Added work-around for serial port glitch

tim-seoss · May 11, 2023 · a55864a · a55864a
1 parent e93dab6
commit a55864a
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Showing 2 changed files with 8 additions and 5 deletions.
diff --git a/src/scs_host/__init__.py b/src/scs_host/__init__.py
@@ -6,4 +6,4 @@
 https://packaging.python.org/guides/single-sourcing-package-version/
 """
 
-__version__ = '1.0.13'
+__version__ = '1.0.14'
diff --git a/src/scs_host/sys/host_serial.py b/src/scs_host/sys/host_serial.py
@@ -21,7 +21,10 @@ class HostSerial(Serial):
     classdocs
     """
 
-    __PORT_PREFIX =     "/dev/ttyO"           # hard-coded path
+    __PORT_PREFIX = "/dev/ttyO"             # hard-coded path
+
+    __POST_OPEN_DELAY =     0.1             # seconds
+    __POST_RELEASE_DELAY =  0.1             # seconds
 
     # ----------------------------------------------------------------------------------------------------------------
 
@@ -40,8 +43,7 @@ def open(self, lock_timeout, comms_timeout):
 
         # port...
         self._ser = serial.Serial(port=self.device_identifier, baudrate=self._baud_rate, timeout=comms_timeout)
-
-        time.sleep(0.5)     # as GE910 - 0.3
+        time.sleep(self.__POST_OPEN_DELAY)
 
 
     def close(self):
@@ -54,6 +56,7 @@ def close(self):
         finally:
             # lock...
             Lock.release(self.__lock_name)
+            time.sleep(self.__POST_RELEASE_DELAY)
 
 
     # ----------------------------------------------------------------------------------------------------------------
@@ -67,4 +70,4 @@ def device_identifier(self):
 
     @property
     def __lock_name(self):
-        return "%s-%s" % (self.__class__.__name__, self._device_identifier)
+        return "-".join((self.__class__.__name__, str(self._device_identifier).replace("/", "_")))