draft of stage, unstage and trigger method

beamlinetools/devices/eiger.py

@@ -3,3 +3,56 @@ from ophyd import AreaDetector, SingleTrigger, EigerDetector
 class MyDetector(EigerDetector):
     pass
 
+    def set_aquisition_time(self, value):
+        """The aquire time is in seconds"""
+        self.cam.acquire_time.set(value)
+        self.cam.acquire_period.set(value)
+        
+
+    def stage(self):
+        self.cam.fw_name_pattern.set("user/mySpot/2024-03-12_test/test") # EIGER_dir_name = ME[1]  # EIGER_file_name = ME[2]
+        self.cam.trigger_mode.set(3) # this set it to internal series, EIGER_trigger_mode = ME[4]
+        self.cam.num_triggers.set(3) # This is now the number of images per file
+        self.cam.num_images.set(1) # EIGER_nimages = int(ME[5])
+        self.cam.fw_num_images_per_file.set(1) 
+        self.cam.photon_energy.set(8000) # we have to catch this automatically
+        self.cam.compression_algo.set(1) # set compression method to bslz4
+        self.cam.beam_center_y.set(1500)
+        self.cam.det_distance.set(300)
+        self.cam.acquire_time.set(1)
+        self.cam.acquire.set(1) # arm the detector, the detector is now waiting to be triggered
+        # I could not find this, not sure is needed. EIGER_image_start_nr = int(ME[3])
+        super().stage()
+
+    def unstage(self):
+        self.cam.acquire.set(0) # disarm the detector
+        super().unstage()
+
+    def trigger_to_be_written(self):
+        #Create a callback called if count is processed
+        def new_value(*,old_value,value,**kwargs):          #MDEL of $(P):rdCur must be set to -1
+
+            status.set_finished()
+            
+            # Clear the subscription.
+            self.readback.clear_sub(new_value)
+
+        #Create the status object
+        status = DeviceStatus(self.readback,timeout = 10.0)
+
+        #Connect the callback that will set finished and clear sub
+        self.readback.subscribe(new_value,event_type=Signal.SUB_VALUE,run=False)
+        
+
+        self.cam.special_trigger_button.set(1)  
+        
+        return status
+
+
+
+	    
+# - We need to send the parameters and arm the detector
+# - we need to send a software trigger at every measurements
+# - we have to be able to cancel and abort the scan
+#  - we disarm the detector at the end
+# - we have to be able to wait for the detector to end the acquisition or whatever it is doing. 
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