calculate max freq

Author: Json-To-String

labscript_devices/AD9959DDSSweeper/blacs_tabs.py

@@ -13,12 +13,20 @@
 
 from blacs.device_base_class import DeviceTab
 
+
 class AD9959DDSSweeperTab(DeviceTab):
     def initialise_GUI(self):
+        device = self.settings['connection_table'].find_by_name(self.device_name)
+
+        ref_clk_freq = device.properties['ref_clock_frequency']
+        pll_mult = device.properties['pll_mult']
+        self.com_port = device.properties['com_port']
+
+        max_freq = 0.5 * (ref_clk_freq * pll_mult)
         # Capabilities
         self.base_units =    {'freq':'Hz',          'amp':'Arb',   'phase':'Degrees'}
         self.base_min =      {'freq':0.0,           'amp':0,       'phase':0}
-        self.base_max =      {'freq':250.0*10.0**6, 'amp':1,       'phase':360}
+        self.base_max =      {'freq':max_freq,      'amp':1,       'phase':360}
         self.base_step =     {'freq':10**6,         'amp':1/1023., 'phase':1}
         self.base_decimals = {'freq':1,             'amp':4,       'phase':3}
         self.num_DDS = 4
@@ -38,10 +46,6 @@ def initialise_GUI(self):
         dds_widgets, _, _ = self.auto_create_widgets()
         self.auto_place_widgets(('DDS Outputs', dds_widgets))
 
-        device = self.settings['connection_table'].find_by_name(self.device_name)
-
-        self.com_port = device.properties['com_port']
-
         self.supports_remote_value_check(False)
         self.supports_smart_programming(True)