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fio.py
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import u6, u3, ue9
from groundedutils import ANALOG_TYPE, DIGITAL_OUT_TYPE, DIGITAL_IN_TYPE
class UE9FIO(object):
"""
A class to hold help functions for dealing with UE9 inputs/outputs.
"""
@staticmethod
def getBipGain(dev, inputNumber):
ainNumber = inputNumber
ainNumber = ainNumber - (ainNumber % 2)
attrName = "AIN%s_%s_BipGain" % (ainNumber + 1, ainNumber)
print "Computed name =", attrName
currentGain = dev.__getattribute__(attrName)
inputsGain = (currentGain >> (4 * (ainNumber % 2))) & 0xf
return currentGain, attrName, inputsGain
@staticmethod
def setupNewDevice(dev):
# Add feedback options to UE9 object
dev.AIN14ChannelNumber = 0
dev.AIN15ChannelNumber = 0
dev.Resolution = 0
dev.SettlingTime = 0
dev.AIN1_0_BipGain = 0
dev.AIN3_2_BipGain = 0
dev.AIN5_4_BipGain = 0
dev.AIN7_6_BipGain = 0
dev.AIN9_8_BipGain = 0
dev.AIN11_10_BipGain = 0
dev.AIN13_12_BipGain = 0
@staticmethod
def updateFIO(dev, inputConnection):
if inputConnection.fioNumber < 14:
print "Got an update for an AIN"
dev.Resolution = inputConnection.resolutionIndex
dev.SettlingTime = inputConnection.settlingFactor
currentGain, attrName, inputsGain = UE9FIO.getBipGain(dev, inputConnection.fioNumber)
if inputConnection.fioNumber % 2 == 1:
# Replacing the higher nibble
otherGain = currentGain & 0xf
newGain = ((inputConnection.gainIndex & 0xf) << 4) + otherGain
else:
otherGain = (currentGain >> 4) & 0xf
newGain = (otherGain << 4) + (inputConnection.gainIndex & 0xf)
dev.__setattr__(attrName, newGain)
else:
fioNumber = inputConnection.fioNumber - 14
direction = 0 if inputConnection.chType == DIGITAL_IN_TYPE else 1
dev.singleIO(1, fioNumber, Dir = direction, State = inputConnection.state )
@staticmethod
def getFioInfo(dev, inputNumber):
if inputNumber < 14:
currentGain, attrName, inputsGain = UE9FIO.getBipGain(dev, inputNumber)
return { "label" : "AIN%s" % inputNumber, "fioNumber" : inputNumber, "chType" : ANALOG_TYPE, "settlingFactor" : dev.SettlingTime, "resolutionIndex" : dev.Resolution, "gainIndex" : inputsGain}
else:
fioNumber = inputNumber - 14
direction = dev.readRegister(6100 + fioNumber)
direction = DIGITAL_IN_TYPE if direction == 0 else DIGITAL_OUT_TYPE
state = dev.readRegister(6000 + fioNumber)
return { "label" : "FIO%s" % fioNumber, "fioNumber" : inputNumber, "chType" : direction, "state": state }
class FIO(object):
"""
The FIO Class represents a single input. Helps keep track of state.
