODict = self.configIO()
# Without args, return the same as configIO()
if len(args) == 0:
return configIODict
FIOAnalog, EIOAnalog = configIODict['FIOAnalog'], configIODict['EIOAnalog']
#
for i in args:
if i > EIO7:
pass # Invalid. Must be in the range FIO0-EIO7.
elif i < EIO0:
FIOAnalog |= 2**i
else:
EIOAnalog |= 2**(i-EIO0) # Start the EIO counting at 0, not 8
return self.configIO(FIOAnalog = FIOAnalog, EIOAnalog = EIOAnalog)
def configDigital(self, *args):
"""
The converse of configAnalog(). The convenience method to configIO,
adds the given input numbers in the range FIO0-EIO7 (0-15) to the
digital team. That is, it removes the given bit positions from those
already set in the FIOAnalog and EIOAnalog bitfields.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.configIO()
Sent: [0x47, 0xf8, 0x3, 0xb, 0x40, 0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x0]
Result: [0x56, 0xf8, 0x3, 0xb, 0x4f, 0x0, 0x0, 0x0, 0x40, 0x0, 0xf, 0x0]
{'NumberOfTimersEnabled': 0, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 15, 'EIOAnalog': 0, 'TimerCounterConfig': 64, 'EnableCounter1': False, 'EnableCounter0': False}
>>> d.configAnalog(u3.FIO4, u3.FIO5, u3.EIO0)
Sent: [0x47, 0xf8, 0x3, 0xb, 0x40, 0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x0]
Result: [0x56, 0xf8, 0x3, 0xb, 0x4f, 0x0, 0x0, 0x0, 0x40, 0x0, 0xf, 0x0]
Sent: [0x94, 0xf8, 0x3, 0xb, 0x8d, 0x0, 0xd, 0x0, 0x40, 0x0, 0x3f, 0x1]
Result: [0x87, 0xf8, 0x3, 0xb, 0x80, 0x0, 0x0, 0x0, 0x40, 0x0, 0x3f, 0x1]
{'NumberOfTimersEnabled': 0, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 63, 'EIOAnalog': 1, 'TimerCounterConfig': 64, 'EnableCounter1': False, 'EnableCounter0': False}
>>> d.configDigital(u3.FIO4, u3.FIO5, u3.EIO0)
Sent: [0x47, 0xf8, 0x3, 0xb, 0x40, 0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x0]
Result: [0x87, 0xf8, 0x3, 0xb, 0x80, 0x0, 0x0, 0x0, 0x40, 0x0, 0x3f, 0x1]
Sent: [0x63, 0xf8, 0x3, 0xb, 0x5c, 0x0, 0xd, 0x0, 0x40, 0x0, 0xf, 0x0]
Result: [0x56, 0xf8, 0x3, 0xb, 0x4f, 0x0, 0x0, 0x0, 0x40, 0x0, 0xf, 0x0]
{'NumberOfTimersEnabled': 0, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 15, 'EIOAnalog': 0, 'TimerCounterConfig': 64, 'EnableCounter1': False, 'EnableCounter0': False}
"""
configIODict = self.configIO()
# Without args, return the same as configIO()
if len(args) == 0:
return configIODict
FIOAnalog, EIOAnalog = configIODict['FIOAnalog'], configIODict['EIOAnalog']
#
for i in args:
if i > EIO7:
pass # Invalid. Must be in the range FIO0-EIO7.
elif i < EIO0:
if FIOAnalog & 2**i: # If it is set
FIOAnalog ^= 2**i # Remove it
else:
if EIOAnalog & 2**(i-EIO0): # Start the EIO counting at 0, not 8
EIOAnalog ^= 2**(i-EIO0)
return self.configIO(FIOAnalog = FIOAnalog, EIOAnalog = EIOAnalog)
def _buildBuffer(self, sendBuffer, readLen, commandlist):
"""
Builds up the buffer to be written for getFeedback
"""
for cmd in commandlist:
if isinstance(cmd, FeedbackCommand):
sendBuffer += cmd.cmdBytes
readLen += cmd.readLen
elif isinstance(cmd, list):
sendBuffer, readLen = self._buildBuffer(sendBuffer, readLen, cmd)
return (sendBuffer, readLen)
_buildBuffer.section = 4
def _buildFeedbackResults(self, rcvBuffer, commandlist, results, i):
"""
Builds the result list from the results of getFeedback
"""
for cmd in commandlist:
if isinstance(cmd, FeedbackCommand):
results.append(cmd.handle(rcvBuffer[i:i+cmd.readLen]))
i += cmd.readLen
elif isinstance(cmd, list):
self._buildFeedbackResults(rcvBuffer, cmd, results, i)
return results
_buildFeedbackResults.section = 4
def getFeedback(self, *commandlist):
"""
Name: U3.getFeedback(commandlist)
Args: the FeedbackCommands to run
Desc: Forms the commandlist into a packet, sends it to the U3, and reads the response.
Examples:
>>> myU3 = u3.U3()
>>> ledCommand = u3.LED(False)
>>> ain0Command = u3.AIN(0, 31, True)
>>> myU3.getFeedback(ledCommand, ain0Command)
[None, 9376]
OR if you like the list version better:
>>> myU3 = U3()
>>> ledCommand = u3.LED(False)
>>> ain0Command = u3.AIN(30, 31, True)
>>> commandList = [ ledCommand, ain0Command ]
>>> myU3.getFeedback(commandList)
[None, 9376]
"""
sendBuffer = [0] * 7
sendBuffer[1] = 0xF8
readLen = 9
sendBuffer, readLen = self._buildBuffer(sendBuffer, readLen, commandlist)
if len(sendBuffer) % 2:
sendBuffer += [0]
sendBuffer[2] = len(sendBuffer) / 2 - 3
if readLen % 2:
readLen += 1
if len(sendBuffer) > MAX_USB_PACKET_LENGTH:
raise LabJackException("ERROR: The feedback command you are attempting to send is bigger than 64 bytes ( %s bytes ). Break your commands up into separate calls to getFeedback()." % len(sendBuffer))
if readLen > MAX_USB_PACKET_LENGTH:
raise LabJackException("ERROR: The feedback command you are attempting to send would yield a response that is greater than 64 bytes ( %s bytes ). Break your commands up into separate calls to getFeedback()." % readLen)
rcvBuffer = self._writeRead(sendBuffer, readLen, [], checkBytes = False, stream = False, checksum = True)
# Check the response for errors
try:
self._checkCommandBytes(rcvBuffer, [0xF8])
if rcvBuffer[3] != 0x00:
raise LabJackException("Got incorrect command bytes")
except LowlevelErrorException, e:
if isinstance(commandlist[0], list):
culprit = commandlist[0][ (rcvBuffer[7] -1) ]
else:
culprit = commandlist[ (rcvBuffer[7] -1) ]
raise LowlevelErrorException("\nThis Command\n %s\nreturned an error:\n %s" % (culprit , lowlevelErrorToString(rcvBuffer[6])))
results = []
i = 9
return self._buildFeedbackResults(rcvBuffer, commandlist, results, i)
getFeedback.section = 2
def readMem(self, blockNum, readCal=False):
"""
Name: U3.readMem(blockNum, readCal=False)
Args: blockNum, which block to read from
readCal, set to True to read from calibration instead.
Desc: Reads 1 block (32 bytes) from the non-volatile user or
calibration memory. Please read section 5.2.6 of the user's guide
before you do something you may regret.
NOTE: Do not call this function while streaming.
"""
command = [ 0 ] * 8
#command[0] = Checksum8
command[1] = 0xF8
command[2] = 0x01
command[3] = 0x2A
if readCal:
command[3] = 0x2D
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
command[6] = 0x00
command[7] = blockNum
result = self._writeRead(command, 40, [0xF8, 0x11, command[3]])
return result[8:]
readMem.section = 2
def readCal(self, blockNum):
"""
Name: U3.readCal(blockNum)
Args: blockNum, which block to read
Desc: See the description of readMem and section 5.2.6 of the user's
guide.
Note: Do not call this function while streaming.
"""
return self.readMem(blockNum, readCal = True)
readCal.section = 2
def writeMem(self, blockNum, data, writeCal=False):
"""
Name: U3.writeMem(blockNum, data, writeCal=False)
Args: blockNum, which block to write
data, a list of bytes to write.
writeCal, set to True to write to calibration instead
Desc: Writes 1 block (32 bytes) from the non-volatile user or
calibration memory. Please read section 5.2.7 of the user's guide
before you do something you may regret. Memory must be erased
before writing.
Note: Do not call this function while streaming.
"""
if not isinstance(data, list):
raise LabJackException("Data must be a list of bytes")
command = [ 0 ] * 40
#command[0] = Checksum8
command[1] = 0xF8
command[2] = 0x11
command[3] = 0x28
if writeCal:
command[3] = 0x2B
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
command[6] = 0x00
command[7] = blockNum
command[8:] = data
self._writeRead(command, 8, [0xF8, 0x01, command[3]])
writeMem.section = 2
def writeCal(self, blockNum):
"""
Name: U3.writeCal(blockNum, data)
Args: blockNum, which block to write
data, a list of bytes
Desc: See the description of writeMem and section 5.2.7 of the user's
guide.
Note: Do not call this function while streaming.
"""
return self.writeMem(blockNum, data, writeCal = True)
writeCal.section = 2
def eraseMem(self, eraseCal=False):
"""
Name: U3.eraseMem(eraseCal=False)
Args: eraseCal, set to True to erase the calibration memory instead
Desc: The U3 uses flash memory that must be erased before writing.
Please read section 5.2.8 of the user's guide before you do
something you may regret.
Note: Do not call this function while streaming.
