Add ps6000aSetExternalClock function to ps6000a.py

Author: neil.hamilton

picosdk/ps6000a.py

@@ -814,4 +814,12 @@ def __init__(self):
         int16_t    handle,
         PicoTemperatureSensorInteractions    callback
     ); """
-ps6000a.make_symbol("_SetTemperatureSensroInteractionCallback", "ps6000aSetTemperatureSensorInteractionCallback", c_uint32, [c_int16, c_void_p], doc)
+ps6000a.make_symbol("_SetTemperatureSensroInteractionCallback", "ps6000aSetTemperatureSensorInteractionCallback", c_uint32, [c_int16, c_void_p], doc)
+
+doc = """ PICO_STATUS ps6000aSetExternalClock
+    (
+        int16_t    handle,
+        PICO_EXTERNAL_FREQUENCY    frequency,
+        int16_t    threshold
+    ); """
+ps6000a.make_symbol("_SetExternalClock", "ps6000aSetExternalClock", c_uint32, [c_int16, c_uint32, c_int16], doc)