"""
def __init__(self, fioNumber, label = None , chType = "analogIn", state = None, negChannel = None):
self.fioNumber = fioNumber
self.chType = chType
self.label = None
if negChannel:
self.negChannel = int(negChannel)
else:
self.negChannel = False
self.gainIndex = 0
self.resolutionIndex = 1
self.settlingFactor = 0
if state is not None:
self.state = int(state)
else:
self.state = None
if self.chType == ANALOG_TYPE:
if not self.negChannel:
self.negChannel = 31
self.label = "AIN%s" % self.fioNumber
else:
self.label = "FIO%s" % self.fioNumber
if label != None:
self.label = label
def asDict(self):
""" Returns a dictionary representation of a FIO
"""
return { "fioNumber" : self.fioNumber, "chType" : self.chType, "label" : self.label, "negChannel" : self.negChannel, "state": self.state, 'gainIndex' : self.gainIndex, 'resolutionIndex' : self.resolutionIndex, 'settlingFactor' : self.settlingFactor }
def makeFeedbackCommand(self, dev):
if self.chType == ANALOG_TYPE:
if dev.devType == 3:
nc = self.negChannel
if nc == 32:
nc = 30
return u3.AIN(self.fioNumber, NegativeChannel = nc, LongSettling = self.gainIndex, QuickSample = self.settlingFactor)
elif dev.devType == 6:
diff = False
if self.negChannel != 31:
diff = True
return u6.AIN24(self.fioNumber, ResolutionIndex = self.resolutionIndex, GainIndex = self.gainIndex, Differential = diff)
else:
if dev.devType == 3:
return u3.BitStateRead(self.fioNumber)
elif dev.devType == 6:
return u6.BitStateRead(self.fioNumber)
def transform(self, dev, inputConnection):
""" Converts a FIO to match a given FIO
"""
if inputConnection.chType == ANALOG_TYPE:
self.negChannel = inputConnection.negChannel
self.gainIndex = inputConnection.gainIndex
self.resolutionIndex = inputConnection.resolutionIndex
self.settlingFactor = inputConnection.settlingFactor
self.setSelfToAnalog(dev)
elif inputConnection.chType == DIGITAL_OUT_TYPE:
self.state = inputConnection.state
self.setSelfToDigital(dev, DIGITAL_OUT_TYPE)
else:
self.setSelfToDigital(dev, DIGITAL_IN_TYPE)
def setSelfToDigital(self, dev, chType):
if dev.devType == 6:
fioNumber = self.fioNumber - 14
else:
fioNumber = self.fioNumber
# FIO or EIO
if fioNumber < 16:
if fioNumber < 8:
reg = 50590
self.label = "FIO%s" % fioNumber
else:
reg = 50591
self.label = "EIO%s" % ( fioNumber % 8 )
analog = dev.readRegister(reg)
digitalMask = 0xffff - ( 1 << (fioNumber % 8) )
analog = analog & digitalMask
# Set pin to digital.
dev.writeRegister(reg, analog)
else:
self.label = "CIO%s" % ( fioNumber % 16 )
if chType == DIGITAL_OUT_TYPE:
dev.writeRegister(6100 + fioNumber, 1)
dev.writeRegister(6000 + fioNumber, self.state)
else:
dev.writeRegister(6100 + fioNumber, 0)
print "Setting self to be %s" % chType
self.chType = chType
def setSelfToAnalog(self, dev):
# FIO or EIO
if self.fioNumber < 8:
reg = 50590
else:
reg = 50591
analog = dev.readRegister(reg)
analog |= (1 << (self.fioNumber % 8))
# Set pin to Analog.
dev.writeRegister(reg, analog)
# Set Negative channel.
if self.negChannel == 32:
dev.writeRegister(3000 + self.fioNumber, 30)
else:
dev.writeRegister(3000 + self.fioNumber, self.negChannel)
self.chType = ANALOG_TYPE
self.label = "AIN%s" % ( self.fioNumber )
def readResult(self, dev):
if self.chType == ANALOG_TYPE:
return self.readAin(dev)
else:
return self.readFio(dev)
def readAin(self, dev):
state = dev.getAIN(self.fioNumber, negChannel = self.negChannel)
return self.parseAinResults(state)
def parseAinResults(self, state):
infoDict = dict()
infoDict['connection'] = self.label
infoDict['connectionNumber'] = self.fioNumber
# Should use FLOAT_FORMAT
infoDict['state'] = "%0.3f" % state
infoDict['value'] = "%0.3f" % state # Use state for 'state' and 'value'
infoDict['chType'] = self.chType
return infoDict
def readFio(self, dev):
fioDir = dev.readRegister(6100 + self.fioNumber)
fioState = dev.readRegister(6000 + self.fioNumber)
return self.parseFioResults(fioDir, fioState)
def parseFioResults(self, fioDir, fioState):
if fioDir == 0:
fioDirText = "Input"
else:
fioDirText = "Output"
if fioState == 0:
fioStateText = "Low"
else:
fioStateText = "High"
infoDict = {'connection' : self.label, 'state' : "%s %s" % (fioDirText, fioStateText), 'value' : "%s" % fioState}
infoDict['connectionNumber'] = self.fioNumber
infoDict['chType'] = (DIGITAL_IN_TYPE if fioDir == 0 else DIGITAL_OUT_TYPE)
return infoDict