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SYS/BIOS 中断优先级



按照我的理解,系统使用timer2做systick,在有的嵌入式系统介绍时说这个timer的优先级是最高的,只要全局中断不关闭,以实现系统的正常调度。

但是上面的系统timer2默认的优先级只有18,几乎是最低的了,不知道C2000是如何处理的,在高优先级ISR运行时,低优先级的timer2是否有机会运行?

而timer2 systick中断时,我想应该关全局中断,只有NMI不受影响。那位能针对sys/bios说一下timer2在sys/bios中的具体细节?谢谢!