CHANGELOG.md

@@ -20,6 +20,8 @@ change warranting a new major release:
 ## Fixed
 
 - CFDP Funnel bugfix: CCSDS wrapping was buggy and works properly now.
+- PDEC: Some adaptions to prevent task lockups on invalid FAR states.
+  PR: https://egit.irs.uni-stuttgart.de/eive/eive-obsw/pulls/393
 
 ## Changed
 
@@ -27,6 +29,14 @@ change warranting a new major release:
 
 ## Added
 
+- PDEC: Added basic FDIR to limit the number of allowed TC interrupts and to allow complete task
+  lockups in the case an IRQ is immediately re-raised by the PDEC module. This is done by only
+  allowing a certain number of handled IRQs (whether they yield a valid TC or not) during
+  time windows of one second. Right now, 800 IRQs/TCs are allowed per time window.
+  This time window is reset if a TC reception timeout after 500ms occurs. TBD whether the maximum
+  allowed number will be a configurable parameter. If the number of occured IRQs is exceeded,
+  an event is triggered and the task is delayed for 400 ms.
+  PR: https://egit.irs.uni-stuttgart.de/eive/eive-obsw/pulls/393
 - git post checkout hook which initializes and updates the submodules
   automatically.