"""
if eraseCal:
command = [ 0 ] * 8
#command[0] = Checksum8
command[1] = 0xF8
command[2] = 0x01
command[3] = 0x2C
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
command[6] = 0x4C
command[7] = 0x6C
else:
command = [ 0 ] * 6
#command[0] = Checksum8
command[1] = 0xF8
command[2] = 0x00
command[3] = 0x29
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
self._writeRead(command, 8, [0xF8, 0x01, command[3]])
eraseMem.section = 2
def eraseCal(self):
"""
Name: U3.eraseCal()
Args: None
Desc: See the description of writeMem and section 5.2.8 of the user's
guide.
Note: Do not call this function while streaming.
"""
return self.eraseMem(eraseCal = True)
eraseCal.section = 2
def reset(self, hardReset = False):
"""
Name: U3.reset(hardReset = False)
Args: hardReset, set to True for a hard reset.
Desc: Causes a soft or hard reset. A soft reset consists of
re-initializing most variables without re-enumeration. A hard
reset is a reboot of the processor and does cause re-enumeration.
See section 5.2.9 of the User's guide.
"""
command = [ 0 ] * 4
#command[0] = Checksum8
command[1] = 0x99
command[2] = 1
if hardReset:
command[2] = 2
command[3] = 0x00
command = setChecksum8(command, 4)
self._writeRead(command, 4, [], False, False, False)
reset.section = 2
def streamConfig(self, NumChannels = 1, SamplesPerPacket = 25, InternalStreamClockFrequency = 0, DivideClockBy256 = False, Resolution = 3, ScanInterval = 1, PChannels = [30], NChannels = [31], SampleFrequency = None):
"""
Name: U3.streamConfig(NumChannels = 1, SamplesPerPacket = 25,
InternalStreamClockFrequency = 0,
DivideClockBy256 = False, Resolution = 3,
ScanInterval = 1, PChannels = [30],
NChannels = [31], SampleFrequency = None)
Args: NumChannels, the number of channels to stream
Resolution, the resolution of the samples (0 - 3)
PChannels, a list of channel numbers to stream
NChannels, a list of channel options bytes
Set Either:
SampleFrequency, the frequency in Hz to sample
-- OR --
SamplesPerPacket, how many samples make one packet
InternalStreamClockFrequency, 0 = 4 MHz, 1 = 48 MHz
DivideClockBy256, True = divide the clock by 256
ScanInterval, clock/ScanInterval = frequency.
Desc: Stream mode operates on a table of channels that are scanned
at the specified scan rate. Before starting a stream, you need
to call this function to configure the table and scan clock.
Note: Requires U3 hardware version 1.21 or greater.
"""
if len(PChannels) != NumChannels:
raise LabJackException("Length of PChannels didn't match NumChannels")
if len(NChannels) != NumChannels:
raise LabJackException("Length of NChannels didn't match NumChannels")
if len(PChannels) != len(NChannels):
raise LabJackException("Length of PChannels didn't match the length of NChannels")
if SampleFrequency != None:
if SampleFrequency < 1000:
if SampleFrequency < 25:
SamplesPerPacket = SampleFrequency
DivideClockBy256 = True
ScanInterval = 15625/SampleFrequency
else:
DivideClockBy256 = False
ScanInterval = 4000000/SampleFrequency
# Force Scan Interval into correct range
ScanInterval = min( ScanInterval, 65535 )
ScanInterval = int( ScanInterval )
ScanInterval = max( ScanInterval, 1 )
# Same with Samples per packet
SamplesPerPacket = max( SamplesPerPacket, 1)
SamplesPerPacket = int( SamplesPerPacket )
SamplesPerPacket = min ( SamplesPerPacket, 25)
command = [ 0 ] * ( 12 + (NumChannels * 2) )
#command[0] = Checksum8
command[1] = 0xF8
command[2] = NumChannels+3
command[3] = 0x11
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
command[6] = NumChannels
command[7] = SamplesPerPacket
#command[8] = Reserved
command[9] |= ( InternalStreamClockFrequency & 0x01 ) << 3
if DivideClockBy256:
command[9] |= 1 << 2
command[9] |= ( Resolution & 3 )
t = struct.pack("<H", ScanInterval)
command[10] = ord(t[0])
command[11] = ord(t[1])
for i in range(NumChannels):
command[12+(i*2)] = PChannels[i]
command[13+(i*2)] = NChannels[i]
self._writeRead(command, 8, [0xF8, 0x01, 0x11])
self.streamSamplesPerPacket = SamplesPerPacket
self.streamChannelNumbers = PChannels
self.streamNegChannels = NChannels
self.streamConfiged = True
if InternalStreamClockFrequency == 1:
freq = float(48000000)
else:
freq = float(4000000)
if DivideClockBy256:
freq /= 256
freq = freq/ScanInterval
self.packetsPerRequest = max(1, int(freq/SamplesPerPacket))
self.packetsPerRequest = min(self.packetsPerRequest, 48)
streamConfig.section = 2
def processStreamData(self, result, numBytes = None):
"""
Name: U3.processStreamData(result, numBytes = None)
Args: result, the string returned from streamData()
numBytes, the number of bytes per packet.
Desc: Breaks stream data into individual channels and applies
calibrations.
>>> reading = d.streamData(convert = False)
>>> print proccessStreamData(reading['result'])
defaultDict(list, {'AIN0' : [3.123, 3.231, 3.232, ...]})
"""
if numBytes is None:
numBytes = 14 + (self.streamSamplesPerPacket * 2)
returnDict = collections.defaultdict(list)
for packet in self.breakupPackets(result, numBytes):
for sample in self.samplesFromPacket(packet):
if self.streamPacketOffset >= len(self.streamChannelNumbers):
self.streamPacketOffset = 0
if self.streamChannelNumbers[self.streamPacketOffset] in (193, 194):
value = struct.unpack('<BB', sample )
elif self.streamChannelNumbers[self.streamPacketOffset] in (200, 201, 210, 211, 224):
value = struct.unpack('<H', sample )[0]
else:
if self.streamNegChannels[self.streamPacketOffset] != 31:
# do signed
value = struct.unpack('<H', sample )[0]
singleEnded = False
else:
# do unsigned
value = struct.unpack('<H', sample )[0]
singleEnded = True
lvChannel = True
if self.deviceName.lower().endswith('hv') and self.streamChannelNumbers[self.streamPacketOffset] < 4:
lvChannel = False
value = self.binaryToCalibratedAnalogVoltage(value, isLowVoltage = lvChannel, isSingleEnded = singleEnded, channelNumber = self.streamChannelNumbers[self.streamPacketOffset])
returnDict["AIN%s" % self.streamChannelNumbers[self.streamPacketOffset]].append(value)
self.streamPacketOffset += 1
return returnDict
processStreamData.section = 3
def watchdog(self, ResetOnTimeout = False, SetDIOStateOnTimeout = False, TimeoutPeriod = 60, DIOState = 0, DIONumber = 0, onlyRead=False):
"""
Name: U3.watchdog(ResetOnTimeout = False, SetDIOStateOnTimeout = False,
TimeoutPeriod = 60, DIOState = 0, DIONumber = 0,
onlyRead = False)
Args: Check out section 5.2.14 of the user's guide.
Set onlyRead to True to perform only a read
Desc: This function will write the configuration of the watchdog,
unless onlyRead is set to True.
Returns a dictionary:
{
'WatchDogEnabled' : True if the watchdog is enabled, otherwise False
'ResetOnTimeout' : If True, the device will reset on timeout.
'SetDIOStateOnTimeout' : If True, the state of a DIO will be set
'TimeoutPeriod' : Timeout Period in seconds
'DIOState' : The state the DIO will be set to on timeout
'DIONumber' : Which DIO will be set on timeout
}
NOTE: Requires U3 hardware version 1.21 or greater.
"""
command = [ 0 ] * 16
#command[0] = Checksum8
command[1] = 0xF8
command[2] = 0x05
command[3] = 0x09
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
if not onlyRead:
command[6] = 1
if ResetOnTimeout:
command[7] |= 1 << 5
if SetDIOStateOnTimeout:
command[7] |= 1 << 4
t = struct.pack("<H", TimeoutPeriod)
command[8] = ord(t[0])
command[9] = ord(t[1])
command[10] = (( DIOState & 1 ) << 7) + ( DIONumber & 15)
result = self._writeRead(command, 16, [0xF8, 0x05, 0x09])
watchdogStatus = {}
if result[7] == 0 or result[7] == 255:
watchdogStatus['WatchDogEnabled'] = False
watchdogStatus['ResetOnTimeout'] = False
watchdogStatus['SetDIOStateOnTimeout'] = False
else:
watchdogStatus['WatchDogEnabled'] = True
if (( result[7] >> 5 ) & 1):
watchdogStatus['ResetOnTimeout'] = True
else:
watchdogStatus['ResetOnTimeout'] = False
if (( result[7] >> 4 ) & 1):
watchdogStatus['SetDIOStateOnTimeout'] = True
else:
watchdogStatus['SetDIOStateOnTimeout'] = False
watchdogStatus['TimeoutPeriod'] = struct.unpack('<H', struct.pack("BB", *result[8:10]))
if (( result[10] >> 7 ) & 1):
watchdogStatus['DIOState'] = 1
else:
watchdogStatus['DIOState'] = 0
watchdogStatus['DIONumber'] = ( result[10] & 15 )
return watchdogStatus
watchdog.section = 2
SPIModes = { 'A' : 0, 'B' : 1, 'C' : 2, 'D' : 3 }
def spi(self, SPIBytes, AutoCS=True, DisableDirConfig = False, SPIMode = 'A', SPIClockFactor = 0, CSPINNum = 4, CLKPinNum = 5, MISOPinNum = 6, MOSIPinNum = 7):
"""
Name: U3.spi(SPIBytes, AutoCS=True, DisableDirConfig = False,
SPIMode = 'A', SPIClockFactor = 0, CSPINNum = 4,
CLKPinNum = 5, MISOPinNum = 6, MOSIPinNum = 7)
Args: SPIBytes, a list of bytes to be transferred.
