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PowerPC processor based vehicular operating system interrupt management method

A technology of operating system and management method, which is applied in the field of embedded real-time operating system and embedded real-time operating system based on PowerPC processor structure, can solve the problems of insufficient stack usage, insufficient combination of stack management and processor characteristics, etc. Achieve the effect of reducing stack usage requirements

Inactive Publication Date: 2005-08-17
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this invention relates to reducing interruptions during task execution by implementing an algorithm called Interrupt Stack Management (ISSM). This helps manage memory consumption more efficiently while still ensuring that important data remains accessible for future use.

Problems solved by technology

This technical problem addressed in this patented text relates to interruptions between two systems (RTSL) that can cause delays while waiting for an external event such as another computer's memory access request from disk). Current methods involve performing interrupt handling before responding properly without saving any data being processed until all necessary resources have been restored. Additionally, existing methodologies require complex programming frameworks and address tables for efficient execution of certain processes, leading to unnecessary workload allocation across multiple cores.

Method used

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  • PowerPC processor based vehicular operating system interrupt management method
  • PowerPC processor based vehicular operating system interrupt management method
  • PowerPC processor based vehicular operating system interrupt management method

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Embodiment Construction

[0049] The method proposed by the invention is a part of the embedded real-time operating system kernel, and is realized in the form of operating system code. The following takes the OSEKLinux operating system independently developed by Tsinghua University and the hardware platform environment based on the MPC555 microcontroller as an example to illustrate the specific implementation of the interrupt management method.

[0050] The dual-kernel mechanism is a method of hard real-time standard non-real-time Linux. By inserting a small real-time kernel between the standard Linux kernel and the hardware, the real-time kernel provides real-time task management, and the Linux kernel is the priority of the real-time kernel. The lowest real-time task that can only be run when no real-time task is ready.

[0051] OSEKLinux adopts the system model design scheme of dual-core real-time architecture: the general-purpose operating system Linux kernel and a real-time OSEK-compliant real-time...

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Abstract

An interruption management method in a car operation system based on power PC processor characterizes in applying different processed filed conservations according to the operation state of a system when interruption happens to the inserted real-time operation system applying double kernel structure realized based on power PC processor and applying one time conservation one time recover when carrying out kernel operation so as to reduce unnecessary stack operation, which increases the interruption response speed and system operation efficiency.

Description

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Claims

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Application Information

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Owner TSINGHUA UNIV
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