Merge pull request #171 from bmoneke/ps4824-setChannel

Ps4824 set channel fixed
colinoflynn · Aug 10, 2021 · 62cb0bd · 62cb0bd
2 parents 3b79245 + ee03abb
commit 62cb0bd
Showing 1 changed file with 11 additions and 5 deletions.
diff --git a/picoscope/ps4000a.py b/picoscope/ps4000a.py
@@ -228,11 +228,13 @@ def _lowLevelSetChannel(self, chNum, enabled, coupling, VRange, VOffset,
                                        c_int16(enabled), c_enum(coupling),
                                        c_enum(VRange), c_float(VOffset))
         self.checkResult(m)
-
-        m = self.lib.ps4000aSetBandwidthFilter(c_int16(self.handle),
-                                               c_enum(chNum),
-                                               c_enum(BWLimited))
-        self.checkResult(m)
+        # Only for model PS4444
+        # See discussion: https://github.com/colinoflynn/pico-python/pull/171
+        if self.model.startswith('4444'):  # Only for model 4444
+            m = self.lib.ps4000aSetBandwidthFilter(c_int16(self.handle),
+                                                   c_enum(chNum),
+                                                   c_enum(BWLimited))
+            self.checkResult(m)
 
     def _lowLevelStop(self):
         m = self.lib.ps4000aStop(c_int16(self.handle))
@@ -454,6 +456,10 @@ def _lowLevelSetDataBufferBulk(self, channel, data, segmentIndex,
         self._lowLevelSetDataBuffer(channel, data, downSampleMode,
                                     segmentIndex)
 
+    def _lowLevelPingUnit(self):
+        """Check connection to picoscope and return the error."""
+        return self.lib.ps4000aPingUnit(c_int16(self.handle))
+
     ####################################################################
     # Untested functions below                                         #
     #                                                                  #