From bf375142e009aaaa7a517b67e5842d493ae0206a Mon Sep 17 00:00:00 2001
From: "Eugeniy E. Mikhailov" <evgmik@gmail.com>
Date: Sun, 2 Jan 2022 18:22:04 -0500
Subject: redo lockin via SCPI_PROPERTY

---
 qolab/hardware/lockin/srs_sr865a.py | 135 +++++++++++-------------------------
 1 file changed, 40 insertions(+), 95 deletions(-)

(limited to 'qolab/hardware/lockin')

diff --git a/qolab/hardware/lockin/srs_sr865a.py b/qolab/hardware/lockin/srs_sr865a.py
index 3d3ebfc..727c54e 100644
--- a/qolab/hardware/lockin/srs_sr865a.py
+++ b/qolab/hardware/lockin/srs_sr865a.py
@@ -1,5 +1,11 @@
 from qolab.hardware.basic import BasicInstrument
 from qolab.hardware.lockin import LockinSCPI
+from qolab.hardware.scpi  import SCPI_PROPERTY
+from enum import IntEnum, EnumMeta
+
+class TimeBaseOption(IntEnum):
+    AUTO=0
+    INT=1
 
 class SRS_SR865A(LockinSCPI):
     """ SRS SR865A lockin """
@@ -9,101 +15,40 @@ class SRS_SR865A(LockinSCPI):
         self.resource.read_termination='\n'
         self.deviceProperties.extend(['TimeBaseMode'])
 
-    @BasicInstrument.tsdb_append
-    def getFreqInt(self):
-        qstr = f'FreqInt?'
-        rstr = self.query(qstr)
-        return(float(rstr))
-
-    @BasicInstrument.tsdb_append
-    def setFreqInt(self, freq):
-        cstr = f'FreqInt {freq}'
-        rstr = self.write(cstr)
-
-    # this one has only getter
-    @BasicInstrument.tsdb_append
-    def getFreqExt(self):
-        qstr = f'FreqExt?'
-        rstr = self.query(qstr)
-        return(float(rstr))
-
-    @BasicInstrument.tsdb_append
-    def getHarm(self):
-        qstr = f'Harm?'
-        rstr = self.query(qstr)
-        return(int(rstr))
-
-    @BasicInstrument.tsdb_append
-    def setHarm(self, harm):
-        cstr = f'Harm {harm}'
-        rstr = self.write(cstr)
-
-    @BasicInstrument.tsdb_append
-    def getSinAmpl(self):
-        qstr = f'SLVL?'
-        rstr = self.query(qstr)
-        return(float(rstr))
-
-    @BasicInstrument.tsdb_append
-    def setSinAmpl(self, ampl):
-        cstr = f'SLVL {ampl}'
-        rstr = self.write(cstr)
-
-    @BasicInstrument.tsdb_append
-    def getSinOffset(self):
-        qstr = f'SOFF?'
-        rstr = self.query(qstr)
-        return(float(rstr))
-
-    @BasicInstrument.tsdb_append
-    def setSinOffset(self, offset):
-        cstr = f'SOFF {offset}'
-        rstr = self.write(cstr)
-
-    @BasicInstrument.tsdb_append
-    def getSensetivity(self):
-        return(int(self.query(f'SCAL?')))
-
-    @BasicInstrument.tsdb_append
-    def setSensetivity(self, val):
-        rstr = self.write(f'SCAL {val}')
-
-    @BasicInstrument.tsdb_append
-    def getTimeConstan(self):
-        return(int(self.query(f'OFLT?')))
-
-    @BasicInstrument.tsdb_append
-    def setTimeConstan(self, val):
-        rstr = self.write(f'OFLT {val}')
-
-    @BasicInstrument.tsdb_append
-    def getFilterSlope(self):
-        return(int(self.query(f'OFSL?')))
-
-    @BasicInstrument.tsdb_append
-    def setFilterSlope(self, val):
-        rstr = self.write(f'OFSL {val}')
-
-    # this one has only getter
-    @BasicInstrument.tsdb_append
-    def getEquivalentFileterBW(self):
-        return(float(self.query(f'ENBW?')))
-
-    @BasicInstrument.tsdb_append
-    def getTimeBaseMode(self):
-        return(int(self.query(f'TBMODE?')))
-
-    @BasicInstrument.tsdb_append
-    def setTimeBaseMode(self, val):
-        rstr = self.write(f'TBMODE {val}')
-
-    @BasicInstrument.tsdb_append
-    def getRefPhase(self):
-        return(float(self.query(f'PHAS?')))
-
-    @BasicInstrument.tsdb_append
-    def setRefPhase(self, val):
-        rstr = self.write(f'PHAS {val}')
+    FreqInt = SCPI_PROPERTY(scpi_prfx='FreqInt', ptype=float, doc='Internal LO frequency')
+    FreqExt = SCPI_PROPERTY(scpi_prfx='FreqExt', ptype=float, doc='External LO frequency', no_setter=True)
+    Harm = SCPI_PROPERTY(scpi_prfx='Harm', ptype=float, doc='Harmonic of the LO')
+    SinAmpl = SCPI_PROPERTY(scpi_prfx='SLVL', ptype=float, doc='Modulation amplitude')
+    SinOffset = SCPI_PROPERTY(scpi_prfx='SOFF', ptype=float, doc='Modulation offset')
+    EquivalentNoiseBW = SCPI_PROPERTY(scpi_prfx='ENBW', ptype=float, doc='Equivalent Noise BandWidth (it is not 3dB BW, see the manual)', no_setter=True)
+    TimeBaseMode = SCPI_PROPERTY(scpi_prfx='TBMODE', ptype=int, doc='10 MHz reference mode: 0 - Auto, 1 - Internal')
+    RefPhase = SCPI_PROPERTY(scpi_prfx='PHAS', ptype=float, doc='LO/reference phase')
+
+    Sensitivity = SCPI_PROPERTY(scpi_prfx='SCAL', ptype=int, doc="""
+    Sensitivity:
+        0:   1  V (uA),  6:  10 mV (nA),  ... 27: 1 nV (fA)
+        1: 500 mV (nA),  7:   5 mV (nA),
+        2: 200 mV (nA),  8:   2 mV (nA),
+        3: 100 mV (nA),  9:   1 mV (nA),
+        4:  50 mV (nA), 10: 500 uV (pA),
+        5:  20 mV (nA), 11: 200 uV (pA),
+    """)
+    TimeConstan = SCPI_PROPERTY(scpi_prfx='OFLT', ptype=int, doc="""
+    Time constant:
+        0:   1 uS,    6:   1 mS, ..... , 21: 30 kS
+        1:   3 uS,    7:   3 mS,
+        2:  10 uS,    8:  10 mS,
+        3:  30 uS,    9:  30 mS,
+        4: 100 uS,   10: 100 mS,
+        5: 300 uS,   11: 300 mS, 
+    """)
+    FilterSlope = SCPI_PROPERTY(scpi_prfx='OFSL', ptype=int, doc="""
+    Output Filter slope:
+        0:  6dB/Oct
+        1: 12dB/Oct
+        2: 18dB/Oct
+        3: 24dB/Oct
+    """)
 
 if __name__ == '__main__': 
     import pyvisa
-- 
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