Util: Add two conversion function for DA/AD unit string return

Added GetADChannelUnit, GetDAChannelUnit that return the unit string
depending on clamp mode.

Adapted GetChanAmpAssignUnit to use the new functions.

Packages/MIES/MIES_MiesUtilities_Conversion.ipf

@@ -270,3 +270,15 @@ Function MapAnaFuncToConstant(anaFunc)
 #endif
 	endswitch
 End
+
+/// @brief returns the unit string for the AD channel depending on clampmode
+threadsafe Function/S GetADChannelUnit(variable clampMode)
+
+	return SelectString(clampMode == V_CLAMP_MODE, "mV", "pA")
+End
+
+/// @brief returns the unit string for the DA channel depending on clampmode
+threadsafe Function/S GetDAChannelUnit(variable clampMode)
+
+	return SelectString(clampMode == V_CLAMP_MODE, "pA", "mV")
+End

Packages/MIES/MIES_WaveDataFolderGetters.ipf

@@ -164,10 +164,10 @@ Function/WAVE GetChanAmpAssignUnit(device)
 		Make/T/N=(4, NUM_HEADSTAGES) dfr:ChanAmpAssignUnit/WAVE=wv
 		wv = ""
 
-		wv[0][] = "mV"
-		wv[1][] = "pA"
-		wv[2][] = "pA"
-		wv[3][] = "mV"
+		wv[0][] = GetDAChannelUnit(V_CLAMP_MODE)
+		wv[1][] = GetADChannelUnit(V_CLAMP_MODE)
+		wv[2][] = GetDAChannelUnit(I_CLAMP_MODE)
+		wv[3][] = GetADChannelUnit(I_CLAMP_MODE)
 	endif
 
 	SetDimLabel ROWS, 0, VC_DAUnit, wv