See Section 5.2.15 of the user's guide.
Desc: Sends and receives serial data using SPI synchronous
communication.
NOTE: Requires U3 hardware version 1.21 or greater.
"""
if not isinstance(SPIBytes, list):
raise LabJackException("SPIBytes MUST be a list of bytes")
numSPIBytes = len(SPIBytes)
oddPacket = False
if numSPIBytes%2 != 0:
SPIBytes.append(0)
numSPIBytes = numSPIBytes + 1
oddPacket = True
command = [ 0 ] * (13 + numSPIBytes)
#command[0] = Checksum8
command[1] = 0xF8
command[2] = 4 + (numSPIBytes/2)
command[3] = 0x3A
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
if AutoCS:
command[6] |= (1 << 7)
if DisableDirConfig:
command[6] |= (1 << 6)
command[6] |= ( self.SPIModes[SPIMode] & 3 )
command[7] = SPIClockFactor
#command[8] = Reserved
command[9] = CSPINNum
command[10] = CLKPinNum
command[11] = MISOPinNum
command[12] = MOSIPinNum
command[13] = numSPIBytes
if oddPacket:
command[13] = numSPIBytes - 1
command[14:] = SPIBytes
result = self._writeRead(command, 8+numSPIBytes, [ 0xF8, 1+(numSPIBytes/2), 0x3A ])
return result[8:]
spi.section = 2
def asynchConfig(self, Update = True, UARTEnable = True, DesiredBaud = 9600, olderHardware = False, configurePins = True ):
"""
Name: U3.asynchConfig(Update = True, UARTEnable = True,
DesiredBaud = 9600, olderHardware = False,
configurePins = True)
Args: See section 5.2.16 of the User's Guide.
olderHardware, If using hardware 1.21, please set olderHardware
to True and read the timer configuration first.
configurePins, Will call the configIO to set up pins for you.
Desc: Configures the U3 UART for asynchronous communication.
returns a dictionary:
{
'Update' : True means new parameters were written
'UARTEnable' : True means the UART is enabled
'BaudFactor' : The baud factor being used
}
Note: Requires U3 hardware version 1.21+.
"""
if configurePins:
self.configIO(EnableUART=True)
command = [ 0 ] * 10
#command[0] = Checksum8
command[1] = 0xF8
command[2] = 0x02
command[3] = 0x14
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
#command[6] = 0x00
if Update:
command[7] |= ( 1 << 7 )
if UARTEnable:
command[7] |= ( 1 << 6 )
#command[8] = Reserved
if olderHardware:
command[9] = (2**8) - self.timerClockBase/DesiredBaud
else:
BaudFactor = (2**16) - 48000000/(2 * DesiredBaud)
t = struct.pack("<H", BaudFactor)
command[8] = ord(t[0])
command[9] = ord(t[1])
if olderHardware:
result = self._writeRead(command, 10, [0xF8, 0x02, 0x14])
else:
result = self._writeRead(command, 10, [0xF8, 0x02, 0x14])
returnDict = {}
if ( ( result[7] >> 7 ) & 1 ):
returnDict['Update'] = True
else:
returnDict['Update'] = False
if ( ( result[7] >> 6 ) & 1):
returnDict['UARTEnable'] = True
else:
returnDict['UARTEnable'] = False
if olderHardware:
returnDict['BaudFactor'] = result[9]
else:
returnDict['BaudFactor'] = struct.unpack("<H", struct.pack("BB", *result[8:]))[0]
return returnDict
asynchConfig.section = 2
def asynchTX(self, AsynchBytes):
"""
Name: U3.asynchTX(AsynchBytes)
Args: AsynchBytes, must be a list of bytes to transfer.
Desc: Sends bytes to the U3 UART which will be sent asynchronously on
the transmit line. See section 5.2.17 of the user's guide.
returns a dictionary:
{
'NumAsynchBytesSent' : Number of Asynch Bytes Sent
'NumAsynchBytesInRXBuffer' : How many bytes are currently in the
RX buffer.
}
Note: Requres U3 hardware version 1.21 or greater.
"""
if not isinstance(AsynchBytes, list):
raise LabJackException("AsynchBytes must be a list")
numBytes = len(AsynchBytes)
oddPacket = False
if numBytes%2 != 0:
AsynchBytes.append(0)
numBytes = numBytes+1
oddPacket = True
command = [ 0 ] * ( 8 + numBytes)
#command[0] = Checksum8
command[1] = 0xF8
command[2] = 1 + ( numBytes/2 )
command[3] = 0x15
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
#command[6] = 0x00
command[7] = numBytes
if oddPacket:
command[7] = numBytes - 1
command[8:] = AsynchBytes
result = self._writeRead(command, 10, [0xF8, 0x02, 0x15])
return { 'NumAsynchBytesSent' : result[7], 'NumAsynchBytesInRXBuffer' : result[8] }
asynchTX.section = 2
def asynchRX(self, Flush = False):
"""
Name: U3.asynchRX(Flush = False)
Args: Flush, Set to True to flush
Desc: Reads the oldest 32 bytes from the U3 UART RX buffer
(received on receive terminal). The buffer holds 256 bytes. See
section 5.2.18 of the User's Guide.
returns a dictonary:
{
'AsynchBytes' : List of received bytes
'NumAsynchBytesInRXBuffer' : Number of AsynchBytes are in the RX
Buffer.
}
Note: Requres U3 hardware version 1.21 or greater.
"""
command = [ 0 ] * 8
#command[0] = Checksum8
command[1] = 0xF8
command[2] = 0x01
command[3] = 0x16
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
#command[6] = 0x00
if Flush:
command[7] = 1
result = self._writeRead(command, 40, [0xF8, 0x11, 0x16])
return { 'AsynchBytes' : result[8:], 'NumAsynchBytesInRXBuffer' : result[7] }
asynchRX.section = 2
def i2c(self, Address, I2CBytes, ResetAtStart = False, EnableClockStretching = False, SpeedAdjust = 0, SDAPinNum = 6, SCLPinNum = 7, NumI2CBytesToReceive = 0, AddressByte = None):
"""
Name: U3.i2c(Address, I2CBytes, ResetAtStart = False,
EnableClockStretching = False, SpeedAdjust = 0,
SDAPinNum = 6, SCLPinNum = 7, NumI2CBytesToReceive = 0,
AddressByte = None)
Args: Address, the address (not shifted over)
I2CBytes, must be a list of bytes to send.
See section 5.2.19 of the user's guide.
AddressByte, use this if you don't want a shift applied.
This address will be put it in the low-level
packet directly and overrides Address. Optional.
Desc: Sends and receives serial data using I2C synchronous
communication.
Note: Requires hardware version 1.21 or greater.
"""
if not isinstance(I2CBytes, list):
raise LabJackException("I2CBytes must be a list")
numBytes = len(I2CBytes)
oddPacket = False
if numBytes%2 != 0:
I2CBytes.append(0)
numBytes = numBytes + 1
oddPacket = True
command = [ 0 ] * (14 + numBytes)
#command[0] = Checksum8
command[1] = 0xF8
command[2] = 4 + (numBytes/2)
command[3] = 0x3B
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
if ResetAtStart:
command[6] |= (1 << 1)
if EnableClockStretching:
command[6] |= (1 << 3)
command[7] = SpeedAdjust
command[8] = SDAPinNum
command[9] = SCLPinNum
if AddressByte != None:
command[10] = AddressByte
else:
command[10] = Address << 1
command[12] = numBytes
if oddPacket:
command[12] = numBytes-1
command[13] = NumI2CBytesToReceive
command[14:] = I2CBytes
oddResponse = False
if NumI2CBytesToReceive%2 != 0:
NumI2CBytesToReceive = NumI2CBytesToReceive+1
oddResponse = True
result = self._writeRead(command, 12+NumI2CBytesToReceive, [0xF8, (3+(NumI2CBytesToReceive/2)), 0x3B])
if len(result) > 12:
if oddResponse:
return { 'AckArray' : result[8:12], 'I2CBytes' : result[12:-1] }
else:
return { 'AckArray' : result[8:12], 'I2CBytes' : result[12:] }
else:
return { 'AckArray' : result[8:], 'I2CBytes' : [] }
i2c.section = 2
def sht1x(self, DataPinNum = 4, ClockPinNum = 5, SHTOptions = 0xc0):
"""
Name: U3.sht1x(DataPinNum = 4, ClockPinNum = 5, SHTOptions = 0xc0)
Args: See section 5.2.20 of the user's guide.
SHTOptions, see below.
Desc: Reads temperature and humidity from a Sensirion SHT1X sensor
(which is used by the EI-1050).
Returns a dictonary:
{
'StatusReg' : SHT1X status register
'StatusRegCRC' : SHT1X status register CRC value
'Temperature' : The temperature in C
'TemperatureCRC' : The CRC value for the temperature
'Humidity' : The humidity
'HumidityCRC' : The CRC value for the humidity
}
Note: Requires hardware version 1.21 or greater.
