Safe kernel structure and safe operation method of satellite-borne computer software
An on-board computer and security kernel technology, which is applied to the secure kernel structure and safe operation of on-board computer software, can solve problems such as interrupt nesting and task delay, and achieve the effect of improving system fault tolerance and software reconfigurability.
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[0032] based on the following Figure 1 ~ Figure 4 , specifically explain the preferred embodiment of the present invention.
[0033] The invention provides a safety kernel structure of on-board computer software, which at least includes: a SPARC processor and a timer.
[0034] The SPARC processor provides a hardware CPU platform on which the on-board computer software runs, and system layer software and task layer software run on the SPARC processor.
[0035] The SPARC processor at least includes: an input register, a local register, a global register, a Y register, a window mask register, an interrupt status register, a program status word register, and a floating-point register.
[0036] The system layer software includes: uCOS-II embedded real-time operating system and XGC compiler, the uCOS-II embedded real-time operating system provides a software environment for onboard computer software to run, and the XGC compiler is used to compile and generate SPARC processor execu...
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