draft of labjack_ue9 driver

2 files changed, 74 insertions, 0 deletions

diff --git a/qolab/hardware/daq/__init__.py b/qolab/hardware/daq/__init__.py
new file mode 100644
index 0000000..8828591
--- /dev/null
+++ b/qolab/hardware/daq/__init__.py
@@ -0,0 +1,15 @@
+from qolab.hardware.basic import BasicInstrument
+
+class DAQ(BasicInstrument):
+    # Minimal set of methods to be implemented by a RFGenerator
+    def __init__(self, *args, **kwds):
+        BasicInstrument.__init__(self, *args, **kwds)
+        self.config['Device type']='DAQ'
+        self.config['Device model'] = 'Generic DAQ Without Hardware interface'
+        self.config['FnamePrefix'] = 'daq'
+        self.deviceProperties = {'AnalogInputsNum', 'AnalogOutputsNum' }
+        
+        # this is device dependent
+        self.AnalogInputsNum=0
+        self.AnalogOutputsNum=0
+
diff --git a/qolab/hardware/daq/labjack_ue9.py b/qolab/hardware/daq/labjack_ue9.py
new file mode 100644
index 0000000..5b293f4
--- /dev/null
+++ b/qolab/hardware/daq/labjack_ue9.py
@@ -0,0 +1,59 @@
+from qolab.hardware.basic import BasicInstrument
+from qolab.hardware.daq import DAQ
+import ue9
+
+class LabJackUE9(DAQ):
+    """
+    This custom modification of the stock LabJack UE9 class provided by LabJack as ue9
+    """
+
+    def __init__(self, *args, debug = False, autoOpen = True, ethernet=False, ipAddress="192.168.1.209", **kargs):
+        """
+        LabJack UE9 can be contacted via TCP, use
+        QOL_UE9(ethernet=True, ipAddress="192.168.1.209")
+        """
+        super().__init__(*args, **kargs)
+        self.config['Device model'] = 'LabJack UE9'
+        self.AnalogInputsNum=4
+        self.AnalogOutputsNum=2
+
+        # self.daq = ue9.UE9(debug=debug, autoOpen=autoOpen, ethernet=ethernet, ipAddress=ipAddress)
+        self.daq = ue9.UE9(debug=debug, autoOpen=autoOpen)
+
+        # For applying the proper calibration to readings.
+        c=self.daq.getCalibrationData()
+
+        # by evmik
+        # fixing missing slope for gain '0'
+        c['AINSlopes']['0']= 0.0000775030
+
+    def getChanVoltage(self, chNum, BipGain):
+        BipGain = 8
+        # BipGain = 8 -> bipolar range (-5V, +5V) gain 1
+        # UE9 default BipGain = 0 -> signal range (0V, +5V) gain 1
+        # other BipGain could be:
+        #   0 = Unipolar Gain 1, 1 = Unipolar Gain 2,
+        #   2 = Unipolar Gain 4, 3 = Unipolar Gain 8,
+        #   8 = Bipolar Gain 1
+        return self.daq.getAIN(chNum, BipGain = BipGain)
+
+    def setChanVoltage(self, chNum, volts):
+        if chNum == None or volts == None:
+            print("setOutputCh needs chNum and volts to be set")
+            return 0
+        bits = self.daq.voltageToDACBits(volts, dacNumber = chNum)
+        # out is completely bogus for DAC settings in UE9
+        out=self.daq.singleIO(IOType=5, Channel=chNum, DAC=bits)
+        return volts
+
+    def close(self):
+        self.daq.close()
+
+
+
+if __name__ == '__main__': 
+    daq = LabJackUE9()
+    print("testing")
+    print('------ Header start -------------')
+    print(str.join('\n', daq.getHeader()))
+    print('------ Header ends  -------------')