SHTOptions (and proof people read documentation):
bit 7 = Read Temperature
bit 6 = Read Realtive Humidity
bit 2 = Heater. 1 = on, 0 = off
bit 1 = Reserved at 0
bit 0 = Resolution. 1 = 8 bit RH, 12 bit T; 0 = 12 RH, 14 bit T
"""
command = [ 0 ] * 10
#command[0] = Checksum8
command[1] = 0xF8
command[2] = 0x02
command[3] = 0x39
#command[4] = Checksum16 (LSB)
#command[5] = Checksum16 (MSB)
command[6] = DataPinNum
command[7] = ClockPinNum
#command[8] = Reserved
command[9] = SHTOptions
result = self._writeRead(command, 16, [0xF8, 0x05, 0x39])
val = (result[11]*256) + result[10]
temp = -39.60 + 0.01*val
val = (result[14]*256) + result[13]
humid = -4 + 0.0405*val + -.0000028*(val*val)
humid = (temp - 25)*(0.01 + 0.00008*val) + humid
return { 'StatusReg' : result[8], 'StatusRegCRC' : result[9], 'Temperature' : temp, 'TemperatureCRC' : result[12] , 'Humidity' : humid, 'HumidityCRC' : result[15] }
sht1x.section = 2
def binaryToCalibratedAnalogVoltage(self, bits, isLowVoltage = True, isSingleEnded = True, isSpecialSetting = False, channelNumber = 0):
"""
Name: U3.binaryToCalibratedAnalogVoltage(bits, isLowVoltage = True,
isSingleEnded = True,
isSpecialSetting = False,
channelNumber = 0)
Args: bits, the binary value of the reading.
isLowVoltage, True if the reading came from a low-voltage channel
isSingleEnded, True if the reading is not differential
isSpecialSetting, True if the reading came from special range
channelNumber, used to apply the correct calibration for HV
Desc: Converts the bits returned from AIN functions into a calibrated
voltage.
Example:
>>> import u3
>>> d = u3.U3()
>>> bits = d.getFeedback( u3.AIN(0, 31))[0]
>>> print bits
1248
>>> print d.binaryToCalibratedAnalogVoltage(bits)
0.046464288000000006
"""
hasCal = self.calData is not None
if isLowVoltage:
if isSingleEnded and not isSpecialSetting:
if hasCal:
return ( bits * self.calData['lvSESlope'] ) + self.calData['lvSEOffset']
else:
return ( bits * 0.000037231 ) + 0
elif isSpecialSetting:
if hasCal:
return ( bits * self.calData['lvDiffSlope'] ) + self.calData['lvDiffOffset'] + self.calData['vRefAtCAl']
else:
return (bits * 0.000074463)
else:
if hasCal:
return ( bits * self.calData['lvDiffSlope'] ) + self.calData['lvDiffOffset']
else:
return (bits * 0.000074463) - 2.44
else:
if isSingleEnded and not isSpecialSetting:
if hasCal:
return ( bits * self.calData['hvAIN%sSlope' % channelNumber] ) + self.calData['hvAIN%sOffset' % channelNumber]
else:
return ( bits * 0.000314 ) + -10.3
elif isSpecialSetting:
if hasCal:
hvSlope = self.calData['hvAIN%sSlope' % channelNumber]
hvOffset = self.calData['hvAIN%sOffset' % channelNumber]
diffR = ( bits * self.calData['lvDiffSlope'] ) + self.calData['lvDiffOffset'] + self.calData['vRefAtCAl']
reading = diffR * hvSlope / self.calData['lvSESlope'] + hvOffset
return reading
else:
return (bits * 0.000074463) * (0.000314 / 0.000037231) + -10.3
else:
raise Exception, "Can't do differential on high voltage channels"
binaryToCalibratedAnalogVoltage.section = 3
def binaryToCalibratedAnalogTemperature(self, bytesTemperature):
hasCal = self.calData is not None
if hasCal:
return self.calData['tempSlope'] * float(bytesTemperature)
else:
return float(bytesTemperature) * 0.013021
def voltageToDACBits(self, volts, dacNumber = 0, is16Bits = False):
"""
Name: U3.voltageToDACBits(volts, dacNumber = 0, is16Bits = False)
Args: volts, the voltage you would like to set the DAC to.
dacNumber, 0 or 1, helps apply the correct calibration
is16Bits, True if you are going to use the 16-bit DAC command
Desc: Takes a voltage, and turns it into the bits needed for the DAC
Feedback commands.
"""
if self.calData is not None:
if is16Bits:
bits = ( volts * self.calData['dac%sSlope' % dacNumber] * 256) + self.calData['dac%sOffset' % dacNumber] * 256
else:
bits = ( volts * self.calData['dac%sSlope' % dacNumber] ) + self.calData['dac%sOffset' % dacNumber]
else:
bits = ( volts / 4.95 ) * 256
return int(bits)
voltageToDACBits.section = 3
def getCalibrationData(self):
"""
Name: U3.getCalibrationData()
Args: None
Desc: Reads in the U3's calibrations, so they can be applied to
readings. Section 2.6.2 of the User's Guide is helpful. Sets up
an internal calData dict for any future calls that need
calibration.
"""
self.calData = dict()
calData = self.readCal(0)
self.calData['lvSESlope'] = toDouble(calData[0:8])
self.calData['lvSEOffset'] = toDouble(calData[8:16])
self.calData['lvDiffSlope'] = toDouble(calData[16:24])
self.calData['lvDiffOffset'] = toDouble(calData[24:32])
calData = self.readCal(1)
self.calData['dac0Slope'] = toDouble(calData[0:8])
self.calData['dac0Offset'] = toDouble(calData[8:16])
self.calData['dac1Slope'] = toDouble(calData[16:24])
self.calData['dac1Offset'] = toDouble(calData[24:32])
calData = self.readCal(2)
self.calData['tempSlope'] = toDouble(calData[0:8])
self.calData['vRefAtCAl'] = toDouble(calData[8:16])
self.calData['vRef1.5AtCal'] = toDouble(calData[16:24])
self.calData['vRegAtCal'] = toDouble(calData[24:32])
try:
#these blocks do not exist on hardware revisions < 1.30
calData = self.readCal(3)
self.calData['hvAIN0Slope'] = toDouble(calData[0:8])
self.calData['hvAIN1Slope'] = toDouble(calData[8:16])
self.calData['hvAIN2Slope'] = toDouble(calData[16:24])
self.calData['hvAIN3Slope'] = toDouble(calData[24:32])
calData = self.readCal(4)
self.calData['hvAIN0Offset'] = toDouble(calData[0:8])
self.calData['hvAIN1Offset'] = toDouble(calData[8:16])
self.calData['hvAIN2Offset'] = toDouble(calData[16:24])
self.calData['hvAIN3Offset'] = toDouble(calData[24:32])
except LowlevelErrorException, ex:
if ex.errorCode != 26:
#not an invalid block error, so do not disregard
raise ex
return self.calData
getCalibrationData.section = 3
def readDefaultsConfig(self):
"""
Name: U3.readDefaultsConfig( )
Args: None
Desc: Reads the power-up defaults stored in flash.
"""
results = dict()
defaults = self.readDefaults(0)
results['FIODirection'] = defaults[4]
results['FIOState'] = defaults[5]
results['FIOAnalog'] = defaults[6]
results['EIODirection'] = defaults[8]
results['EIOState'] = defaults[9]
results['EIOAnalog'] = defaults[10]
results['CIODirection'] = defaults[12]
results['CIOState'] = defaults[13]
results['NumOfTimersEnable'] = defaults[17]
results['CounterMask'] = defaults[18]
results['PinOffset'] = defaults[19]
results['Options'] = defaults[20]
defaults = self.readDefaults(1)
results['ClockSource'] = defaults[0]
results['Divisor'] = defaults[1]
results['TMR0Mode'] = defaults[16]
results['TMR0ValueL'] = defaults[17]
results['TMR0ValueH'] = defaults[18]
results['TMR1Mode'] = defaults[20]
results['TMR1ValueL'] = defaults[21]
results['TMR1ValueH'] = defaults[22]
defaults = self.readDefaults(2)
results['DAC0'] = struct.unpack( ">H", struct.pack("BB", *defaults[16:18]) )[0]
results['DAC1'] = struct.unpack( ">H", struct.pack("BB", *defaults[20:22]) )[0]
defaults = self.readDefaults(3)
for i in range(16):
results["AIN%sNegChannel" % i] = defaults[i]
return results
readDefaultsConfig.section = 3
def exportConfig(self):
"""
Name: U3.exportConfig( )
Args: None
Desc: Takes the current configuration and puts it into a ConfigParser
object. Useful for saving the setup of your U3.
"""
# Make a new configuration file
parser = ConfigParser.SafeConfigParser()
# Change optionxform so that options preserve their case.
parser.optionxform = str
# Local Id and name
self.configU3()
section = "Identifiers"
parser.add_section(section)
parser.set(section, "Local ID", str(self.localId))
parser.set(section, "Name", str(self.getName()))
parser.set(section, "Device Type", str(self.devType))
# FIO Direction / State
section = "FIOs"
parser.add_section(section)
dirs, states = self.getFeedback( PortDirRead(), PortStateRead() )
parser.set(section, "FIOs Analog", str( self.readRegister(50590) ))
parser.set(section, "EIOs Analog", str( self.readRegister(50591) ))
for key, value in dirs.items():
parser.set(section, "%s Directions" % key, str(value))
for key, value in states.items():
parser.set(section, "%s States" % key, str(value))
# DACs
section = "DACs"
parser.add_section(section)
dac0 = self.readRegister(5000)
dac0 = max(dac0, 0)
dac0 = min(dac0, 5)
parser.set(section, "DAC0", "%0.2f" % dac0)
dac1 = self.readRegister(5002)
dac1 = max(dac1, 0)
dac1 = min(dac1, 5)
parser.set(section, "DAC1", "%0.2f" % dac1)
# Timer Clock Configuration
section = "Timer Clock Speed Configuration"
parser.add_section(section)
timerclockconfig = self.configTimerClock()
for key, value in timerclockconfig.items():
parser.set(section, key, str(value))
# Timers / Counters
section = "Timers And Counters"
parser.add_section(section)
timerCounterConfig = self.configIO()
nte = timerCounterConfig['NumberOfTimersEnabled']
ec0 = timerCounterConfig['EnableCounter0']
ec1 = timerCounterConfig['EnableCounter1']
cpo = timerCounterConfig['TimerCounterPinOffset']
parser.set(section, "NumberTimersEnabled", str(nte) )
parser.set(section, "Counter0Enabled", str(ec0) )
parser.set(section, "Counter1Enabled", str(ec1) )
parser.set(section, "TimerCounterPinOffset", str(cpo) )
for i in range(nte):
mode, value = self.readRegister(7100 + (2*i), numReg = 2, format = ">HH")
parser.set(section, "Timer%i Mode" % i, str(mode))
parser.set(section, "Timer%i Value" % i, str(value))
return parser
exportConfig.section = 3
def loadConfig(self, configParserObj):
"""
Name: U3.loadConfig( configParserObj )
Args: configParserObj, A Config Parser object to load in
Desc: Takes a configuration and updates the U3 to match it.
