1 files changed, 42 insertions, 9 deletions
diff --git a/qolab/hardware/scope/_basic.py b/qolab/hardware/scope/_basic.py
index d9905ce..eaab281 100644
--- a/qolab/hardware/scope/_basic.py
+++ b/qolab/hardware/scope/_basic.py
@@ -7,7 +7,7 @@ Created by Eugeniy E. Mikhailov 2021/11/29
 import numpy as np
 from qolab.hardware.scpi import SCPIinstr
 from qolab.hardware.basic import BasicInstrument
-from qolab.data.trace import TraceSetSameX
+from qolab.data.trace import TraceSetSameX, TraceXY
 import time
 import logging
 
@@ -83,17 +83,50 @@ class Scope(BasicInstrument):
             "VoltageOffset",
         }
 
+    def getWaveform(
+        self, chNum, availableNpnts=None, maxRequiredPoints=None, decimate=True
+    ):
+        """
+        Get scope channel waveform where X axis is index and not time.
+
+        Waveform MUST HAVE config dictionary with
+        ``trRaw.config["tags"]["rawChanConfig"]`` assigned
+        with items helping to calculate time trace
+        usually ``SampleRate``, ``Npnts``, ``sparsing``.
+
+        For decimate use see ``getRawWaveform``.
+
+        In short decimate=True is slower but more precise.
+
+        """
+        raise NotImplementedError("getWaveform function is not implemented")
+
+    def getTimeTrace(self, rawChanCfg):
+        """Constructs time trace from properties provided in ``rawChanCfg`` dictionary."""
+        raise NotImplementedError("getTimeTrace function is not implemented")
+
     def getTrace(
         self, chNum, availableNpnts=None, maxRequiredPoints=None, decimate=True
     ):
-        # Should work with minimal arguments list
-        # but might be faster if parameters provided: less IO requests
-        # old_trg_mode = self.getTriggerMode()
-        # self.setTriggerMode('STOP'); # to get synchronous channels
-        raise NotImplementedError("getTrace function is not implemented")
-        # if old_trg_mode != "STOP":
-        # short speed up here with this check
-        # self.setTriggerMode(old_trg_mode)
+        old_run_status = self.getRun()
+        if old_run_status:  # avoid unnecessary status change
+            self.setRun(False)  # stop if currently running
+            self._waitUntillStop()
+        # to get synchronous channels
+        wfVoltage, rawChanCfg = self.getWaveform(
+            chNum,
+            availableNpnts=availableNpnts,
+            maxRequiredPoints=maxRequiredPoints,
+            decimate=decimate,
+        )
+        t = self.getTimeTrace(rawChanCfg)
+        tr = TraceXY(f"Ch{chNum}")
+        tr.x = t
+        tr.y = wfVoltage
+        # restore scope to the before acquisition mode
+        if old_run_status:  # avoid unnecessary status change
+            self.setRun(old_run_status)  # start running if it was old run state
+        return tr
 
     def getTriggerMode(self):
         # we expect NORM, AUTO, SINGLE