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Multi-task access method based on interrupt system, processor and task access system

An access method and processor technology, applied in the computer field, can solve the problems of reducing the real-time performance of the processing system, and the CPU spends a lot of time on interrupt switching, so as to improve the efficiency and real-time performance of the system, reduce the difficulty of interrupt management, and avoid data loss. Effect

Pending Publication Date: 2021-12-24
SHENZHEN SKYFEND TECH CO LTD
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Problems solved by technology

[0003] Usually, when multitasking is input to the automotive system, the automotive system needs to control the full interrupt system architecture to frequently switch between the interrupt-on mode and the interrupt-off mode. This method causes the CPU to spend more time on interrupt switching, thereby reducing the processing system. real-time

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  • Multi-task access method based on interrupt system, processor and task access system

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0041] It should be noted that, if there is no conflict, various features in the embodiments of the present invention may be combined with each other, and all of them are within the protection scope of the present invention. In addition, although the functional modules are divided in the schematic diagram of the device, and the logical order is shown in the flowchart, in some cases, the division ...

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Abstract

The invention relates to the technical field of computers, and discloses a multi-task access method based on an interrupt system, a processor and a task access system. The method comprises the steps of responding to an interrupt request sent by an interrupt system triggered by a target task, determining an interrupt priority of the target task according to the interrupt request, determining a target FIFO storage space according to the interrupt priority of the target task, and when a data loss prevention model is met, accessing the target FIFO storage space. On one hand, according to the method, the target FIFO storage space can be read / written under the condition that interruption is not turned off, frequent switching between an interruption turning-on mode and an interruption turning-off mode is avoided, the interruption management difficulty can be reduced, and the FIFO storage space access efficiency and the system real-time performance are improved. And on the other hand, interruption is not required to be shut down or software is not required to be used for blocking, so that data loss is avoided.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a multi-task access method based on an interrupt system, a processor and a task access system. Background technique [0002] With the development of autonomous driving technology, there are more and more application devices in the car, and it is often the case that multiple application devices use a shared device. In addition, automobiles have higher and higher real-time requirements for software. Therefore, in order to meet the above two situations at the same time, the full interrupt system architecture is more and more frequently used in the above scenarios. [0003] Usually, when multitasking is input to the automotive system, the automotive system needs to control the full interrupt system architecture to frequently switch between the interrupt-on mode and the interrupt-off mode. This method causes the CPU to spend more time on interrupt switching, thereby reducing the pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/48G06F5/06
CPCG06F9/4812G06F5/065
Inventor 张冬
Owner SHENZHEN SKYFEND TECH CO LTD
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