"""
parser = configParserObj
# Set Identifiers:
section = "Identifiers"
if parser.has_section(section):
if parser.has_option(section, "device type"):
if parser.getint(section, "device type") != self.devType:
raise Exception("Not a U3 Config file.")
if parser.has_option(section, "local id"):
self.configU3( LocalID = parser.getint(section, "local id"))
if parser.has_option(section, "name"):
self.setName( parser.get(section, "name") )
# Set FIOs:
section = "FIOs"
if parser.has_section(section):
fioanalog = 0
eioanalog = 0
fiodirs = 0
eiodirs = 0
ciodirs = 0
fiostates = 0
eiostates = 0
ciostates = 0
if parser.has_option(section, "fios analog"):
fioanalog = parser.getint(section, "fios analog")
if parser.has_option(section, "eios analog"):
eioanalog = parser.getint(section, "eios analog")
if parser.has_option(section, "fios directions"):
fiodirs = parser.getint(section, "fios directions")
if parser.has_option(section, "eios directions"):
eiodirs = parser.getint(section, "eios directions")
if parser.has_option(section, "cios directions"):
ciodirs = parser.getint(section, "cios directions")
if parser.has_option(section, "fios states"):
fiostates = parser.getint(section, "fios states")
if parser.has_option(section, "eios states"):
eiostates = parser.getint(section, "eios states")
if parser.has_option(section, "cios states"):
ciostates = parser.getint(section, "cios states")
self.configIO(FIOAnalog = fioanalog, EIOAnalog = eioanalog)
self.getFeedback( PortStateWrite([fiostates, eiostates, ciostates]), PortDirWrite([fiodirs, eiodirs, ciodirs]) )
# Set DACs:
section = "DACs"
if parser.has_section(section):
if parser.has_option(section, "dac0"):
self.writeRegister(5000, parser.getfloat(section, "dac0"))
if parser.has_option(section, "dac1"):
self.writeRegister(5002, parser.getfloat(section, "dac1"))
# Set Timer Clock Configuration
section = "Timer Clock Speed Configuration"
if parser.has_section(section):
if parser.has_option(section, "timerclockbase") and parser.has_option(section, "timerclockdivisor"):
self.configTimerClock(TimerClockBase = parser.getint(section, "timerclockbase"), TimerClockDivisor = parser.getint(section, "timerclockdivisor"))
# Set Timers / Counters
section = "Timers And Counters"
if parser.has_section(section):
nte = None
c0e = None
c1e = None
cpo = None
if parser.has_option(section, "NumberTimersEnabled"):
nte = parser.getint(section, "NumberTimersEnabled")
if parser.has_option(section, "TimerCounterPinOffset"):
cpo = parser.getint(section, "TimerCounterPinOffset")
if parser.has_option(section, "Counter0Enabled"):
c0e = parser.getboolean(section, "Counter0Enabled")
if parser.has_option(section, "Counter1Enabled"):
c1e = parser.getboolean(section, "Counter1Enabled")
self.configIO(NumberOfTimersEnabled = nte, EnableCounter1 = c1e, EnableCounter0 = c0e, TimerCounterPinOffset = cpo)
mode = None
value = None
if parser.has_option(section, "timer0 mode"):
mode = parser.getint(section, "timer0 mode")
if parser.has_option(section, "timer0 value"):
value = parser.getint(section, "timer0 value")
self.getFeedback( Timer0Config(mode, value) )
if parser.has_option(section, "timer1 mode"):
mode = parser.getint(section, "timer1 mode")
if parser.has_option(section, "timer1 value"):
value = parser.getint(section, "timer1 value")
self.getFeedback( Timer1Config(mode, value) )
loadConfig.section = 3
class FeedbackCommand(object):
"""
The FeedbackCommand class is the base for all the Feedback commands.
"""
readLen = 0
def handle(self, input):
return None
class AIN(FeedbackCommand):
'''
Analog Input Feedback command
specify the positive and negative channels to use
(0-16, 30 and 31 are possible)
also specify whether to turn on longSettle or quick Sample
returns 16-bit signed int sample
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.AIN(PositiveChannel = 0, NegativeChannel=31, LongSettling=False, QuickSample=False))
Sent: [0x1b, 0xf8, 0x2, 0x0, 0x20, 0x0, 0x0, 0x1, 0x0, 0x1f]
Response: [0xab, 0xf8, 0x3, 0x0, 0xaf, 0x0, 0x0, 0x0, 0x0, 0x20, 0x8f, 0x0]
[36640]
'''
def __init__(self, PositiveChannel, NegativeChannel=31,
LongSettling=False, QuickSample=False):
self.positiveChannel = PositiveChannel
self.negativeChannel = NegativeChannel
self.longSettling = LongSettling
self.quickSample = QuickSample
validChannels = range(16) + [30, 31]
if PositiveChannel not in validChannels:
raise Exception("Invalid Positive Channel specified")
if NegativeChannel not in validChannels:
raise Exception("Invalid Negative Channel specified")
b = PositiveChannel
b |= (int(bool(LongSettling)) << 6)
b |= (int(bool(QuickSample)) << 7)
self.cmdBytes = [ 0x01, b, NegativeChannel ]
readLen = 2
def __repr__(self):
return "<u3.AIN( PositiveChannel = %s, NegativeChannel = %s, LongSettling = %s, QuickSample = %s )>" % ( self.positiveChannel, self.negativeChannel, self.longSettling, self.quickSample )
def handle(self, input):
result = (input[1] << 8) + input[0]
return result
class WaitShort(FeedbackCommand):
'''
WaitShort Feedback command
specify the number of 128us time increments to wait
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.WaitShort(Time = 9))
Sent: [0x9, 0xf8, 0x2, 0x0, 0xe, 0x0, 0x0, 0x5, 0x9, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
'''
def __init__(self, Time):
self.time = Time % 256
self.cmdBytes = [ 5, Time % 256 ]
def __repr__(self):
return "<u3.WaitShort( Time = %s )>" % self.time
class WaitLong(FeedbackCommand):
'''
WaitLong Feedback command
specify the number of 32ms time increments to wait
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.WaitLong(Time = 70))
Sent: [0x47, 0xf8, 0x2, 0x0, 0x4c, 0x0, 0x0, 0x6, 0x46, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
'''
def __init__(self, Time):
self.time = Time % 256
self.cmdBytes = [ 6, Time % 256 ]
def __repr__(self):
return "<u3.WaitLong( Time = %s )>" % self.time
class LED(FeedbackCommand):
'''
LED Toggle
specify whether the LED should be on or off by truth value
1 or True = On, 0 or False = Off
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.LED(State = False))
Sent: [0x4, 0xf8, 0x2, 0x0, 0x9, 0x0, 0x0, 0x9, 0x0, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
>>> d.getFeedback(u3.LED(State = True))
Sent: [0x5, 0xf8, 0x2, 0x0, 0xa, 0x0, 0x0, 0x9, 0x1, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
'''
def __init__(self, State):
self.state = State
self.cmdBytes = [ 9, int(bool(State)) ]
def __repr__(self):
return "<u3.LED( State = %s )>" % self.state
class BitStateRead(FeedbackCommand):
'''
BitStateRead Feedback command
read the state of a single bit of digital I/O. Only digital
lines return valid readings.
IONumber: 0-7=FIO, 8-15=EIO, 16-19=CIO
return 0 or 1
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.BitStateRead(IONumber = 5))
Sent: [0xa, 0xf8, 0x2, 0x0, 0xf, 0x0, 0x0, 0xa, 0x5, 0x0]
Response: [0xfb, 0xf8, 0x2, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1]
[1]
'''
def __init__(self, IONumber):
self.ioNumber = IONumber
self.cmdBytes = [ 10, IONumber % 20 ]
readLen = 1
def __repr__(self):
return "<u3.BitStateRead( IONumber = %s )>" % self.ioNumber
def handle(self, input):
return int(bool(input[0]))
class BitStateWrite(FeedbackCommand):
'''
BitStateWrite Feedback command
write a single bit of digital I/O. The direction of the
specified line is forced to output.
