some fixes

_device_main.py

@@ -20,20 +20,20 @@ GUI_TIMEOUT_INTERVAL = 5#505 - dev.WAIT_AFTER_SEND*1000 # GUI refresh time in mi
 SAVE_POINTS_NUMBER = 1000 # Number of most recent data points kept in memory
 
 INITIAL_TEMPERATURE_1 = 28 # Set initial temperature for Laser 1 in Celsius: from -1 to 45 C ??
-INITIAL_TEMPERATURE_2 = 28.9 # Set initial temperature for Laser 2 in Celsius: from -1 to 45 C ??
+INITIAL_TEMPERATURE_2 = 29.2 # Set initial temperature for Laser 2 in Celsius: from -1 to 45 C ??
 INITIAL_CURRENT_1 = 33 # 64.0879 max # Set initial current for Laser 1, in mA
-INITIAL_CURRENT_2 = 35 # 64.0879 max # Set initial current for Laser 2, in mA
+INITIAL_CURRENT_2 = 60 # 64.0879 max # Set initial current for Laser 2, in mA
 
-AD9833_FREQ_DEFAULT_KHZ = 125.0
+AD9833_FREQ_DEFAULT_KHZ = 1000
 AD9833_MCLK_DEFAULT_MHZ = 20.0
 DS1809_MAX_STEP = 63
-DS1809_DEFAULT_STEP = 3
+DS1809_DEFAULT_STEP = 39
 DS1809_INIT_HOME_PULSES = 64
 DS1809_INIT_PULSE_MS = 2
 DS1809_INIT_STARTUP_DELAY_S = 0.35
 STM32_DAC_VREF = 2.5
 STM32_DAC_MAX_CODE = 4095
-PA4_DAC_DEFAULT_VOLT = 0.0
+PA4_DAC_DEFAULT_VOLT = 0.52
 
 #### ---- Functions
 

device_interaction.py

@@ -13,31 +13,16 @@ WAIT_AFTER_SEND = 0.15  # Wait after sending command before requesting input (s)
 
 def create_port_connection():
     prt = None
-    print()
-
-    ports = [port for port, _, _ in sorted(cmd.list_ports.comports())]
-
-    # Linux-only preference: use USB UART ports first.
-    usb_ports = [port for port in ports if "USB" in port]
-    if usb_ports:
-        ports = usb_ports
-
-    for port in ports:
+    for port, _, _ in sorted(cmd.list_ports.comports()):
         try:
-            print("PORT:", port)
             prt = cmd.setup_port_connection(port=port, baudrate=115200, timeout_sec=1)
             cmd.open_port(prt)
             reset_port_settings(prt)
-            return prt
-        except Exception:
-            if prt is not None:
-                try:
-                    prt.close()
-                except Exception:
-                    pass
+        except:
+            prt.close()
             continue
-
-    return None
+        break
+    return prt
 
 
 def _print_state_reply(state_bytes):
@@ -51,9 +36,13 @@ def _print_state_reply(state_bytes):
 
 
 def reset_port_settings(prt):
+    # Reset port settings and check status
     cmd.send_DEFAULT_ENABLE(prt)
     time.sleep(WAIT_AFTER_SEND)
-    return _print_state_reply(cmd.get_STATE(prt))
+    status = cmd.get_STATE(prt).hex()
+    if status is not None:
+        print("Received: STATE. State status:", cmd.decode_STATE(status), "(" + cmd.flipfour(status) + ")")
+        print("")
 
 
 def request_state(prt):