Several improvements:

getparam outputs empty value if bossdevice is not ready.
sendPulse supports two more function arguments: pulse width in seconds, and marker value.
manualTrigger is now blocking.

toolbox/src/bossdevice.m

@@ -367,7 +367,7 @@ function stop(obj)
  end
 
  function generator_running = get.isGeneratorRunning(obj)
- generator_running = getsignal(obj, 'Unit Delay', 1);
+ generator_running = obj.getsignal('GEN',5);
  end
 
  function obj = arm(obj)
@@ -420,20 +420,24 @@ function stop(obj)
  end
  end
 
- function sendPulse(obj, port)
+ function sendPulse(obj, port, width, marker)
  arguments
  obj
  port {mustBeInteger,mustBeInRange(port,1,4)}
+ width {mustBeScalarOrEmpty, mustBeNonnegative} = 0.001
+ marker {mustBeScalarOrEmpty, mustBeInteger} = []
  end
 
  if obj.isRunning
- marker = port;
+ if isempty(marker)
+ marker = port;
+ end
 
  setparam(obj, 'GEN', 'enabled', 0);
  setparam(obj, 'TRG', 'enabled', 0);
  setparam(obj, 'GEN', 'manualtrigger', 0);
 
- obj.configure_generator_sequence([0 0.001 port marker]); % 0 seconds after the trigger and during 0.001 seconds, trigger port 1 and send marker 1
+ obj.configure_generator_sequence([0 width port marker]); % 0 seconds after the trigger and during 0.001 seconds, trigger port 1 and send marker 1
 
  obj.manualTrigger;
  else
@@ -446,8 +450,16 @@ function manualTrigger(obj)
  setparam(obj, 'TRG', 'enabled', 0);
 
  setparam(obj, 'GEN', 'manualtrigger', 1);
- pause(0.1);
  setparam(obj, 'GEN', 'manualtrigger', 0);
+
+ disp('Triggering sequence...');
+
+ % Block execution of manualTrigger while generator is running
+ while obj.isGeneratorRunning
+ pause(0.1);
+ end
+
+ disp('Sequence completed.');
  end
 
  function openDocumentation(obj)
@@ -504,6 +516,8 @@ function setparam(obj, path, varargin)
  function val = getparam(obj, path, varargin)
  if obj.isInitialized
  val = getparam(obj.targetObject, [obj.appName,'/bosslogic/', path], varargin{:});
+ else
+ val = [];
  end
  end