IONumber: 0-7=FIO, 8-15=EIO, 16-19=CIO
State: 0 or 1
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.BitStateWrite(IONumber = 5, State = 0))
Sent: [0xb, 0xf8, 0x2, 0x0, 0x10, 0x0, 0x0, 0xb, 0x5, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
'''
def __init__(self, IONumber, State):
self.ioNumber = IONumber
self.state = State
self.cmdBytes = [ 11, (IONumber % 20) + (int(bool(State)) << 7) ]
def __repr__(self):
return "<u3.BitStateWrite( IONumber = %s, State = %s )>" % (self.ioNumber, self.state)
class BitDirRead(FeedbackCommand):
'''
Read the digital direction of one I/O
IONumber: 0-7=FIO, 8-15=EIO, 16-19=CIO
returns 1 = Output, 0 = Input
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.BitDirRead(IONumber = 5))
Sent: [0xc, 0xf8, 0x2, 0x0, 0x11, 0x0, 0x0, 0xc, 0x5, 0x0]
Response: [0xfb, 0xf8, 0x2, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1]
[1]
'''
def __init__(self, IONumber):
self.ioNumber = IONumber
self.cmdBytes = [ 12, IONumber % 20 ]
readLen = 1
def __repr__(self):
return "<u3.BitDirRead( IONumber = %s )>" % self.ioNumber
def handle(self, input):
return int(bool(input[0]))
class BitDirWrite(FeedbackCommand):
'''
BitDirWrite Feedback command
Set the digital direction of one I/O
IONumber: 0-7=FIO, 8-15=EIO, 16-19=CIO
Direction: 1 = Output, 0 = Input
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.BitDirWrite(IONumber = 5, Direction = 0))
Sent: [0xd, 0xf8, 0x2, 0x0, 0x12, 0x0, 0x0, 0xd, 0x5, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
'''
def __init__(self, IONumber, Direction):
self.ioNumber = IONumber
self.direction = Direction
self.cmdBytes = [ 13, (IONumber % 20) + (int(bool(Direction)) << 7) ]
def __repr__(self):
return "<u3.BitDirWrite( IONumber = %s, Direction = %s )>" % (self.ioNumber, self.direction)
class PortStateRead(FeedbackCommand):
"""
PortStateRead Feedback command
Reads the state of all digital I/O.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.PortStateRead())
Sent: [0x14, 0xf8, 0x1, 0x0, 0x1a, 0x0, 0x0, 0x1a]
Response: [0xeb, 0xf8, 0x3, 0x0, 0xee, 0x1, 0x0, 0x0, 0x0, 0xe0, 0xff, 0xf]
[{'CIO': 15, 'FIO': 224, 'EIO': 255}]
"""
def __init__(self):
self.cmdBytes = [ 26 ]
readLen = 3
def handle(self, input):
return {'FIO' : input[0], 'EIO' : input[1], 'CIO' : input[2] }
def __repr__(self):
return "<u3.PortStateRead()>"
class PortStateWrite(FeedbackCommand):
"""
PortStateWrite Feedback command
State: A list of 3 bytes representing FIO, EIO, CIO
WriteMask: A list of 3 bytes, representing which to update.
The Default is all ones.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.PortStateWrite(State = [0xab, 0xcd, 0xef], WriteMask = [0xff, 0xff, 0xff]))
Sent: [0x81, 0xf8, 0x4, 0x0, 0x7f, 0x5, 0x0, 0x1b, 0xff, 0xff, 0xff, 0xab, 0xcd, 0xef]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
"""
def __init__(self, State, WriteMask = [0xff, 0xff, 0xff]):
self.state = State
self.writeMask = WriteMask
self.cmdBytes = [ 27 ] + WriteMask + State
def __repr__(self):
return "<u3.PortStateWrite( State = %s, WriteMask = %s )>" % (self.state, self.writeMask)
class PortDirRead(FeedbackCommand):
"""
PortDirRead Feedback command
Reads the direction of all digital I/O.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.PortDirRead())
Sent: [0x16, 0xf8, 0x1, 0x0, 0x1c, 0x0, 0x0, 0x1c]
Response: [0xfb, 0xf8, 0x3, 0x0, 0xfe, 0x1, 0x0, 0x0, 0x0, 0xf0, 0xff, 0xf]
[{'CIO': 15, 'FIO': 240, 'EIO': 255}]
"""
def __init__(self):
self.cmdBytes = [ 28 ]
readLen = 3
def __repr__(self):
return "<u3.PortDirRead()>"
def handle(self, input):
return {'FIO' : input[0], 'EIO' : input[1], 'CIO' : input[2] }
class PortDirWrite(FeedbackCommand):
"""
PortDirWrite Feedback command
Direction: A list of 3 bytes representing FIO, EIO, CIO
WriteMask: A list of 3 bytes, representing which to update. Default is all ones.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.PortDirWrite(Direction = [0xaa, 0xcc, 0xff], WriteMask = [0xff, 0xff, 0xff]))
Sent: [0x91, 0xf8, 0x4, 0x0, 0x8f, 0x5, 0x0, 0x1d, 0xff, 0xff, 0xff, 0xaa, 0xcc, 0xff]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
"""
def __init__(self, Direction, WriteMask = [ 0xff, 0xff, 0xff]):
self.direction = Direction
self.writeMask = WriteMask
self.cmdBytes = [ 29 ] + WriteMask + Direction
def __repr__(self):
return "<u3.PortDirWrite( Direction = %s, WriteMask = %s )>" % (self.direction, self.writeMask)
class DAC8(FeedbackCommand):
'''
8-bit DAC Feedback command
Controls a single analog output
Dac: 0 or 1
Value: 0-255
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.DAC8(Dac = 0, Value = 0x55))
Sent: [0x72, 0xf8, 0x2, 0x0, 0x77, 0x0, 0x0, 0x22, 0x55, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
'''
def __init__(self, Dac, Value):
self.dac = Dac
self.value = Value % 256
self.cmdBytes = [ 34 + (Dac % 2), Value % 256 ]
def __repr__(self):
return "<u3.DAC8( Dac = %s, Value = %s )>" % (self.dac, self.value)
class DAC0_8(DAC8):
"""
8-bit DAC Feedback command for DAC0
Controls DAC0 in 8-bit mode.
Value: 0-255
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.DAC0_8(Value = 0x33))
Sent: [0x50, 0xf8, 0x2, 0x0, 0x55, 0x0, 0x0, 0x22, 0x33, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
"""
def __init__(self, Value):
DAC8.__init__(self, 0, Value)
def __repr__(self):
return "<u3.DAC0_8( Value = %s )>" % self.value
class DAC1_8(DAC8):
"""
8-bit DAC Feedback command for DAC1
Controls DAC1 in 8-bit mode.
Value: 0-255
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.DAC1_8(Value = 0x22))
Sent: [0x40, 0xf8, 0x2, 0x0, 0x45, 0x0, 0x0, 0x23, 0x22, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
"""
def __init__(self, Value):
DAC8.__init__(self, 1, Value)
def __repr__(self):
return "<u3.DAC1_8( Value = %s )>" % self.value
class DAC16(FeedbackCommand):
'''
16-bit DAC Feedback command
Controls a single analog output
Dac: 0 or 1
Value: 0-65535
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.DAC16(Dac = 0, Value = 0x5566))
Sent: [0xdc, 0xf8, 0x2, 0x0, 0xe1, 0x0, 0x0, 0x26, 0x66, 0x55]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
'''
def __init__(self, Dac, Value):
self.dac = Dac
self.value = Value
self.cmdBytes = [ 38 + (Dac % 2), Value % 256, Value >> 8 ]
def __repr__(self):
return "<u3.DAC16( Dac = %s, Value = %s )>" % (self.dac, self.value)
class DAC0_16(DAC16):
"""
16-bit DAC Feedback command for DAC0
Controls DAC0 in 16-bit mode.
Value: 0-65535
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.DAC0_16(Value = 0x1122))
Sent: [0x54, 0xf8, 0x2, 0x0, 0x59, 0x0, 0x0, 0x26, 0x22, 0x11]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
"""
def __init__(self, Value):
DAC16.__init__(self, 0, Value)
def __repr__(self):
return "<u3.DAC0_16( Value = %s )>" % self.value
class DAC1_16(DAC16):
"""
16-bit DAC Feedback command for DAC1
Controls DAC1 in 16-bit mode.
Value: 0-65535
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.getFeedback(u3.DAC1_16(Value = 0x2233))
Sent: [0x77, 0xf8, 0x2, 0x0, 0x7c, 0x0, 0x0, 0x27, 0x33, 0x22]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
"""
def __init__(self, Value):
DAC16.__init__(self, 1, Value)
def __repr__(self):
return "<u3.DAC1_16( Value = %s )>" % self.value
class Timer(FeedbackCommand):
"""
For reading the value of the Timer. It provides the ability to update/reset
a given timer, and read the timer value.
(Section 5.2.5.14 of the User's Guide)
timer: Either 0 or 1 for timer 0 or timer 1
UpdateReset: Set True if you want to update the value
Value: Only updated if the UpdateReset bit is 1. The meaning of this
parameter varies with the timer mode.
Mode: Set to the timer mode to handle any special processing. See classes
QuadratureInputTimer and TimerStopInput1.
Returns an unsigned integer of the timer value, unless Mode has been
specified and there are special return values. See Section 2.9.1 for
expected return values.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.configIO(NumberOfTimersEnabled = 1)
Sent: [0x49, 0xf8, 0x3, 0xb, 0x42, 0x0, 0x1, 0x0, 0x41, 0x0, 0x0, 0x0]
Response: [0x57, 0xf8, 0x3, 0xb, 0x50, 0x0, 0x0, 0x0, 0x41, 0x0, 0xf, 0x0]
{'NumberOfTimersEnabled': 1, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 15, 'EIOAnalog': 0, 'TimerCounterConfig': 65, 'EnableCounter1': False, 'EnableCounter0': False}
>>> d.getFeedback(u3.Timer(timer = 0, UpdateReset = False, Value = 0, Mode = None))
Sent: [0x26, 0xf8, 0x3, 0x0, 0x2a, 0x0, 0x0, 0x2a, 0x0, 0x0, 0x0, 0x0]
Response: [0xfc, 0xf8, 0x4, 0x0, 0xfe, 0x1, 0x0, 0x0, 0x0, 0x63, 0xdd, 0x4c, 0x72, 0x0]
[1917640035]
"""
def __init__(self, timer, UpdateReset = False, Value=0, Mode = None):
self.timer = timer
self.updateReset = UpdateReset
self.value = Value
self.mode = Mode
if timer != 0 and timer != 1:
raise LabJackException("Timer should be either 0 or 1.")
if UpdateReset and Value == None:
raise LabJackException("UpdateReset set but no value.")
self.cmdBytes = [ (42 + (2*timer)), UpdateReset, Value % 256, Value >> 8 ]
readLen = 4
def __repr__(self):
return "<u3.Timer( timer = %s, UpdateReset = %s, Value = %s, Mode = %s )>" % (self.timer, self.updateReset, self.value, self.mode)
def handle(self, input):
inStr = struct.pack('B' * len(input), *input)
if self.mode == 8:
return struct.unpack('<i', inStr )[0]
elif self.mode == 9:
maxCount, current = struct.unpack('<HH', inStr )
return current, maxCount
else:
return struct.unpack('<I', inStr )[0]
class Timer0(Timer):
"""
For reading the value of the Timer0. It provides the ability to
update/reset Timer0, and read the timer value.
