Merge pull request #858 from flit/bugfix/rtx5_invalid_state

Handle invalid RTX5 thread state in description property.

Author: flit

pyocd/rtos/rtx5.py

@@ -209,7 +209,7 @@ def read_core_registers_raw(self, reg_list):
         return reg_vals
 
 class RTXTargetThread(TargetThread):
-    """! @brief Base class representing a thread on the target."""
+    """! @brief Represents an RTX5 thread on the target."""
 
     STATE_OFFSET = 1
     NAME_OFFSET = 4
@@ -278,7 +278,7 @@ def context(self):
 
     @property
     def description(self):
-        return "%s; Priority %d" % (self.STATES[self._state], self.priority)
+        return "%s; Priority %d" % (self.STATES.get(self._state, "(Invalid)"), self.priority)
 
     @property
     def name(self):