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TMS570LS3137: svc软中断问题

Part Number: TMS570LS3137


目前想在RTI定时器中断处理函数中触发另外一个中断让其执行相应任务,目前想到的只有软中断。有两个问题:

1)软中断优先级是否比IRQ的优先级低,也就是无法嵌套,需要等RTI中断处理执行完再执行软中断的处理函数?

2)如何触发软中断?没有找到相关案例