(Section 5.2.5.14 of the User's Guide)
UpdateReset: Set True if you want to update the value
Value: Only updated if the UpdateReset bit is 1. The meaning of this
parameter varies with the timer mode.
Mode: Set to the timer mode to handle any special processing. See classes
QuadratureInputTimer and TimerStopInput1.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.configIO(NumberOfTimersEnabled = 1)
Sent: [0x49, 0xf8, 0x3, 0xb, 0x42, 0x0, 0x1, 0x0, 0x41, 0x0, 0x0, 0x0]
Response: [0x57, 0xf8, 0x3, 0xb, 0x50, 0x0, 0x0, 0x0, 0x41, 0x0, 0xf, 0x0]
{'NumberOfTimersEnabled': 1, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 15, 'EIOAnalog': 0, 'TimerCounterConfig': 65, 'EnableCounter1': False, 'EnableCounter0': False}
>>> d.getFeedback(u3.Timer0(UpdateReset = False, Value = 0, Mode = None))
Sent: [0x26, 0xf8, 0x3, 0x0, 0x2a, 0x0, 0x0, 0x2a, 0x0, 0x0, 0x0, 0x0]
Response: [0x51, 0xf8, 0x4, 0x0, 0x52, 0x2, 0x0, 0x0, 0x0, 0xf6, 0x90, 0x46, 0x86, 0x0]
[2252771574]
"""
def __init__(self, UpdateReset = False, Value = 0, Mode = None):
Timer.__init__(self, 0, UpdateReset, Value, Mode)
def __repr__(self):
return "<u3.Timer0( UpdateReset = %s, Value = %s, Mode = %s )>" % (self.updateReset, self.value, self.mode)
class Timer1(Timer):
"""
For reading the value of the Timer1. It provides the ability to
update/reset Timer1, and read the timer value.
(Section 5.2.5.14 of the User's Guide)
UpdateReset: Set True if you want to update the value
Value: Only updated if the UpdateReset bit is 1. The meaning of this
parameter varies with the timer mode.
Mode: Set to the timer mode to handle any special processing. See classes
QuadratureInputTimer and TimerStopInput1.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.configIO(NumberOfTimersEnabled = 2)
Sent: [0x4a, 0xf8, 0x3, 0xb, 0x43, 0x0, 0x1, 0x0, 0x42, 0x0, 0x0, 0x0]
Response: [0x58, 0xf8, 0x3, 0xb, 0x51, 0x0, 0x0, 0x0, 0x42, 0x0, 0xf, 0x0]
{'NumberOfTimersEnabled': 2, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 15, 'EIOAnalog': 0, 'TimerCounterConfig': 66, 'EnableCounter1': False, 'EnableCounter0': False}
>>> d.getFeedback(u3.Timer1(UpdateReset = False, Value = 0, Mode = None))
Sent: [0x28, 0xf8, 0x3, 0x0, 0x2c, 0x0, 0x0, 0x2c, 0x0, 0x0, 0x0, 0x0]
Response: [0x8d, 0xf8, 0x4, 0x0, 0x8e, 0x2, 0x0, 0x0, 0x0, 0xf3, 0x31, 0xd0, 0x9a, 0x0]
[2597335539]
"""
def __init__(self, UpdateReset = False, Value = 0, Mode = None):
Timer.__init__(self, 1, UpdateReset, Value, Mode)
def __repr__(self):
return "<u3.Timer1( UpdateReset = %s, Value = %s, Mode = %s )>" % (self.updateReset, self.value, self.mode)
class QuadratureInputTimer(Timer):
"""
For reading Quadrature input timers. They are special because their values
are signed.
(Section 2.9.1.8 of the User's Guide)
Args:
UpdateReset: Set True if you want to reset the counter.
Value: Set to 0, and UpdateReset to True to reset the counter.
Returns a signed integer.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.configIO(NumberOfTimersEnabled = 2)
Sent: [0x4a, 0xf8, 0x3, 0xb, 0x43, 0x0, 0x1, 0x0, 0x42, 0x0, 0x0, 0x0]
Response: [0x58, 0xf8, 0x3, 0xb, 0x51, 0x0, 0x0, 0x0, 0x42, 0x0, 0xf, 0x0]
{'NumberOfTimersEnabled': 2, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 15, 'EIOAnalog': 0, 'TimerCounterConfig': 66, 'EnableCounter1': False, 'EnableCounter0': False}
>>> # Setup the two timers to be quadrature
>>> d.getFeedback(u3.Timer0Config(8), u3.Timer1Config(8))
Sent: [0x66, 0xf8, 0x5, 0x0, 0x68, 0x0, 0x0, 0x2b, 0x8, 0x0, 0x0, 0x2d, 0x8, 0x0, 0x0, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None, None]
>>> # Read the value
[0]
>>> d.getFeedback(u3.QuadratureInputTimer())
Sent: [0x26, 0xf8, 0x3, 0x0, 0x2a, 0x0, 0x0, 0x2a, 0x0, 0x0, 0x0, 0x0]
Response: [0xf5, 0xf8, 0x4, 0x0, 0xf5, 0x3, 0x0, 0x0, 0x0, 0xf8, 0xff, 0xff, 0xff, 0x0]
[-8]
>>> d.getFeedback(u3.QuadratureInputTimer())
Sent: [0x26, 0xf8, 0x3, 0x0, 0x2a, 0x0, 0x0, 0x2a, 0x0, 0x0, 0x0, 0x0]
Response: [0x9, 0xf8, 0x4, 0x0, 0xc, 0x0, 0x0, 0x0, 0x0, 0xc, 0x0, 0x0, 0x0, 0x0]
[12]
"""
def __init__(self, UpdateReset = False, Value = 0):
Timer.__init__(self, 0, UpdateReset, Value, Mode = 8)
def __repr__(self):
return "<u3.QuadratureInputTimer( UpdateReset = %s, Value = %s )>" % (self.updateReset, self.value)
class TimerStopInput1(Timer1):
"""
For reading a stop input timer. They are special because the value returns
the current edge count and the stop value.
(Section 2.9.1.9 of the User's Guide)
Args:
UpdateReset: Set True if you want to update the value.
Value: The stop value. Only updated if the UpdateReset bit is 1.
Returns a tuple where the first value is current edge count, and the second
value is the stop value.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.configIO(NumberOfTimersEnabled = 2)
Sent: [0x4a, 0xf8, 0x3, 0xb, 0x43, 0x0, 0x1, 0x0, 0x42, 0x0, 0x0, 0x0]
Response: [0x58, 0xf8, 0x3, 0xb, 0x51, 0x0, 0x0, 0x0, 0x42, 0x0, 0xf, 0x0]
{'NumberOfTimersEnabled': 2, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 15, 'EIOAnalog': 0, 'TimerCounterConfig': 66, 'EnableCounter1': False, 'EnableCounter0': False}
>>> # Setup the timer to be Stop Input
>>> d.getFeedback(u3.Timer1Config(9, Value = 30))
Sent: [0x50, 0xf8, 0x3, 0x0, 0x54, 0x0, 0x0, 0x2d, 0x9, 0x1e, 0x0, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
>>> d.getFeedback(u3.TimerStopInput1())
Sent: [0x28, 0xf8, 0x3, 0x0, 0x2c, 0x0, 0x0, 0x2c, 0x0, 0x0, 0x0, 0x0]
Response: [0x1b, 0xf8, 0x4, 0x0, 0x1e, 0x0, 0x0, 0x0, 0x0, 0x1e, 0x0, 0x0, 0x0, 0x0]
[(0, 0)]
"""
def __init__(self, UpdateReset = False, Value = 0):
Timer.__init__(self, 1, UpdateReset, Value, Mode = 9)
def __repr__(self):
return "<u3.TimerStopInput1( UpdateReset = %s, Value = %s )>" % (self.updateReset, self.value)
class TimerConfig(FeedbackCommand):
"""
This IOType configures a particular timer.
timer = # of the timer to configure
TimerMode = See Section 2.9 for more information about the available modes.
Value = The meaning of this parameter varies with the timer mode.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.configIO(NumberOfTimersEnabled = 1)
Sent: [0x49, 0xf8, 0x3, 0xb, 0x42, 0x0, 0x1, 0x0, 0x41, 0x0, 0x0, 0x0]
Response: [0x57, 0xf8, 0x3, 0xb, 0x50, 0x0, 0x0, 0x0, 0x41, 0x0, 0xf, 0x0]
{'NumberOfTimersEnabled': 1, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 15, 'EIOAnalog': 0, 'TimerCounterConfig': 65, 'EnableCounter1': False, 'EnableCounter0': False}
>>> d.getFeedback(u3.TimerConfig(timer = 0, TimerMode = 0, Value = 0))
Sent: [0x27, 0xf8, 0x3, 0x0, 0x2b, 0x0, 0x0, 0x2b, 0x0, 0x0, 0x0, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
>>> d.getFeedback(u3.TimerConfig(timer = 0, TimerMode = 0, Value = 65535))
Sent: [0x27, 0xf8, 0x3, 0x0, 0x29, 0x2, 0x0, 0x2b, 0x0, 0xff, 0xff, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
"""
def __init__(self, timer, TimerMode, Value=0):
'''Creates command bytes for configureing a Timer'''
#Conditions come from pages 33-34 of user's guide
if timer != 0 and timer != 1:
raise LabJackException("Timer should be either 0 or 1.")
if TimerMode > 14 or TimerMode < 0:
raise LabJackException("Invalid Timer Mode.")
self.timer = timer
self.timerMode = TimerMode
self.value = Value
self.cmdBytes = [43 + (timer * 2), TimerMode, Value % 256, Value >> 8]
def __repr__(self):
return "<u3.TimerConfig( timer = %s, TimerMode = %s, Value = %s )>" % (self.timer, self.timerMode, self.value)
class Timer0Config(TimerConfig):
"""
This IOType configures Timer0.
