Debugging test-oriented operating system kernel guiding and loading hardware architecture and debugging test-oriented operating system kernel guiding and loading hardware method

Abstract

The invention discloses a debugging test-oriented operating system kernel guiding and loading hardware architecture and a debugging test-oriented operating system kernel guiding and loading hardware method.The method uses a set storage unit, a peripheral auxiliary interface and a special register to achieve and set four kinds of priority-adjustable kernel guiding and loading modes for a real-timeoperation system. The modes can be mutually backed up. One or more than one of the four real-time operating system kernel guiding and loading modes is or are executed according to a set priority sequence until the operating system kernel guiding and loading are completed. According to the debugging test-oriented operating system kernel guiding and loading hardware architecture and the debugging test-oriented operating system kernel guiding and loading hardware method, auxiliary debugging test and verification can be carried out on a system starting process before system-on-chip design shaping,and system state exception caused by failure of starting the operating system kernel in a single way can be tolerated; The existing peripheral interfaces of a system-on-chip can be reused, so that the additional hardware overhead is low.

Description

technical field [0001] The invention relates to the technical field of an embedded system on a chip, in particular to an operating system kernel guidance and loading hardware architecture and method for debugging and testing. Background technique [0002] In the working process of the embedded microprocessor and the real-time operating system kernel, the boot and loader is the first part of the code executed after the system is powered on and started. One of the functions of the boot program is to be responsible for copying and loading the real-time operating system kernel into the static random-access memory (Static Random-Access Memory, SRAM) space, and jumping to the specified address to start execution according to the initial setting. Whether the booting and loading process of the operating system kernel can be successfully completed directly determines whether the software and hardware system can normally enter the subsequent working state. [0003] At present, the bo...

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Problems solved by technology

[0003] At present, the booting and loading process of the operating system kernel of an embedded System on Chip (SoC) generally depends on a specific-purpose Boot ROM, the startup method is relatively single, and there are relatively high requirements for custom design capabilities and process technology for ASICs. High, there is a lack of system-level backup solutions during design and verification, and there are weak links or even failure risks in system robustness

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