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Embedded system as well as interrupt processing method and device thereof

A technology of embedded systems and processing methods, applied in the field of embedded systems and their interrupt processing, can solve problems such as complex processing of interrupt sources, achieve the effects of accelerating interrupt response speed, improving overall performance, and increasing interrupt response speed

Active Publication Date: 2013-09-11
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the platforms on which the embedded operating system runs are becoming more and more diverse, and the processing of various interrupt sources is becoming more and more complicated.

Method used

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  • Embedded system as well as interrupt processing method and device thereof
  • Embedded system as well as interrupt processing method and device thereof
  • Embedded system as well as interrupt processing method and device thereof

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Embodiment Construction

[0046] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways than those described here, and those skilled in the art can make similar extensions without departing from the connotation of the present invention. Accordingly, the present invention is not limited to the specific embodiments disclosed below.

[0047] figure 1 It is a schematic flowchart of the interrupt processing method of the embedded system provided by the embodiment of the present invention. like figure 1 As shown, the interrupt processing method of the embedded system includes:

[0048] Step S101, after the system starts, registe...

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Abstract

The invention discloses an embedded system as well as an interrupt processing method and device thereof. The interrupt processing method comprises steps as follows: after the system is started, low-level interrupt servicing routines and high-level interrupt servicing routines are registered on the basis of an interrupt event of the device; after an interrupt signal is received, a corresponding low-level interrupt servicing routine is skipped to and performs interrupt processing according to an identified interrupt type; when the interrupt processing is judged to be unfinished according to a returned result after the interrupt processing of the low-level interrupt servicing routine, to-be-processed information of the interrupt is stored into a buffer zone, the low-level interrupt servicing routine activates a corresponding high-level interrupt servicing routine, and then the context is switched and returned to the system for scheduling; and the activated high-level interrupt servicing routine is scheduled in the system, the to-be-processed information is read from the buffer zone, a call-back function registered by an upper-layer application is executed, and the interrupt processing is realized. By means of the interrupt processing method and device, the efficiency of interrupt processing can be improved, the interrupt delaying is reduced, and the overall performance of the system during operation is improved.

Description

technical field [0001] The invention relates to the field of embedded systems, in particular to an embedded system and an interrupt processing method and device thereof. Background technique [0002] With the rapid development of embedded technology, embedded real-time operating system (embedded RTOS, embedded Real-time operating system) is being more and more widely used in various fields such as industrial automation, electronic communication, and home appliances. At the same time, the platforms on which the embedded operating system runs are becoming more and more diverse, and the processing of various interrupt sources is becoming more and more complicated. In this case, in order to ensure the system stability, real-time performance and improve the efficiency of interrupt handling in the process of interrupt processing of the embedded platform, the original interrupt processing technology has also been continuously developed. [0003] The interrupt processing method cur...

Claims

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Application Information

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IPC IPC(8): G06F9/48
Inventor 湛振波
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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