TimerMode = See Section 2.9 for more information about the available modes.
Value = The meaning of this parameter varies with the timer mode.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.configIO(NumberOfTimersEnabled = 1)
Sent: [0x49, 0xf8, 0x3, 0xb, 0x42, 0x0, 0x1, 0x0, 0x41, 0x0, 0x0, 0x0]
Response: [0x57, 0xf8, 0x3, 0xb, 0x50, 0x0, 0x0, 0x0, 0x41, 0x0, 0xf, 0x0]
{'NumberOfTimersEnabled': 1, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 15, 'EIOAnalog': 0, 'TimerCounterConfig': 65, 'EnableCounter1': False, 'EnableCounter0': False}
>>> d.getFeedback(u3.Timer0Config(TimerMode = 1, Value = 0))
Sent: [0x28, 0xf8, 0x3, 0x0, 0x2c, 0x0, 0x0, 0x2b, 0x1, 0x0, 0x0, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
>>> d.getFeedback(u3.Timer0Config(TimerMode = 1, Value = 65535))
Sent: [0x28, 0xf8, 0x3, 0x0, 0x2a, 0x2, 0x0, 0x2b, 0x1, 0xff, 0xff, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
"""
def __init__(self, TimerMode, Value = 0):
TimerConfig.__init__(self, 0, TimerMode, Value)
def __repr__(self):
return "<u3.Timer0Config( TimerMode = %s, Value = %s )>" % (self.timerMode, self.value)
class Timer1Config(TimerConfig):
"""
This IOType configures Timer1.
TimerMode = See Section 2.9 for more information about the available modes.
Value = The meaning of this parameter varies with the timer mode.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.configIO(NumberOfTimersEnabled = 2)
Sent: [0x4a, 0xf8, 0x3, 0xb, 0x43, 0x0, 0x1, 0x0, 0x42, 0x0, 0x0, 0x0]
Response: [0x58, 0xf8, 0x3, 0xb, 0x51, 0x0, 0x0, 0x0, 0x42, 0x0, 0xf, 0x0]
{'NumberOfTimersEnabled': 2, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 15, 'EIOAnalog': 0, 'TimerCounterConfig': 66, 'EnableCounter1': False, 'EnableCounter0': False}
>>> d.getFeedback(u3.Timer1Config(TimerMode = 6, Value = 1))
Sent: [0x30, 0xf8, 0x3, 0x0, 0x34, 0x0, 0x0, 0x2d, 0x6, 0x1, 0x0, 0x0]
Response: [0xfa, 0xf8, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[None]
"""
def __init__(self, TimerMode, Value = 0):
TimerConfig.__init__(self, 1, TimerMode, Value)
def __repr__(self):
return "<u3.Timer1Config( TimerMode = %s, Value = %s )>" % (self.timerMode, self.value)
class Counter(FeedbackCommand):
'''
Counter Feedback command
Reads a hardware counter, optionally resetting it
counter: 0 or 1
Reset: True ( or 1 ) = Reset, False ( or 0 ) = Don't Reset
Returns the current count from the counter if enabled. If reset,
this is the value before the reset.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.configIO(EnableCounter0 = True, FIOAnalog = 15)
Sent: [0x5f, 0xf8, 0x3, 0xb, 0x58, 0x0, 0x5, 0x0, 0x44, 0x0, 0xf, 0x0]
Response: [0x5a, 0xf8, 0x3, 0xb, 0x53, 0x0, 0x0, 0x0, 0x44, 0x0, 0xf, 0x0]
{'NumberOfTimersEnabled': 0, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 15, 'EIOAnalog': 0, 'TimerCounterConfig': 68, 'EnableCounter1': False, 'EnableCounter0': True}
>>> d.getFeedback(u3.Counter(counter = 0, Reset = False))
Sent: [0x31, 0xf8, 0x2, 0x0, 0x36, 0x0, 0x0, 0x36, 0x0, 0x0]
Response: [0xfc, 0xf8, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[0]
>>> # Tap a ground wire to counter 0
>>> d.getFeedback(u3.Counter(counter = 0, Reset = False))
Sent: [0x31, 0xf8, 0x2, 0x0, 0x36, 0x0, 0x0, 0x36, 0x0, 0x0]
Response: [0xe9, 0xf8, 0x4, 0x0, 0xec, 0x0, 0x0, 0x0, 0x0, 0xe8, 0x4, 0x0, 0x0, 0x0]
[1256]
'''
def __init__(self, counter, Reset = False):
self.counter = counter
self.reset = Reset
self.cmdBytes = [ 54 + (counter % 2), int(bool(Reset))]
readLen = 4
def __repr__(self):
return "<u3.Counter( counter = %s, Reset = %s )>" % (self.counter, self.reset)
def handle(self, input):
inStr = ''.join([chr(x) for x in input])
return struct.unpack('<I', inStr )[0]
class Counter0(Counter):
'''
Counter0 Feedback command
Reads hardware counter0, optionally resetting it
Reset: True ( or 1 ) = Reset, False ( or 0 ) = Don't Reset
Returns the current count from the counter if enabled. If reset,
this is the value before the reset.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.configIO(EnableCounter0 = True, FIOAnalog = 15)
Sent: [0x5f, 0xf8, 0x3, 0xb, 0x58, 0x0, 0x5, 0x0, 0x44, 0x0, 0xf, 0x0]
Response: [0x5a, 0xf8, 0x3, 0xb, 0x53, 0x0, 0x0, 0x0, 0x44, 0x0, 0xf, 0x0]
{'NumberOfTimersEnabled': 0, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 15, 'EIOAnalog': 0, 'TimerCounterConfig': 68, 'EnableCounter1': False, 'EnableCounter0': True}
>>> d.getFeedback(u3.Counter0( Reset = False ) )
Sent: [0x31, 0xf8, 0x2, 0x0, 0x36, 0x0, 0x0, 0x36, 0x0, 0x0]
Response: [0xfc, 0xf8, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[0]
>>> # Tap a ground wire to counter 0
>>> d.getFeedback(u3.Counter0(Reset = False))
Sent: [0x31, 0xf8, 0x2, 0x0, 0x36, 0x0, 0x0, 0x36, 0x0, 0x0]
Response: [0xe, 0xf8, 0x4, 0x0, 0x11, 0x0, 0x0, 0x0, 0x0, 0x11, 0x0, 0x0, 0x0, 0x0]
[17]
>>> # Tap a ground wire to counter 0
>>> d.getFeedback(u3.Counter0(Reset = False))
Sent: [0x31, 0xf8, 0x2, 0x0, 0x36, 0x0, 0x0, 0x36, 0x0, 0x0]
Response: [0x19, 0xf8, 0x4, 0x0, 0x1c, 0x0, 0x0, 0x0, 0x0, 0xb, 0x11, 0x0, 0x0, 0x0]
[4363]
'''
def __init__(self, Reset = False):
Counter.__init__(self, 0, Reset)
def __repr__(self):
return "<u3.Counter0( Reset = %s )>" % self.reset
class Counter1(Counter):
'''
Counter1 Feedback command
Reads hardware counter1, optionally resetting it
Reset: True ( or 1 ) = Reset, False ( or 0 ) = Don't Reset
Returns the current count from the counter if enabled. If reset,
this is the value before the reset.
>>> import u3
>>> d = u3.U3()
>>> d.debug = True
>>> d.configIO(EnableCounter1 = True, FIOAnalog = 15)
Sent: [0x63, 0xf8, 0x3, 0xb, 0x5c, 0x0, 0x5, 0x0, 0x48, 0x0, 0xf, 0x0]
Response: [0x5e, 0xf8, 0x3, 0xb, 0x57, 0x0, 0x0, 0x0, 0x48, 0x0, 0xf, 0x0]
{'NumberOfTimersEnabled': 0, 'TimerCounterPinOffset': 4, 'DAC1Enable': 0, 'FIOAnalog': 15, 'EIOAnalog': 0, 'TimerCounterConfig': 72, 'EnableCounter1': True, 'EnableCounter0': False}
>>> d.getFeedback(u3.Counter1(Reset = False))
Sent: [0x32, 0xf8, 0x2, 0x0, 0x37, 0x0, 0x0, 0x37, 0x0, 0x0]
Response: [0xfc, 0xf8, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]
[0]
>>> # Tap a ground wire to counter 1
>>> d.getFeedback(u3.Counter1(Reset = False))
Sent: [0x32, 0xf8, 0x2, 0x0, 0x37, 0x0, 0x0, 0x37, 0x0, 0x0]
Response: [0xfd, 0xf8, 0x4, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0]
[1]
>>> # Tap a ground wire to counter 1
>>> d.getFeedback(u3.Counter1(Reset = False))
Sent: [0x32, 0xf8, 0x2, 0x0, 0x37, 0x0, 0x0, 0x37, 0x0, 0x0]
Response: [0xb4, 0xf8, 0x4, 0x0, 0xb7, 0x0, 0x0, 0x0, 0x0, 0x6b, 0x2b, 0x21, 0x0, 0x0]
[2173803]
'''
def __init__(self, Reset = False):
Counter.__init__(self, 1, Reset)
def __repr__(self):
return "<u3.Counter0( Reset = %s )>" % self.reset
@bglusman
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Goal is to hack u3 labjack driver into a mock object so labjack code can be tested without labjack present

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