Sets minimum param bank save timeout

CHANGES.md

@@ -7,6 +7,7 @@
 ### Changed:
 - Empty reply always throws exception
 - Fixed exception type on error response (proper `SerialError` response instead of `SerialErrPckgLen`)
+- Fixed leftover "broken" messages on a new command when another command times out
 
 ### Removed:
 - Removed `get_ps_model`

src/pydrs/base.py

@@ -466,7 +466,13 @@ def save_param_bank(self, type_memory: int = 2) -> bytes:
             + index_to_hex(list_func.index("save_param_bank"))
             + hex_type
         )
-        return self._transfer(send_packet, 6)
+
+        # User defined timeout is temporarily changed to a "safe" value to prevent lockups
+        old_timeout = self.timeout
+        self.timeout = 10
+        ret = self._transfer(send_packet, 6)
+        self.timeout = old_timeout
+        return ret
 
     def load_param_bank(self, type_memory: int = 2) -> bytes:
         """Loads all parameter values into param_data"""

src/pydrs/pydrs.py

@@ -86,7 +86,7 @@ class EthDRS(BaseDRS):
 
     def __init__(self, address: str = None, port: int = 5000):
         super().__init__()
-        self.serial_timeout = 50
+        self._serial_timeout = 50
         if address is None:
             print(
                 "From 2.0.0 onwards, creating the object then using 'connect' to connect will be deprecated. Please use 'EthDRS(address, port)' instead."
@@ -95,7 +95,7 @@ def __init__(self, address: str = None, port: int = 5000):
             self.connect(address, port)
 
     def _format_message(self, msg: bytes, msg_type: bytes) -> bytes:
-        msg = msg_type + struct.Struct(">f").pack(self.serial_timeout) + msg
+        msg = msg_type + struct.Struct(">f").pack(self._serial_timeout) + msg
         return msg[0:1] + struct.pack(">I", (len(msg) - 1)) + msg[1:]
 
     @staticmethod
@@ -140,6 +140,7 @@ def timeout(self) -> float:
 
     @timeout.setter
     def timeout(self, new_timeout: float):
+        self._serial_timeout = new_timeout*1000
         self.socket.settimeout(new_timeout)
 
     def is_open(self) -> bool: