SPRUJ17H March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
The Real Time Interrupt module of the RTI/WWDT module provides general timer functionality for operating systems and for benchmarking code. The module incorporates several counters, which define the timebases needed for operating system-based scheduling requirements.
This module is specifically designed to fulfill the requirements for OSEK (“Offene Systeme und deren Schnittstellen für die Elektronik im Kraftfahrzeug”; “Open Systems and the Corresponding Interfaces for Automotive Electronics”) as well as OSEK/Time compliant operating systems.
The timers also provide the ability to benchmark certain areas of code by reading the counter contents at the beginning and the end of the desired code range and calculating the difference between the values.
Figure 13-253shows the overview diagram of the RTI-only module.
The WWDT instances are intended to function as a digital windowed watchdog for the CPU core that they are associated with:
All WWDT instances that are provisioned for a particular CPU core should not be used by any other CPU cores.
Figure 4-25 shows the overview diagram of the WWDT-only module.